Commercial Lighting Solutions Web Tool: Improve Your Building Efficiency (text version)
Below is a text version of the Webinar titled "Commercial Lighting Solutions Web Tool: Improve Your Building Efficiency," originally presented on December 14, 2010. In addition to this text version of the audio, you can access the presentation slides and a recording of the Webinar (WMV 65 MB).
Hi, my name is Jenni Sonnen. I'd like to welcome you to today's webinar titled Commercial Lighting Solutions Webtools, Improve Your Building Efficiency. This webinar is presented by the Building Technologies Program at the U.S. Department of Energy. We're excited to have with us today one of the tools principle developers who will talk about features of the interactive tool and demonstrate how to get the most out of it.
But before we start, I have housekeeping items to cover. First, I want to mention that everyone today is on listen-only mode. We will have a Q&A session at the end of the presentation. You can participate by submitting your questions electronically throughout the webinar and also at the end. To submit a question, click on the Q&A link on the top bar of your screen, type the question in the box, and click ask. Please be sure to click ask and not the symbol of the raised hand. Our speaker will address as many questions as time allows after the presentation.
Also, I wanted to point out the URL on the screen, www.buildings.energy.gov/webinars.html. On that web page is a link to see today's slides. Also, today's presentation is being recorded and a video of the presentation will be posted in the near future. You can also visit past webinars on the archive page.
Finally, we have a few quick questions to ask you to help us learn more about the audience and target future presentations. We will start with two questions now and then have more questions at the end of the presentation before the Q&A session. So when you see the question, please click on your screen to indicate the appropriate response.
The first question should be on your screen now. Please review the question and answer by clicking the appropriate response. So the question is how many people at your site are participating in today's webinar? We'll give you a couple of more seconds, so please vote now. Okay, great. We'll move on to the second question.
So now we just wanted to know what affiliation you would associate yourself with, so please describe your organization by clicking on a response. Great. We're about to close this question, so please vote now. Great. Thank you for your participation.
And now, I'll go ahead and introduce our speaker, Carol Jones. Carol is the lighting program manager at the Pacific Northwest National Laboratory in the Buildings Program. She will give us an in-depth look at the tool in today's webinar. And with that, I'll turn the presentation over to Carol.
Hello. Welcome, today. Thank you for taking time to join us.
Okay, so I'm going to start by talking about the purpose of the Commercial Lighting Solutions because we have a lot of folks on the phone who have not heard anything about this program at all. For those of you who know a little something about it, I thank you in advance for your patience because these slides go kind of fast to the top, but I wanted to make sure to be inclusive for anybody who's hitting this topic for the first time. And then I'm going to describe a little bit about what's under the hood, meaning what is inside of the webtool, where did the designs come from, how were they developed, and that sort of thing, and a little bit of information about the energy analysis. Then I'll go into a demonstration of the webtool on the first portion of the tool, which is where we provide design guidance and best practices content.
Once that's done, I will talk about how to apply these design practices and design guidance templates to your project, what sort of questions you would need to consider as you apply the information. After that, we'll go back to the webtool and do a demonstration of the energy estimate portion of the tool and that is where you would provide more details about your final design in order to get a much more detailed energy estimate and that energy estimate then can be used for you to understand how you're performing against your goals or how you might want to apply for a rebate or incentive from your local utility, that sort of thing. And then we'll wrap it up with the conclusion and next steps, just three slides there just to talk about what we're going to be doing next on the commercialized solutions project.
And finally, we'll end with questions and answers from the audience. So the expectation is that we'll get through most of this in the first hour. We have an hour and a half preserved on the webinar and we want to leave a solid half an hour at the end to be able to get your questions asked and answered.
Moving to the purpose of the commercialized solutions.
Just backing up to think about the big picture here. One of the things that is challenging for energy efficiency and lighting is that it's not a question of not knowing how to do it in terms of having technology and having options and that sort of thing. The greater challenge is getting the market to actually utilize these technologies as practices. So it's not like it hasn't been invented. It's not like it's not on the market.
The challenges are other things, understanding the different options in terms of energy efficiency equipment, understanding how to put those things together into an integrated system, understanding what the value packages are, how these things relate to people and mission, and not unimportantly, what are the market forces, which includes distribution, channel masters, all the various different aspects of the buildings industry. How do we put all that together? And so that is why we've put together this webtool is to break down these barriers.
And the manufacturers, in particular, are very used to addressing some of these challenges. So another way of describing that is that we have, going back some, lighting was considered easy pickings. Lighting was what is the low-hanging fruit? What is the simplest, easiest thing to do to save energy at the lowest cost? And that has been lighting in the past and the easiest way to do that over time or back when was to just do a lamp ballast retrofit from T12 to T8. That was the thing that happened for a very, very long time. And after a while, that solution began to wane, meaning that the market penetration occurred and so we've got an awful lot of T8's in the market right now. That opportunity is not quite the same as it was when it first started. And as we try to save more energy, the challenges become different.
So for instance, here I've got three new options here on a list, one being high-performance T8 systems and learning how to use those systems with low, normal, and high ballast, and that is a more challenging question. You need to understand what your light levels are going to be, what you're going from, what you're going to, which ballast to use, how to get that ballast into your fixture.
Another option that has become more and more popular is the task ambient redesign solution. If you go back ten years, the task ambient solution was very expensive and not very commonly used. These days, it's more and more prevalent, more affordable, and more well understood. But again, you need to be a little bit more thoughtful about what you're doing in the space. It's not quite the same as a simple component retrofit.
And then going a little further on the curve here, some new opportunities in the world of emerging technology are technologies that are more advanced, such as digital advanced controls, or sometimes called intelligent lighting. That's a solution that is available now but is underutilized. Once again, that requires some thoughtfulness and some engineering. All of this is on the path, of course, to solid-state lighting. In the truest sense, these arrows would be overlapping, but to simplify, I've just put these as chronologies, as a general chronology.
So what we want to do here with the commercialized solution is to bring newer technologies on to the market and get more updates. The Department of Energy is very committed to speed and scale. That is a tremendous push right now, trying to find ways to get commercialized technologies in to buildings and obviously there's a tremendous concern about jobs and the economy and energy efficiency is really front and center in terms of offering an opportunity to improve the economy, get people working again. And so retrofit and relighting is one of those things that is taken as a very high priority by the Department of Energy.
And so these technologies that are included in CLS are considered emerging technologies and manufacturers are probably very familiar with this chart here, the way that it described technologies that are developed but don't always get enough traction in the market to be able to make it through this chasm here and so that's called the Valley of Death.
And so commercialized solutions is designed to get these technologies through this chasm into common usage, to create a transition from standard practice to best practice, and we do that by reducing complexity and cost, so that's part of what you'll hear today is how this webtool helps to do that.
I'm gonna describe to you what the opportunities are in CLS and how is that different from what's been done previously. And so starting with the fact that most energy-efficiency opportunities in lighting have historically been components, the lamp and ballast retrofit, and what we do on CLS is we include luminaires, as well as the high performing components, and we include controls. That's a really significant distinction. All of these strategies that are listed here are available inside of the webtool in various different places and ways. And we also measure the savings in controls. That's a significant difference in what's happened in the past.
And so the other thing that's important to understand about what we offer is that design is an energy efficiency product in its own right and I know that's sort of a different way to think about it. We think about energy efficiency as being a technology, as a widget, etc., and so what this whole paradigm is doing is taking us from widgets to systems and further, beyond systems to practices. And so design and the patterns of design that we use typically are an opportunity. So instead of having the commodity approach, which is primarily 2 x 4 recessed troffers on 8 x 10 centers, it is the most common type of approach, heavily commodity product based, what we're doing here is introducing new design options.
And the intent is that where you've got typical conditions, that you can actually have these become new patterns. In other words, not to necessarily have every space be designed from scratch because obviously that's a barrier, but what we want to do is make it easier for people to do this and get comfortable with it and used to it. So that's why we put this together in a template format because the majority of the market is functioning in that way.
And so last but not least, we pull all these things together and the only thing that we don't have control over are these interior conditions such as reflectances, space geometry, work station height and size, etc. That's not something that's within the realm of control in the relighting retrofit most of the time.
So that is sort of an overview of what is within the webtool. How does it matter to you? We took a little poll to figure out who's on the phone here and we've got a good diversity of folks, and so from the perspective of an owner and a tenant, why would you be interested in using the commercial lighting webtool? And the answer is that you will get lighting solutions offered to you as actual templates and there's obviously this is a government-funded program so there's no cost for that and it gives you a good starting point. And these solutions are not just energy efficient. They're also high value with respect to the quality of the lighting and that's something that our team takes very seriously.
So what that does then is it helps to improve your building, your space, both in terms of the asset value and in terms of the tenants and their experience in the space. That's very important for folks who own buildings or for people who are living within them and working within them. Also important is that it will save money. Energy efficiency saves money and so all of these solutions will save energy and that then saves you on your energy bills. And then finally, one of the things that we're working on in terms of our strategy and our partnership is connecting with utility programs so that those utility programs can offer rebates and incentives for integrated solutions on a kWh basis. So from the perspective of owner and tenant, that's why it would be useful to you.
From the perspective of utilities and energy programs, we have been in conversation with utility programs and regional market transformation groups and national groups for quite a long time as we've done the technical development on this webtool. And we had the conversation beginning saying, "Are you interested in systems?" speaking to the utilities. And the response that we got back is, "Absolutely, because systems are the hardest thing to deal with." And the concept of trying to do this, what we've done here on a utility-by-utility basis or even a region-by-region basis, it's terribly daunting and there's really no need to be doing that over and over and over again.
So back when this project first started, we had buy in from the get go from utilities saying, "Yes, we want to learn how to work with integrated systems in our programs and yes, we very much want to work with kWh savings, in addition to the component-based rebates." And the kWh savings also taps into deemed — not deemed savings — demand response as the next opportunity. Because the kWh savings actually will tell you how much energy you're saving over time, as opposed to just what is your electical load. So that is from the perspective of the utilities of energy savings.
Lighting practitioners and industry groups. The goal here is to go from standard practice to best practice and the primary audience here are folks who are interested in learning more about "green design," if you will, energy efficient designs and practices, staying up to speed with the newest opportunities, the best opportunities at the lowest cost. We recognize that the world is changing very fast and the products are changing very fast and the opportunities are moving quickly and so it's our goal here to support practitioners with good solutions that are readily available. And we think of this in terms of leap frogging, ramping up the learning curve for the typical practitioner.
It's very expensive to go back to school, to take courses. They have to span all this and anything that DOE can do to help the practitioner to do that more quickly moves us towards speed and scale and that's obviously in our best interest to support that entire community. And so we're speaking to architects and engineers, electrical contractors, distributors, interior designers who do lighting and others, all practitioners.
We also recognize that not everybody necessarily really needs best practices guidance. Some of you may already be using these strategies already and that's fine. That's great. So anybody who needs it can avail themselves of the best practices guidance and anyone who doesn't need it can still use the energy estimate portion of the webtool as a way to measure savings and also to connect to the products and assistance. So whether you're interested in the best practices guidance or the energy estimate portion of the tool, we expect that some aspect of this will be useful to most practitioners.
On the manufacturing side, obviously manufacturers are interested in how does this connect to equipment? And the value here is that this is a voluntary program that is a market pull exercise, meaning that we are using market forces and information and the connectivity of the web, the availability of the Internet, to pull these emerging technologies into the market so we get more traction and more uptake. And this, of course, supports the manufacturers who have developed innovative products. One of the biggest challenges for manufacturers that I've heard over the years is the commodity market, meaning that the products that sell most often are the ones that also tend to be the cheapest and the oldest and what we're trying to do is change that so that people are using the newer technologies, the high performance technologies, and so we can move the needle towards the better practices.
We are working now with NEMA to develop wayfinding paths to products so that it will be easier for end users to access individual products and not just specification information that we offer in generic format right now. So that is a broad perspective. I'm hoping to catch most of you in the audience there.
So what's under the hood?
The next thing I want to cover is where do these designs come from and why should you even consider using these designs? If I were in your shoes, I would want to know what was the basis? Who did the work? Why is it okay? Is it okay? What were the parameters? And so this is a very, very simple slide. Obviously the design development and the webtool development was a very complex process that took us several years actually to get to the point where we are now. And so this is a very simplified approach and I can take questions offline or at a later date if you want more information.
But the basic picture is that we figured out first who to work with and that includes lighting designers and manufacturers and architects and engineers and owners and tenants and green groups and utility and program managers altogether were pulled into meetings, all day working meetings, where we would talk about our goals in the various different perspectives. And the subset of these meetings was the lighting design charrette and that's where we got the professionals that are actively involved in design from that group and we came together around what is the process going to look like? How are we going to do this work? Critically important, what is the design criteria?
And we are using IES recommended practices for these designs and the IES Handbook and the design guiding team. These were all the basis for the design. We don't want people to be feeling like they need to sacrifice for energy efficiency, so this is not the turn down the thermostat model here. What we want is to provide high value and energy efficiency at the same time.
And then we came to an agreement on what the basic approaches were gonna be. We certainly cannot be in a position of providing every answer for every space. That's not the goal here. So we came to agreement on the basic approaches and from that, we hired expert lighting designers who did the design development. And we developed backgrounds so that we would figure out what are the most common spaces that are going to be most useful to market and we developed CAD backgrounds based on those parameters. And then the lighting designers ran calculations using actual equipment and developed designs which we then characterized into watts per square foot and vignette details and we provided text, etc., drawings. You'll see all of that in the demonstration of the webtool.
So from there, we also developed implementation guidance, because developing the designs is one thing but then figuring out how do we present the information is a whole 'nother part of the process. So we developed summaries of the information. We provided information about what was the basis for the modeling so that people who are going to apply to the product the design and solutions know what the basis was for modeling. We've got information about how to install the systems to maintain them and we've got luminary schedule information.
So this was the development process, so here's an example of in establishing criteria, we looked at quantity and quality and so we made sure that we weren't sacrificial when it comes to lighting levels so that they're moderate but not inappropriately low. And here's a quick slide just to show that in the IES Handbook, this is a matrix that's in the current handbook right here that shows all the different parameters that matter in various different design environments and what the prioritization should be, so that was the basis for our criteria. And then this here is a book that was produced by the Illuminating Engineering Society and in particular, the Quality of the Visual Environment Committee, put this book together and published it I think just about a year ago, so that was the basis.
When it comes to controls, it was a very similar process. Controls, to be frank with you, was almost as challenging as developing the connected load designs because you can imagine all the different combinations of controls that we needed to consider in putting this together and so we had a very similar process. We got the right people together. We developed the process, the parameters, the criteria, and we came up with a list of strategies. And then templates were developed which were then analyzed in terms of savings. Supplementary material was developed and drawings were provided.
The controls work, also — all of this work, I should say — has gone through an extensive peer review process so that there's been a lot of transparency in terms of what is under the hood. In coming up with the controls, we wanted to hit the sweet spot to make sure that we were inclusive but also beyond code and then making sure that we had support in terms of the design professionals involved and the industry.
I also want to mention our key partnerships throughout this process from the very beginning. We've worked with lots of different partners but the two that jump to the fore are Office of the Future, and this is a group of utilities that have come together around exactly what it says, office of the future and how do we support integrated design for the entire office, not just lighting but all the different building systems. CLS has represented the core, I guess you could say, of the lighting task team and the goal of this group is to work together towards systems in offices, beginning with the end in mind.
And this is supported by New Buildings Institute. They are the program managers on behalf of Office of the Future and we've worked with the great folks out there. Similarly, Advanced Lighting Guidelines is also managed by New Buildings Institute. Advanced Lighting Guidelines has a long history going back 20 years now. It has been a document in the past, but most recently, it's being developed as an online tool and it was just released in November as an online tool and the applications modules that are part of ALG online are the same as the Commercial Lighting Solutions. So we have a dovetailed relationship there so that we're sharing information with each other and these two tools are mutually supportive of each other. We point to them and they point to us and we go back and forth in order to support the end user. So those are two very important partnerships for us.
I want to make sure and state what CLS does not do. We are not naïve enough to think that we could cover all the solutions for all the spaces. Our project follows the 80-20 rule. We are looking for commercial spaces that are very common in their geometry and interior environment and those are the kinds of spaces where it makes sense to develop template solutions. Unique spaces, it does not make sense. It's not worth the bang for the buck. It's not worth the investment nor would it get the usage. So we've picked spaces that are typical and likely to be widely applied.
Just as important, this tool does not replace professional services. It supports professional services. So we are moving the needle to provide a starting point and help people that are in the process of designing lighting systems day in and day out and our goal is to help that community and give you a good starting place.
The third bullet here is that we can only analyze what has been measured. One of the biggest changes in this tool is that we advanced the paradigm into the realm of control, serious usage of control. Now not all lighting control systems have sufficient data for us to be able to anticipate what the savings would be and if we don't feel like we've got a solid source, we will not include the control strategy. It doesn't mean it's not a good strategy. It doesn't mean it shouldn't be considered. It simply means that if we don't have sufficient objective data that we're not at a place yet where we can put it in a webtool.
That said, the more data, the better. And so every time I talk about CLS, I put out a call asking for more data, more data, more data. So anyone on the phone, and there are lots of you on the phone who have access to control data, we're interested and we see this as a continuous improvement opportunity where over time, the more information we get, the more measured data and the more granularity we have about the usage of controls, the better we'll be able to estimate the savings for you. We have to start somewhere so we've started with what we've got and we'll measure that over there.
So now what I'm going to do is switch over to give you a demonstration of the webtool. I'm gonna click over here and show you my desktop, so bear with me for one second while I switch over to share my desktop.
Okay, so this is the front page of the Commercial Lighting Solutions webtool and what you do here is create an account. This is like every other web-based program you've ever found and you just create an account and sign in. It'll take a minute to load here.
It'll start off showing the different options that we've got in the webtool. We can start here with either a design project or energy estimate. And most people will be starting from the beginning of a project and so the design guidance here is meant to say that this is essentially the same as conceptual guidance, and so this first portion of the demo here is I'm gonna show you what that looks like and how you do that.
So when you hit this button, it will start with a blank screen here in terms of project description and I'm just gonna call this Demo 1214. I think that's the date today. And these are the types of spaces that we have material for thus far and for today's demo, I'm gonna show you an office. You can see we've got box retail in here. We also have office. Then this webtool needs to understand where you are based and then you can select your energy code.
Inside of this drop down, you can see there are a lot of different baselines for you to use and I've selected 90.1 2007. And you need to tell the webtool when you get in to the office and when people leave. Obviously this helps the webtool in the estimation process because the operating hours are central to understanding how much energy is used over time. That's a pretty simple first screen and from there, you hit next.
This is what we call the key plan. This is a very generic drawing that describes to you what is going on in a typical space. Well, you notice here that typical spaces are included but it doesn't necessarily include every single space in your entire project. Once again, we have only provided design guidance for spaces that are most common. In the energy estimate portion of the tool, you'll be able to put in information about every single aspect of your space, including electrical closets or anything that's not on this list, you can deal with in the energy estimate.
For the purposes of providing best practices guidance, let's start with an open plan space. So you start with an open plan space. It's gonna ask you what the ceiling height is for your space and whether or not you're planning on having daylight in your space. And it needs to know the partition height, and just so you understand why, I'm going to describe to you why we ask about partition height. And this gives you a sense of what is behind the screen here in terms of algorithms and intelligence inside of the tool.
If you've got very low partitions, it doesn't make sense to — well, let me back up. If you've got very low partitions, then your entheter spacing for your fixtures will be different than if you have very high partitions. If you have very high partitions, your fixtures need to be closer together in order to make sure that you don't have shadows. And so that's the kind of thing where the partition height will help us understand that so that we only offer options that make sense.
So looking at another option there in terms of the difference in partition height, if you were to select a solution that had personal control where you've got one fixture per workstation in an open plan, you wouldn't want to use something like that where there are very, very low partitions, like 42-inch height. Because then you'd have overlap between a fixture that should be controlled by your neighbor and then it's impacting you, so we don't want that to happen, either.
So in terms of what's next, we need to know what is the workstation density in the space. So that we're gonna put in 15 workstations. And then what is the total area? I'm just inputting numbers here. And then we ask you to name your space.
And then it asks you about daylighting. Now if you don't have any daylighting, obviously this screen will not show up, but if you do have daylighting, it will ask you more detail. Okay, it's asking for orientation because that makes a difference in the daylight-harvesting estimate. Okay. We ask you about shading so you can tell us when the shade's going up and down or whether that's handled by occupants, and we also ask about visible transmittance. That's it for daylight harvesting.
So now what happens is you get a list of options. So what you can see here are these are very simplified descriptions of several different types of solutions that you may want to look at in more detail. So you've got four different things on the list here and so let's take a look at this one, and it will load descriptive information about the one that you clicked on. So this here is a perspective picture and it shows you what the fixtures look like in the space and on the plan. This gives you an overhead plan. You can see that the green fixtures are available for daylight harvesting and the other ones that are not green are not expected to dim. We provide information about these designs in these little tabs here.
So each vignette will give you information about what is the concept behind the design, including the criteria which you see down here and the strategy for accomplishing that concept is listed here in layers of light, so you'll see a relationship by luminaire type. So Luminaire Type A, this is what it's doing for you written in text so that you can understand what the intention is for that type of fixture. Over here, it gives you generic information about the equipment, and then the controls tab simply says, "We will be asking you for controls choices next."
So once you've looked at that information, let's presume that you've taken a look at these different ones. You can say, "Okay, I like that one so I'm gonna pick it." Okay, that's what we're supposed to see. So Template 2, click on that. A very similar type of convention here. Here is the approach strategy and put in little details about those strategies.
Then we have drawings here that are controls type drawings for those who are comfortable with this type of drawing. Not everybody is comfortable with that type of drawing. Some folks are going to rather see something like this, which will give you a very friendly view of what the different control strategies are gonna do in that space. For those of you who are engineers or the more technically oriented, this gives you information about the zones and what the savings opportunities are for these zones.
And so then you pick which template you want and go to next. This gives you a quick little summary and then you confirm that. At this point, you can either add another open plan space or you can go back to the key plan. I'm not gonna go through all of these different spaces here but the flow is the same. The open plan perimeter is set apart as a different space because of the wall washing features there, so that needed to be calculated separately, private offices, corridors. These are the spaces that you could go look at if you wanted to. But we're not going to take the time to do that because we would end up being repetitious.
So rather than that, what I'll do is go to the next screen. And what's happening here is it's taking the options that you pulled and putting it into a report format. So this is automating the information and building a report. There are three different things that show up in these reports. One of them is an energy summary. The energy summary is providing you with information about — I need to make sure this shows up for me. I'm on a different computer here so - okay, the energy summary is going to give you information about the savings. Bear with us while this opens up in PDF format. And this will give you savings about the entire design, both in kWh and in connected load power density, opening as we speak here, I believe. Here we go, okay.
Now obviously this particular one is very simple because we only looked at one design, but you can see the format here. It tells you the space, the vignette that you selected, the controls that you applied, the area, power density, what your baseline was in kWh and what your proposed is, so it shows you what your savings is. And then going back to here, the same process with the vignette summary here and you open it.
And this is going to give you a lot more information. What this will do is it will provide you with a little bit — oh, that's too small. Okay, this will give you information about the material inside of the webtool. The summaries is the first section. The vignette summary section essentially captures everything that you selected exactly as it was shown to you on the screen and the purpose of that of course is so that with this PDF document, you can then send it around to the rest of the folks in your design team and talk about it and have your meetings, your design process meetings, and so you'll be able to see everything that you looked at.
The implementation section of the PDF file gives you much more detail and the vignette implementation section is geared towards the technical practitioner. So the folks that are developing the luminaire schedule for the project or running calculations or doing the lighting layouts, those folks will need more detail, and so this section of this download packet gives you the details that are geared towards the technical audience and the daylighting and control section is pretty self-explanatory. So let me just show you some of what this looks like.
So here you've got the basic information that was in the webtool, same exact information, and I'm gonna find a page that shows you the tabs. Okay, here's what I mean by this section. This packet is laid out with three different sections and so the first tab is the summary. The second tab is the implementation information. The third tab is the control guidance. That helps provide some way of finding information for people who are using the information.
At this point in time with the tool, one of the things that's different is that in the packet here, the luminaire section of the packet implementation, we now start using these little luminaire labels, F11. That will connect to the luminaire schedule so that you can see exactly what type of information is included there, so that's pretty specific. The other thing that we provide is information about the assumption for this set of information.
So here we go. For this particular vignette, these were the assumptions that were used in the modeling process and if your space differs from these conditions here, then you'll have to make some modifications, some tweaks to address your actual conditions. It's very, very important for the design team to understand what was used in the development of the design so we provide that information. Moving very quickly. Sorry about that.
So we provide information about the controls. Here you see these drawings that you saw previously. It just gives you a sense of what's going on in these packets. Control system information, the performance specs for the controls, information about installation and performance and verification, long-term maintenance, etc. So that shows you what is included in a packet.
Last but not least, the luminaire schedule, and this will show you what was included in the design that we developed. So this is generic information and it gives you the basic description. How many lamps in cross section? What were the lamps? Were the specs for the lamps in ballast, and the efficiencies for the luminaries. So that's what you get in the first part of the process.
So now we need to go back to the slides. Oops, I picked the wrong thing. Sorry about that. Oh, it's back here. I'm sorry, folks. I'm trying to find the correct front end here.
There's a bunch of these. Okay, one second here. I'm trying to get to the right desktop. I'm looking at my colleague here and saying, "Where do I go?" There it is. This should be it.
Hey Carol. This is Jenni. We actually have you back at your slides.
Yeah, I'm trying to find the controller here and it's not showing up for me and I don't know why. It keeps doing that. There we go. Found it. Dear me. So I'm back to the content slides. There we go. Finally, all right.
So now that we've seen the best practices portion, you have a bunch of information now on your desktop. You've got download packets, preliminary schedule, a starting point, generic information, and the next question is how do I apply this to my project? And so the first thing that you need to figure out is how does it differ from your actual conditions? And so I've given you a few examples of what kinds of questions you should be asking yourself when you go to apply these solutions.
So one example is what if my reflectances are different? You can see in the packet that we used certain reflectances in order to do the modeling process and so that is important because your reflectances will actually impact how much light you get in your space, so here's an example of that concept. So if you have 80 percent reflectance, 25 percent walls, you will get 16-foot candles on average. But if you have 90 percent ceilings and 60 percent walls, you'll get a lot more light. What's important about this is that you're using the same amount of energy but you're getting more light in the space. So if your space has dark surfaces, then you need to reconsider the advice that we gave you because those surfaces will suck up the light and you won't get the kind of light that you need. So that's one example where you need to pay close attention to applying the guidance for your project.
Another example is the issue of partitions that I mentioned earlier. If you've got very high partitions, then it makes a difference in terms of shadows. So in essence, you're creating little mini rooms here by having very high partitions and that becomes an energy efficiency issue. That's not necessarily something you can control on every project and so what you need to do then is characterize — look at the partition height that we used for our modeling and the partition height that you've got on your actual project, and if you've got higher partitions than what we used, then you need to consider spacing your fixtures more closely together. So there's a second example of something that might be different.
And another example of something that might be different is if you want to substitute different equipment. This is one of those situations where very common in buildings and renovations, you see lots of substitutions. We would urge you to be cautious about substitutions with respect to the generic specs because every choice you make that's different is going to have energy consequences. So if you choose a ballast that is not a high-performance ballast, you will see the energy consequences in your project and you won't save as much energy. That said, there are lots of different style choices, many different manufacturers that you can choose from, all within the generic specifications that we've provided. But obviously if you choose something that has a higher input wattage on your project, that will cost you more energy and that will be a difference from the projection that was provided in the webtool.
And so in addition to that, there are places that you can go in order to get more detailed information to support the design principles, and so here's an example of places where you can go in the Advanced Lighting Guidelines. And if I were to click on this link, it would take me to the page within the ALG that talks about reflectances. So there is an educational opportunity here to learn more about it and we're hoping that as people apply the design guidance, that they will actually come up the learning curve organically on these issues and over time, get more and more comfortable applying the solutions in different types of spaces.
So now what we're going to do is go back to the webtool and show you the energy estimate. So let's assume, for the purposes of the energy estimate, that you have actually completed your design process and go to — I think I've figured out why I screwed up last time. So I'll have to pay more attention so I don't get lost next time coming back.
So we're gonna go to the energy estimate portion of the tool, which means signing in. So here we are at the beginning again and there are two different ways that you can go to the energy estimate. You can either go to where you left off by going through your proposed design and getting to the screen we were at at the end of the last process, at which point you can click from there into a new energy estimate, or you can start a new energy estimate on your own.
And so what I'm gonna do here just for the purposes of explaining, is I'm gonna actually call up an example that I've previously developed because it's easier that way to show you what the energy estimate does. The important thing to keep in mind about the energy estimate is that it's very much like what you do already, that you're putting in your process, in your current process of energy savings estimates. You need to know what is your luminaire schedule, how many fixtures are you going to be using per space, and that sort of thing, so that is what we do. It's loading the instrument right now.
Okay. This is one that I built previously and this is based on an office that I'm sitting in right now. We actually just moved into our office, gosh, about a month ago. And so what this does here is it shows you how to develop an energy estimate. Now importantly, you see there are two choices here and the first one is comparing against an energy code and the other one is an existing conditions baseline. If you want to use an existing conditions baseline, then what you need to do is develop that as an energy estimate first. And so if I wanted to in my prior design project, I could have picked this solution as a baseline and then the webtool would have then compared the savings from my actual conditions to my proposed conditions.
So keep in mind in this drop down menu here, you can pick a whole bunch of different energy codes, but if you want to measure against what's already installed, you would need to first build that project at which point it would be loaded into the menu for you and then you could select existing conditions baseline. You could grab that project and use it as a baseline. And part of the reason for that is because different utility programs, depending on the nature of the program, in some cases, you're gonna want to look at what's currently installed in order to figure out what your incentivized rates would be. In other cases, where you're using a custom rebate or incentive program, then they're more interested in comparing your post design to the existing energy code.
So here is the first screen on the energy estimate and what you do here first is define your spaces. So where I'm sitting now, these are the spaces in my little office suite. There are four of us here in our little office in Massachusetts and we have an open plan space with two different types of offices, a kitchen, a reception, and a conference room. And so what I've put in here is the square footage for each of those and once I've done that, I go next to luminaire schedule and these are the fixture types in this office. Now you can see it's a little confused. This is not a renovated condition here. We have lens 2 x 4's. We have parabolic 2 x 4's. We have paracube 2 x 4's, some of them being all in the same room. So you can imagine that we're very interested in having our own little lighting project here at the earliest possible convenience. We also have some fixtures here which are not really advisable and don't save a whole lot of energy.
So part of what's included here — I'm just gonna go through the categories. You've got your fixture ID, which you can change to be whatever you want; the description of the fixture, which is typed by you; your input wattage; different mounting options here; different source type. As we continue across the screen here, you've got the lamp, the number of lamps per fixture, the ballast, the number of ballasts, the input watts, and any special notes you might want to provide about the ballast. And from there, what we do is we ask you to describe how many luminaries there are per space and what kind of controls you would put in here.
So under the controls menu, there are some options here. Just to give you a sense of how this functions, the estimates behind the scenes here are thoughtful, meaning that if you notice when I picked occupancy center, it grays out the vacancy center. If I unclick that, vacancy center becomes alive again and if I click on the vacancy center, it will gray out the other one. And so the purpose in that is that it is just intelligent enough to stop you from doing something that is extremely unlikely or inadvisable. You wouldn't want to have occupancy centers and vacancy centers in the same space. It's an either/or type of choice.
So these are the control options for space and once you have all of this, it will give you your savings. Now as you can see, the space that we're in is minus 90 percent efficient, so this is one of those spaces where we would really want to do a renovation. And if you compare against this space with the proposed design, then you see in this bar here that it would save lots of energy and that way, you would be able to quantify your estimated savings. You'd be able to take your report and go to your utility program and that same information that's within your report is the same kind of information that's typically required for a utility incentive program. And so what this does is it builds a report and the information is in the form of a spreadsheet and a PDF. With that information, you'll be able to fill your utility incentive program.
So it's taking a few minutes to download here. It's taking a little bit too long. I think what I'm not gonna do is wait for this just because I'm anxious about time a little bit here. So what I'm gonna do instead is get back to the other screen. Okay. I have the same problem I had before. It's not giving me the option to desktop. Okay, there we go. It looks like it was just there.
Carol, do you need a hand getting back?
Yeah, probably. It's really mysterious to me. I'm sorry about that.
Oh, that's okay. We're back on your slides now so if you want to just go ahead — we can advance, if you want to just go ahead and wrap up your last few sides.
Okay. That's the end here. Okay, so you've gotten back to — I just need to be able to see what you're — okay.
Okay, so now we're at — done the demo of the energy estimate and the last thing is conclusion and next steps.
I still can't get to the screen.
Carol, if you just want to speak to the slide. We actually have your Utility and Energy Program slide up.
Okay, Utility and Energy Program. So there are three slides left and what I want to talk about is what we're doing next. So the utility and energy programs connection is something I've talked about several times here. There's a significant shift for utilities to enter into the realm of kWh savings and so that's going to take some time to develop these opportunities. The first step is to do pilot projects using the webtool so that we can see how it works in applications and in practice, and so some of these projects are underway already and we're working closely with the Office of the Future to be doing pilot projects using the webtool.
And from there, what we're developing is pilot programs. What I mean by pilot programs is programs that actually use the webtool as the basis for developing savings. So in that sort of situation, the energy estimate that is derived from the webtool would then provide the basis for the savings, so the kWh estimate and the lighting power density estimate and the equipment quantities and all that information would then be used within a utility or energy program as a basis for savings for the user. And we expect earlier adoption in the high energy cost areas, so the Northeast, Northwest, California, and some of the Midwest markets are places where we're most likely to see the usage of the webtool, and we expect that over time, other locations and regions will follow.
One of the things that's important about this webtool is that it's been a challenge for utility programs to deal with the differentiation between them. So the owners and tenants find themselves in a situation where they have to learn lots of different utility programs depending on where they're located and every project will be located in a different utility region, and so you need to get to know the various different utility programs. That can be daunting for some and in some cases, it's enough of an obstacle where folks don't even avail themselves of the utility savings. In some cases, they will hire a third-party vendor to support them in figuring out how to do that so that the staff or the tenants or the owners don't have to learn the details about every utility program.
And one of the things that we've been told is very attractive about this approach is that by centering on a webtool that provides some consistency in the measurement, that then ends up resulting in national consistency. It supports the model where a larger organization such as Hewlett Packard or IBM or Lowe's or Wal-Mart will have a team that is national and that team would then be able to use this webtool consistently no matter where the project is if there's a utility in that area offering an incentive. So that is useful to those folks.
For the manufacturers, obviously as I stated before, the interest is in figuring out how this webtool connects with products that are on the market and available for purchase. And we're very actively working right now with the National Electrical Manufacturer's Association to figure out how to describe a path to products. There are lots of different ways that that can be done and the exact format is not yet formalized. It will be within the next few months. So we will be providing information about how to specify particular lamps and ballast and fixtures and control solutions, and controls.
So we're working on that now and that's a nontrivial exercise because luminaires and controls in particular, trying to figure out how you place boundaries on those products without being overly constraining and still having it be inclusive across several different manufacturers requires a lot of work on the technical side for us. But the goal is by the time it gets to the user, it will be very simplified.
And last but not least, next steps for owners and tenants and practitioners. We are developing detailed trainings and so the trainings will be offered over the next few months, so keep your eye on your email. We are offering a more detailed technical training that is geared specifically towards practitioners on February 15th, and so that will be a place where we actually walk through specific project case studies and break it down into more detail over a period of a couple of hours. We will also be offering some all day programs which are located in two different cities at this point, small groups, 20 to 25 people, where we will really be doing as much observation as we are teaching. And part of the point of that is to develop improvements to the webtool based on user needs. So we'll be teaching and we'll be listening in those sessions doing usability assessments so we can have a continuous improvement model.
And we are also looking for pilot projects, of course, and especially pilot projects in regions where we have utility partners so we can pair up these pilot projects with the utility program evolution.
Last but not least, we are developing an occupant satisfaction tool for offices. I should revise that to say that we are actually upgrading an existing occupant satisfaction survey tool and that will be available soon, also. And the point of that is to create a way for end users to measure satisfaction associated with these improved conditions. This survey tool will allow the end user to set up a project and send out an email to your employees or to your tenants and then you will be able to access the findings online. And so that automates the process. It makes it very easy for you to capture your situation.
You can use that survey tool to figure out whether people are happy in their existing conditions, which could be the beginning of an improvement process, or you could do a comparison, before and after, or you could compare across your entire portfolio and look at the distinctions between types of equipment that are currently there.
So those are the ends of the slides and we are now to Q&A.
Oh, thank you, Carol. This is Jenni, again. We just have two quick polling questions and then we'll turn it over to Q&A, so thank you very much for your presentation.
The first question should be up now asking what you were hoping to learn from today's webinar. Again, please vote by just clicking on your screen. Great. We'll just give that one more second. Great. Thank you for your participation.
The final question should be up on your screen now asking how satisfied you were with today's webinar, so if you could please vote. We'll leave that up for one more second. Great. Thank you very much.
Now we'll move on to the question and answer session. As we mentioned at the beginning, we ask everybody to submit their questions by clicking on the Q&A on the top bar, typing your question, and then clicking ask. Carol and she's got a couple of folks with her, they will be going through as many questions as time allows. So I'll turn it over now to Carol and I think you have Eric with you, also, to address some questions.
Eric or Carol? Do you want to address any questions?
Sure. This is Eric Richman. I'll go ahead and start with some that have come in that I can address while Carol's looking at the rest of them. One here, "Do projects need to be certified in order to be eligible for the federal lighting tax deduction?" That's of course kind of a different subject but I can tell you based on my experience for the lighting part of the federal tax deduction rule, there are two different parts and the interim or simpler rule that most people are used to, there are no software requirements but there are certification requirements and you'll need to look at what those are. They really have nothing to do with the CLS tool, although the CLS tool can help you get the information you need to go for that federal tax deduction credit. I would recommend that you go to a site like NEMA and they'll have a link to information on those rules and they'll give you the information you need.
Another question here, "Do you recommend that I do analysis on the energy use of my building before deciding to work on my lighting or is it safe to assume that my largest energy use is lighting and work on that?" Lighting is typically not the largest energy use in your building, however because lighting is somewhat easy to retrofit compared to envelope or mechanical issues, sometimes it is the best place to start. So you would definitely want to look at the lighting. If you find that there just really isn't much room for energy savings, then maybe you'd want to focus on envelope or mechanical, but lighting is certainly a first place you should look at for those reasons.
Another question, "Do the building operation hours directly relate to the annual hours used to estimate the kilowatt hour savings?" Yes. That's part of the calculations. When you put in those operating hours, those are used directly to calculate the energy savings because it is on a kilowatt-hours basis.
Another question, "Why is the location and state important data for the webtool?" The current important use for your location is the daylighting calculations, because the sun, of course, sun capability is different in different parts of the country. So when you put that information in, the tool, when it's calculating any potential daylight savings, will take advantage of that and use that calculation.
Carol, did you have some you would like to answer at this point?
Okay. I'm just looking through the list here. "Will this tool work equally well for existing building retrofits and new construction?" When you compare the different types of lighting systems — the different types of building systems, I should say, envelope, HVAC, lighting, lighting is one of those where technically speaking, you could do lighting any time you want, so you could do relighting in an existing building. So from that perspective, the solutions that we provide can be used in any existing building. From the perspective of what is the most likely scenario, we will see a great diversity of application depending on the economics of the situation.
So for instance, if you are in an existing situation and you're planning on staying there, you're not terribly likely to do a retrofit unless you're moving to a new space. So what we'll see for the most part is the relighting solutions will get utilized in the spaces where you're moving into a new space or if you're an owner of a building and you're moving over — you have turn and you have new people coming in and they want a different situation when they move in and they'll get new furniture and you paint the walls and do the carpet. That's a good situation for putting in new fixtures. So in some situations, the solutions will work fairly well for something that is almost like a retrofit, meaning some of our solutions will match your existing housing locations. We do have recessed solutions and some of those recessed solutions would fit quite well with your existing layout scenario.
What we don't do is the, in the purest sense the lamp ballast retrofit, and the reason why we don't offer up those solutions is because, to be frank about it, the ESCO market has already got that really well figured out. So if the only thing that you want to do is a lamp ballast retrofit, you wouldn't need our design guidance for that. You could quantify the savings in the energy estimate portion of the tool for a lamp ballast retrofit. But in terms of design guidance, there really isn't much to say about that that isn't already covered by the ESCO's. So in terms of whether the solutions fit for existing buildings and new construction, they certainly would fit in both situations and the choice that you make depends largely on your circumstance and your economics. So that's one question.
"Does the tool address retrofit redesign and payback consideration?" At this time, we do not have payback inside of the webtool. I can say that it's not for lack of trying and what I mean by that is that anybody who works in this field understands that the actual cost on a per project basis is incredibly varied, and so we did do some initial work on this from a technical perspective, developing a way to characterize payback information. What we found as we did our research and pulled together the initial part of that process is that the payback varies so wildly depending on where you are in the country, how your project is packaged in terms of where you're purchasing from, what your distribution channels are going to be, how large is your project, how many fixtures are you buying? There's so many variables that will impact your payback and add to that the incentives and rebates into that scenario which impacts your payback and you've got a tremendously varied situation.
And what we found was that the variability was so high that it almost made any estimates that we could provide with national data obsolete. So at this time, we don't have payback information in the webtool. It is an ongoing conversation. It will continue to be an ongoing conversation and of course we're interested in feedback and thoughts you may have about that. What we didn't want to do is spend a lot of effort and resources into developing something that didn't stand up to the lab test. We wanted it to be on par in terms of the reality factor. So that's the answer to the question of payback considerations.
Another question is, "Do you recommend that I do analysis of the energy use on my building before deciding to work on my lighting or is it safe to assume that my largest energy use is lighting and work on that?" Well, that's a difficult question to answer from the perspective of not really knowing what the circumstances are. If you've got a situation where you've got old equipment, then you're going to get very significant savings. If you've got T12's that are currently installed with old style ballast, you're going to get huge, huge savings. Even if you've got T8 and electronic ballast that were installed greater than five years ago, you could find that you have significant savings. And if you're willing to use new fixtures, whether it be in existing locations or if you're willing to install new fixtures in new locations, then you'll get significant savings beyond that.
What I can tell you is that inside of the webtool, we have endeavored to develop solutions that are starting at around 30 percent savings and going beyond that. Every time you use the webtool for any particular project, you are in charge of your own choices. So we can't guarantee that somebody will end up with 30 percent or greater savings because each vignette and the way that they're matched up in terms of the square footage per vignette and how that averages out across an entire project will vary every time you use the webtool. So we can't guarantee savings but what we can do is say that our bar, our threshold for development was 30 percent or greater. So from that perspective, I hope that helps you to take a good guess at it. And without knowing the age and the circa of the equipment that's installed, it's difficult to answer that.
I would say that this is a pretty simple tool. This is not one of those tools that is geared towards the experts in the world. This is a tool that's geared towards folks that are working with lighting but that may not necessarily be the very best in field. So what that means is that it's purposely simplified so that you can spend a small amount of time in order to figure out what your savings is likely to be and that will then give you some answers. So if you want to figure out how much it will save you, it's not that much work.
So let's see. I'm looking at this list here. "Do climate zones impact your lighting best practices recommendations?" Tracy, I'm gonna toss this one back to you because you were more involved in the daylighting. Are you there.
Yes, I'm here.
Whoops. There you go.
Oh, sorry about that. Okay, the climate zones do not impact the best practices recommendations at this time. The reason that we enter location is for the daylight energy analysis as far as how much energy you'll be saving based on where your location is. But as far as the lighting recommendations themselves, those are best practices based on IESNA recommendations and they do not vary by location.
All right. Hi, there. I'm going to answer one more and then — okay. "If I use your lighting tool and then go work with an electrical contractor, will these recommendations limit what he or she recommends for my particular situation?" I think what I could say is that because of the fact that it provides guidance and choice from a literal perspective, it would limit your options, but it's not constraining in terms of what types of — it's not gonna limit your options in terms of what type of manufacturer you could work with. It does endeavor to provide a series of different possibilities across all the different types of equipment and so I don't think that you would find yourself not have good options but it does provide a subset of possible options.
I don't know if that really answers the question. I'm just thinking about if you're an electrical contractor. What it will do is it will push you towards the higher performance products. I think that's probably the simplest way to describe it. It will limit your options from the perspective of the really standard practice, "We've been doing the same thing for ten years." type of stuff will not likely be offered up as an option. I think that answers that one.
Okay, now looking for some new questions. Go ahead, Tracy.
If I can add just one thing about climate zones and there's another question regarding heating and cooling savings and whether or not that analysis is included in this webtool. And the answer to that is no. Savings that are shown on the webtool are just lighting energy savings.
Okay, thank you for that. Going to some of the newer questions that have come in here, "Who has access to your project on the site?" When you sign in and you register an account, that registration gives you a password and so you are only allowed access to your information if you have that password. I suppose it would be up to each individual to decide if you want to share projects. Then you could share the password and log in and get access to all the projects that have been built under that idea and that pass code.
"Will the site evolve to include other new lighting technologies?" We are, you could say, a distribution opportunity. We are a guidance portal, if you will. So what that means is that any technology or solution that makes sense in terms of providing energy efficiency and high value would be an option through the Commercial Lighting Solution, subject of course to the process of developing it for release through the webtool. And so that means, yes. We will be having advanced technologies.
In terms for the threshold for what we do and don't include, we want to include technologies that are underutilized and commercialized and make sense and cost effective. We do include solid state lighting solutions and technologies in certain areas but not everywhere. There is a thoughtfulness that applies to the development of these solutions.
So for instance, I can tell you that the solid-state lighting is included as task lighting possibility and down lights. We don't, at this time, have solid state lighting in as a general lighting solution in the overhead areas but over time, of course, solid state lighting will continue to improve and as it passes the threshold to the point where we have comfortability related to risk and cost and empirical results from demonstration projects, then we will be adding those things into the webtool.
Carol, let me also add that for the energy estimator part that you demoed, that doesn't care what technology you use. That's whatever you have in your design. So it's open to anything that you put into your design.
That's a very good point. That's a very good point. But similar to the question about retrofit versus relighting, you can use the energy estimate portion of the tool to compare for a component based solution and you could also input any LED that you want. In the best practices portion of the tool, that's where I was saying that only certain technologies are included.
Someone asked about being near Boston and going to the training solutions. Send me an email directly and I'll get in touch with you, and my email is Carol.Jones@PNL.gov, so feel free to get in touch and I'll let you know about that.
"Have you ever tried this modeling system in a healthcare setting?" We have not yet developed solutions for hospital and that's not gonna be happening in the immediate future. There's a significant — intensive is even a good word — development process involved for creating solutions for healthcare. That was on the table at some point recently. We had started leaning in that direction and the programmatic decision was made that what we wanted to do first was to focus more on deployment of the solutions that we've already got for offices and box retail with a keen interest in making sure that we hear from users to see what we're doing well, what we need to change, what we should add, etc.
So what we're focused on right now is working with the market using the existing solutions and then over time, we'll be adding solutions. That also applies to schools. I guess that applies to any of the other commercial building types. We'll be looking at the question of what is the investment cost versus the usability. So obviously that would mean that something that is more likely to be used that's less expensive to develop is something that would hopefully be done sooner.
Hey, Carol. This is Jenni. We're actually a little bit over time.
Yeah. You might want to just mention one more time — it seemed like there were a couple of questions about accessing the tool and if it was available now. You might want to just mention the URL one more time. We'll put that up there and that people can use it now.
Absolutely, yeah. This is live. It's on the DOE website. The front page is the Commercial Building Energy Alliances and the actual URL is www.LightingSolutions.Energy.gov. And that will bring you to the front page where you can create an account. If you don't have an account yet, you look for the blue bar at the bottom of the green box and you click on "Create one now" and you can start your own account and play around with the webtool.
It looks like we are indeed out of time, so I think we got to most of the questions. I do want to invite anyone who's interested in the webtool, whether it be a training or more information or more background or any questions related to the usage of the tool, definitely get in touch with us. There is a help selection on the webtool, so anybody who needs help from within the webtool, just click on that help menu and you can send us an email. I believe it's something like CLS@help.gov or .PNL.gov or something of that nature, but if you go inside of the webtool and you click on the help button, that will be a way for you to reach out and communicate with the developer so that we can help you if you run into any trouble.
And we always appreciate feedback. We've already done a lot of peer review but there's always more input and we're anxious to hear what you think, what we're doing well and what we need to improve. And I certainly appreciate everybody's time and interest and so I'll turn it over to Jenni to wrap us up.
Great. Thank you so much for your time, Carol, and for your presentation. We'd also like to thank all of you for participating today. Please visit www.buildings.energy.gov/webinars.html for notices of upcoming webinars. You can also access the webinar archives page from this URL and we will have a copy of today's slides and in a few days, we will also post a video of this presentation.
This concludes our presentation today. Thank you and goodbye.
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