Measured energy savings in retrofitted multifamily buildings

Conference · Wed Jan 01 04:00:00 EST 1986

OSTI ID:5762427

Goldman, C A; Greely, K M

Measured data on the energy savings and cost-effectiveness of conservation measures and practices installed in existing multifamily buildings are compiled and analyzed for over 100 buildings. Factors that explain the range in energy savings are analyzed including energy use before the retrofit, the level of investment, and choice of measures. Energy savings achieved are typically 10 to 25% of pre-retrofit energy use although large variations are observed in energy savings and in costs per unit of energy saved. The median retrofit investment in multifamily buildings is approx.$530 per unit. Many conservation investments are attractive investments from a building owner's perspective: the median real rate of return for buildings in this study is 22%. Preliminary results also suggest that some envelope measures (e.g., ''shell'' packages and window measures) have longer payback periods than many of the heating system retrofit strategies.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5762427
• Report Number(s): LBL-20874; EEB-BED-86-01; CONF-860303-5; ON: DE86009927
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320101* -- Energy Conservation
Consumption
& Utilization-- Residential Buildings-- (-1987)
APARTMENT BUILDINGS
BUILDINGS
COST
ENERGY CONSERVATION
ENERGY CONSUMPTION
MONITORING
RESIDENTIAL BUILDINGS
RETROFITTING