Energy efficiency and electric motors
The Edison Electric Institute and the Department of Commerce reported that, in 1972, the commercial and industrial sectors of the U.S. economy consumed about 920 billion kWh of electrical energy. Of this, about 60 percent was used to power electric motors in industrial and commercial process equipment. The underlying hypothesis of this investigation is that efficiency ratings are not being given proper consideration in the selection and purchase of electric motors. Specifically, it is proposed that a life-cycle cost analysis from the user's point of view may often dictate the selection of more-efficient, albeit more-expensive, models. It is further proposed that, for particular pieces of equipment, efficiency standards may be established in the name of energy conservation without unreasonably affecting equipment performance or cost. This study concerned 5 tasks. Task I, equipment characterization, was concerned with standard and built-in electric motors applied to commercial and industrial process equipment and included AC single-phase and AC polyphase (squirrel-cage, wound-rotor, synchronous); and DC (shunt-wound, series-wound, compound-wound). Task II, Market characterization, identified the basis of motor choice by users. Task III traced the historical progression of motor efficiencies and projected future trends. Task IV assessed technological and economical constraints, while Task V developed policy option scenarios.
- Research Organization:
- Little (Arthur D.), Inc., Cambridge, Mass. (USA)
- OSTI ID:
- 6946600
- Report Number(s):
- HCP/M50217-01
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
291000* -- Energy Planning & Policy-- Conservation
296000 -- Energy Planning & Policy-- Electric Power
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320100 -- Energy Conservation
Consumption
& Utilization-- Buildings
320303 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
BUILDINGS
COMMERCIAL BUILDINGS
COMMERCIAL SECTOR
CONSUMPTION RATES
COST
DISTRIBUTION
ECONOMIC ANALYSIS
ECONOMICS
ECONOMY
EFFICIENCY
ELECTRIC MOTORS
ELECTRIC POWER
ELECTRICAL EQUIPMENT
ENERGY CONSERVATION
ENERGY EFFICIENCY
ENERGY MANAGEMENT
EQUIPMENT
GOVERNMENT POLICIES
INDUSTRY
LIFE-CYCLE COST
MANAGEMENT
MOTORS
POWER
POWER GENERATION
STANDARDS