Energy Cost Calculator for Commercial Boilers (Closed Loop, Space Heating Applications Only)

Vary equipment size, energy cost, hours of operation, and /or efficiency level.
INPUT SECTION
Input the following data (if any parameter is missing, calculator will set to default value).				Defaults
Project Type				New Installation
Deliverable Fluid				Water
Fuel Used				Gas
Existing Capacity *		MBtu/h		—
Existing Thermal Efficiency *		% Et		—
New Capacity		MBtu/h**		5000 MBtu/h
New Thermal Efficiency		% Et		80% Et
Energy Cost		$ per		$0.60 per therm
Quantity of Boilers to be Purchased		unit(s)		1 unit
Annual Hours of Operation***		hours		1500 hours
* Existing values should only be entered when Project Type is a replacement. 1 MBtu/h = 1000 Btu/h; 1 Therm = 100,000 Btu; 1.4 Therms = 140,000 Btu * Value entered should be equivalent full load hours (e.g., 1000 hours @ 50% load equals 500 hours).
OUTPUT SECTION
Performance per Boiler	Your Choice	Existing Boiler	Base Model	FEMP Recommended Level	Best Available
Thermal Efficiency	Et
Annual Energy Use
Annual Energy Costs	$	$	$	$	$
Lifetime Energy Costs	$	$	$	$	$
Lifetime Energy Cost Savings	$	$	$	$	$
Lifetime Energy Cost Savings for Boiler(s)	$	$	$	$	$
Your selection of a MBtu/h boiler will have an energy cost savings of $ over an estimated life of 25 years as compared to the base model.
Assumptions $0.06/kWh is the Federal average electricity price in the U.S. $0.60/therm is the Federal average gas price in the U.S. $0.66/gallon is the Federal average fuel oil price in the U.S. Future electricity price trends and a discount rate of 3.2% are based on Federal guidelines. Lifetime energy cost is the sum of the discounted value of annual energy costs based on assumed boiler life of 25 years. The average heating value for No. 2 oil is 140,000 Btu/gallon.
Disclaimer This cost calculator is a screening tool that estimates a product's lifetime energy cost savings at various efficiency levels. Maintenance and installation costs do not vary significantly among the same product having different efficiencies; so, these costs are not included in this calculator tool. For a detailed life-cycle cost analysis, FEMP has developed a tool called Building Life-Cycle Cost (BLCC). This downloadable tool allows the user to vary interest rates, installation costs, maintenance costs, salvage values, and life expectancy for a product or an entire energy project.

Existing Capacity in million BTUs per hour. Existing values should only be entered when Project Type is a replacement. Existing Thermal Efficiency percent of existing thermal. Existing values should only be entered when Project Type is a replacement. New Capacity in million BTUs per hour. 1 MBtu/h = 1000 Btu/h; 1 Therm = 100,000 Btu; 1.4 Therms = 140,000 Btu. Default is 5000 MBtu/h New Thermal Efficiency percet of existing thermal. Default is 80% Et Energy Cost per therms. Default is $0.60 per therm Quantity of Boilers to be Purchased in units. Default is 1 unit Annual Hours of Operation. Value entered should be equivalent full load hours (e.g., 1000 hours @ 50% load equals 500 hours. Default is 1500 hours Thermal Efficiency your choice existing thermal Thermal Efficiency existing boiler Thermal Efficiency base model Thermal Efficiency FEMP recommended level Thermal Efficiency best available Annual Energy Use therms your choice Annual Energy Use therms existing boiler Annual Energy Use therms base model Annual Energy Use therms FEMP recommended level Annual Energy Use therms best available Annual Energy Costs your choice Annual Energy Costs existing boiler Annual Energy Costs base model Annual Energy Costs FEMP recommended level Annual Energy Costs best available Lifetime Energy Costs your choice Lifetime Energy Costs existing boiler Lifetime Energy Costs base model Lifetime Energy Costs FEMP recommended level Lifetime Energy Costs best available Lifetime Energy Cost Savings your choice Lifetime Energy Cost Savings existing boiler Lifetime Energy Cost Savings base model Lifetime Energy Cost Savings FEMP recommended level Lifetime Energy Cost Savings best available Lifetime Energy Cost Savings for quantity of Boiler(s) your choice Lifetime Energy Cost Savings for quantity of Boiler(s) existing boiler Lifetime Energy Cost Savings for quantity of Boiler(s) base model Lifetime Energy Cost Savings for quantity of Boiler(s) FEMP recommended level Lifetime Energy Cost Savings for quantity of Boiler(s) best available Lifetime Energy Cost Savings for quantity of Boiler(s) best available Your selection of a million BTUs per hour boiler will have an energy cost savings of $ over an estimated life of 25 years as compared to the base model.

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