What is the Energy Performance Score?
The Energy Performance Score calculation is based on a home energy assessment performed by a certified EPS analyst that has been trained and qualified to conduct an EPS audit.
How is the Energy Score Calculated?
The energy score is based on a home's shape, size, insulation levels, air leakage, heating and cooling systems, major appliances, lighting, and hot water heating. Occupancy, behavior, indoor temperature, and regional weather are standardized to calculate normal energy use. A home’s actual energy use will vary with behavior, weather, and changes to the home.
I Value: Good, green choices
Customer name: Allyson
Year home was built & neighborhood: 1910, Washington Park
Work done:
Air sealing, insulation, weather stripping, venting, drainage, and installation of a ductless heat pump
Value addressed through upgrade:
“We know we’ve added value to the house and made good, green choices in the process.”
» Read more about my upgrade in CPW's Blog!
Before & after EPS scores:
CARBON OUTPUT:
Before: 8.6 tons/yr | After: 5.8 tons/yr
ENERGY USE:
Before: 24,000 KWh/yr | After: 10,000 KWh/yr
ANNUAL SAVINGS AFTER UPGRADE: $1017!
ENERGY SCORE
This score measures the estimated total energy use (electricity, natural gas, propane, heating oil) of this home for one year. The lower the score, the less energy required for normal use. Actual consumption and costs may vary. Measured in kilowatt hours per year (KWh/yr).
CARBON SCORE
This score measures the total carbon emissions based on the annual amounts, types, and sources of fuels used in this home. The lower the score, the less carbon is released into the atmosphere to power this home. Measured in metric tons per year (tons/yr).
I Value: Warmth & Comfort
Customer name: Daimian
Year home was built & neighborhood: 1918, Rainier Beach
Work done:
Replaced baseboard electric heaters, pellet stove & space heaters with ductless heat pump
Value addressed through upgrade:
“I value not having to brace for the bitter cold as I open the bedroom door to the rest of the house in the morning!”
» Read more about my upgrade in CPW's Blog!
Before & after EPS scores:
CARBON OUTPUT:
Before: 10 tons/yr | After: 6.7 tons/yr
ENERGY USE:
Before:: 17,000 KWh/yr | After: 11,000 KWh/yr
SAVINGS AFTER UPGRADE: $389!
ENERGY SCORE
This score measures the estimated total energy use (electricity, natural gas, propane, heating oil) of this home for one year. The lower the score, the less energy required for normal use. Actual consumption and costs may vary. Measured in kilowatt hours per year (KWh/yr).
CARBON SCORE
This score measures the total carbon emissions based on the annual amounts, types, and sources of fuels used in this home. The lower the score, the less carbon is released into the atmosphere to power this home. Measured in metric tons per year (tons/yr).
I Value: Using less energy and resources
Customer name: Wendy
Year home was built & neighborhood: 1919, Dunlap
Work done:
Attic insulated, Bathroom fan connected, Recessed lighting sealed, Seal duct work, Insulate walls, Insulate foundation
Value addressed through upgrade:
“I value that I am using less energy and resources while actually being comfortable in my home. Phenomenal!”
» Read more about my upgrade in CPW's Blog!
Before & after EPS scores:
CARBON OUTPUT:
Before: 9 tons/yr | After: 6.6 tons/yr
ENERGY USE:
Before: 33,000 KWh/yr | After: 20,000 KWh/yr
ENERGY SCORE
This score measures the estimated total energy use (electricity, natural gas, propane, heating oil) of this home for one year. The lower the score, the less energy required for normal use. Actual consumption and costs may vary. Measured in kilowatt hours per year (KWh/yr).
CARBON SCORE
This score measures the total carbon emissions based on the annual amounts, types, and sources of fuels used in this home. The lower the score, the less carbon is released into the atmosphere to power this home. Measured in metric tons per year (tons/yr).
We Value: Investing in the right options
for the long-term
Customer name: Renee & Alex
Year home was built & neighborhood: 1912, Lakewood Seward Park
Work done:
Replaced oil furnace with heat pump, installed heat pump hot water heater, air sealing, weather stripping, installed storm windows
Value addressed through upgrade:
“Investing in systems and approaches that will save money and energy over the long run…so it gives a sense of doing the right thing for our house and the world.”
Before & after EPS scores:
CARBON OUTPUT:
Before: 9.3 tons/yr | After: 5.8 tons/yr
ENERGY USE:
Before: 25,000 KWh/yr | After: 10,000 KWh/yr
SAVINGS AFTER UPGRADE: $1274!
ENERGY SCORE
This score measures the estimated total energy use (electricity, natural gas, propane, heating oil) of this home for one year. The lower the score, the less energy required for normal use. Actual consumption and costs may vary. Measured in kilowatt hours per year (KWh/yr).
CARBON SCORE
This score measures the total carbon emissions based on the annual amounts, types, and sources of fuels used in this home. The lower the score, the less carbon is released into the atmosphere to power this home. Measured in metric tons per year (tons/yr).
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