Cost-effectiveness of single and multiple CACS retrofit actions in multifamily apartment buildings

Technical Report · Sat Mar 01 04:00:00 EST 1986

OSTI ID:6025170

Nicol, J L; Stovall, T K

This report assesses the cost-effectiveness of energy conservation measures in apartment buildings in varying climatic regions. Five measures - roof insulation, wall insulation, storm windows, caulking and weatherstripping, and night setback/setup of thermostats - were considered in great detail; other measures, such as heating and cooling equipment modifications, were considered in a more limited fashion. In general, payback periods for measures tended to increase with decreasing heating degree days and were usually lower for a high-rise building than for a low-rise building. When electric demand charges were considered, the payback periods were slightly shorter. Energy savings for storm windows and caulking and weatherstripping were strongly affected by the assumed infiltration reduction. Caulking and weatherstripping appeared to be cost-effective in most of the climates considered. Wall insulation was only cost-effective when added incrementally to prerequired exterior wall changes. The interaction among multiple measures installed together did not greatly alter the cost-effectiveness of the measures.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6025170
• Report Number(s): ORNL/CON-191; ON: DE86008941
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320101* -- Energy Conservation
Consumption
& Utilization-- Residential Buildings-- (-1987)
AIR INFILTRATION
APARTMENT BUILDINGS
BUILDINGS
CLIMATES
COOLING LOAD
COST ESTIMATION
DEMAND
ENERGY CONSERVATION
ENERGY DEMAND
ENERGY SYSTEMS
HEATING LOAD
PAYBACK PERIOD
RESIDENTIAL BUILDINGS
SPACE HVAC SYSTEMS
THERMAL INSULATION
WEATHERIZATION