Commercial Building Energy Asset Score Features
The Asset Scoring Tool evaluates buildings by use type. The initial version of the Asset Scoring Tool included: office, school, retail, and unrefrigerated warehouse buildings. Phase II currently under development, which will be used for the 2013 Pilot, includes library, lodging, multi-family housing, and courthouse buildings, as well as mixed-use types of buildings that incorporate Phase I and II. You can enter small and large commercial buildings, and an Asset Score will be equally applicable to new and existing buildings.
You can enter these building characteristics:
- General information—number of floors, footprint dimension, orientation, and use type
- Envelope components—roof, exterior wall, and floor types and insulation levels
- Fenestration—skylights, windows, and shading
- Lighting fixtures—fixture types, number of fixtures or % of served floor area, and lighting controls
- Mechanical components—cooling and heating types and equipment efficiency
- Service water heating—fuel type, distribution type, and equipment efficiency
- Operations (NOT used for scoring purpose)—electric/gas load, occupants, set points, and operating hours
The Asset Scoring Tool will generate an Asset Score that will include physical characteristics of the building as built and its overall energy efficiency, independent of occupancy and operational choices. The score is displayed in the Asset Score Report, which includes the following information:
- Basic building information, including property address, year built, climate zone, building type, year the energy Asset Score is issued
- Source energy use intensity and the corresponding score
- Potential source energy use and score after the identified upgrades are completed
- Energy savings associated with the upgrades and potential cost savings based on regional average energy cost
- Source and site energy use breakdown by end use
- System-level (envelope components, lighting, mechanical and service hot water systems) evaluations
- Identified improvement opportunities
- List of building asset properties (used in energy modeling)
Generating an Asset Score
The Asset Scoring Tool uses EnergyPlus as the centralized energy modeling engine along with capabilities of the Facility Energy Decision System (FEDS). Users do not have to be familiar with either of these tools because they only need to enter a very limited set of building data into the intuitive Asset Score user interface in order to develop an Asset Score for their building.
The primary metric used to generate the Asset Score is source energy use intensity. Learn more about the scoring method in the Program Overview and Technical Protocol.