Savings from energy efficient windows: Current and future savings from new fenestration technologies in the residential market
Heating and cooling energy lost through windows in the residential sector (estimated at two-thirds of the energy lost through windows in all sectors) currently accounts for 3 percent (or 2.8 quads) of total US energy use, costing over $26 billion annually in energy bills. Installation of energy-efficient windows is acting to reduce the amount of energy lost per unit window area. Installation of more energy efficient windows since 1970 has resulted in an annual savings of approximately 0.6 quads. If all windows utilized existing cost effective energy conserving technologies, then residential window energy losses would amount to less than 0.8 quads, directly saving $18 billion per year in avoided energy costs. The nationwide installation of windows that are now being developed could actually turn this energy loss into a net energy gain. Considering only natural replacement of windows and new construction, appropriate fenestration policies could help realize this potential by reducing annual residential window energy losses to 2.2 quids by the year 2012, despite a growing housing stock.
- Research Organization:
- Lawrence Berkeley Lab., CA (United States)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 6214476
- Report Number(s):
- LBL-33956; ON: DE93016711
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320107* -- Energy Conservation
Consumption
& Utilization-- Building Systems-- (1987-)
BUILDINGS
COVERINGS
EFFICIENCY
ENERGY CONSERVATION
ENERGY EFFICIENCY
ENERGY LOSSES
ENERGY SYSTEMS
FORECASTING
GLAZING
HEAT LOSSES
LOSSES
OPENINGS
RESIDENTIAL BUILDINGS
RESIDENTIAL SECTOR
SPACE HVAC SYSTEMS
THERMAL INSULATION
WINDOWS
320107* -- Energy Conservation
Consumption
& Utilization-- Building Systems-- (1987-)
BUILDINGS
COVERINGS
EFFICIENCY
ENERGY CONSERVATION
ENERGY EFFICIENCY
ENERGY LOSSES
ENERGY SYSTEMS
FORECASTING
GLAZING
HEAT LOSSES
LOSSES
OPENINGS
RESIDENTIAL BUILDINGS
RESIDENTIAL SECTOR
SPACE HVAC SYSTEMS
THERMAL INSULATION
WINDOWS