ENERGY STAR LABELING PROGRAMS -- Individual Benefits

Annual Energy and Dollar Savings

1) Copier savings are for models meeting the Tier I standards, in effect through 1997. Tier 2 standards will increase the savings per unit.
2) Gas-fired heat pump is compared to gas furnace and central air conditioner. Geothermal heat pump is compared to air-source heat pump
and electrice water heater. Annual bill savings are relative to standard new unit. Office equipment savings assume average commercial
usage and electricity price. Previously published EPA fact sheets for office equipment assume all computers are on 24 hrs/day. Here we
assume a more typical usage pattern, with most PCs on only 9.5 hrs/day, and only 25% left on all the time. For HVAC and New Homes,
the standard energy bills are based on 1990 RECS consumption data. Exit signs savings are compared to standard incandescent fixture.
3) Typical lifetime (years): computers and faxes = 4; laser printers = 5, copiers-6 gas furnaces-18, central air conditioners = 14,
air source heat pumps = 12, geothermal and gas-fired heat pumps = 15, boilers - 18, duct sealing-20, thermostats- 15, exit signs= 10,
homes-30.

Chart 3B

ENERGY STAR LABELING PROGRAMS -- Individual benefits over product lifetime
Benefits that a purchaser will realize over the lifetime of their ENERGY STAR product
Equipment Type

Lifetime Energy Standard Lifetime Energy Bill Savings (2)

Lifetime Environmental Benefits

(CO2 Equivalent)

Saving Compared

Lifetime

Undiscounted Discounted

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1) 16% of existing homes have a gas furnace and central air conditioning (RECS Housing Characteristics 1993, DOE/EIA-0314(93)).

2) The national average annual household energy bill is $1300 (Based on Household Energy Consumption and Expenditures 1990, DOE/EIA-0321(90), Feb 1993)
A decrease of $280 represents a 22% savings.

3) Annual bill savings are relative to standard new unit. Office equipment savings for a home office assume average commercial usage but the residential electricity price.
Note that EPA fact sheets for office equipment assume all computers are on 24 hrs/day. Here we assume a more typical usage pattern,
with most PCs on only 9.5 hrs/day, and only 25% left on all the time.

4) Typical lifetime (years): computers and faxes = 4; laser printers - 5, copiers = 6 gas furnaces= 18, central air conditioners = 14,

air source heat pumps = 12, geothermal and gas-fired heat pumps 15, boilers 18, duct sealing -20, thermostats 15, exit signs = 10,
hornes - 30.

5) Savings are discounted using a 4% discount rate.

6) It is assumed that the programmable thermostat is installed before Energy Star Furnace and Central Air Conditioner are purchased. The savings attributable to the thermostat will reduce the savings due to the HVAC equipment by 25%. This is reflected in total houschold savings.

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Chart 4B

ENERGY STAR LABELING PROGRAMS -- Typical savings for homes with a gas furnace and room air conditioning
Benefits that a purchaser will realize over the lifetime of their ENERGY STAR product

Equipment Type

Bill Savings

Saving over

(3)

Unit Life (4)

Discounted
Saving over
Unit Life (5)

760

86

1,900

0.90

0.089

1) 14% of existing homes have a gas furnace and room air conditioning (RECS Housing Characteristics 1993, DOE/EIA-0314(93)) Total household savings shown assume only 1 room air conditioning unit (33% of homes with room air have 2 or more units (ibid)).

2) The national average annual household energy bill is $1300 (Based on Household Energy Consumption and Expenditures 1990, DOE/EIA-0321(90), Feb 1993)
A decrease of $250 represents a 19% savings.

3) Annual bill savings are relative to standard new unit. Office equipment savings for a home office assume average commercial usage but the residential electricity price.
Note that EPA fact sheets for office equipment assume all computers are on 24 hrs/day Here we assume a more typical usage pattern,
with most PCs on only 9.5 hrs/day, and only 25% left on all the time.

4) Typical lifetime (years): computers and faxes = 4; laser printers = 5, copiers = 6 gas furnaces=18, central air conditioners - 14,

air source heat pumps = 12, geothermal and gas-fired heat pumps 15, boilers = 18, duct sealing -20, thermostats 15, exit signs = 10,
homes-30.

5) Savings are discounted using a 4% discount rate.

6) It is assumed that the programmable thermostat is installed before Energy Star Furnace is purchased. The savings attributable to the thermostat will reduce the savings due to the furnace by 25%. This is reflected in total household savings.

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Chart 4C

ENERGY STAR LABELING PROGRAMS - Typical savings for homes with an air-source heat pump
Benefits that a purchaser will realize over the lifetime of their ENERGY STAR product

1) 8% of existing homes have an air source heat pump (RECS Housing Characteristics 1993, DOE/EIA-0314(93)).
2) The national average annual household energy bill is $1300 (Based on Household Energy Consumption and Expenditures 1990, DOE/EIA-0321(90), Feb 1993)
A decrease of $280 represents a 22% savings.

3) Annual bill savings are relative to standard new unit. Office equipment savings for a home office assume average commercial usage but the residential electricity price.

Note that EPA fact shoots for office equipment assume all computers are on 24 hrs/day. Here we assume a more typical usage pattern,
with most PCs on only 9.5 hrs/day, and only 25% left on all the time.

4) Typical lifetime (years): computers and faxes = 4; laser printers = 5, copiers = 6 gas furnaces= 18, central air conditioners = 14,

air source heat pumps 12, geothermal and gas-fired heat pumps = 15, boilers = 18, duct scaling-20, thermostats = 15, exit signs = 10,
homes - 30.

5) Savings are discounted using a 4% discount rate.

6) It is assumed that the programmable thermostat is installed before Energy Star air-source heat pump is purchased. The savings attributable to the thermostat will
reduce the savings due to the heat pump by 25%. This is reflected in total household savings.

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