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Title: Hydroelectric plant construction cost and annual production expenses, 1977: twenty-first annual supplement

Technical Report ·
OSTI ID:6351814

This is the Twenty-First Annual Supplement to the initial publication S-130, Hydroelectric Plant Construction Cost and Annual Production Expenses. This supplement presents detailed data for 1977 on plant investment, annual production expenses, and related information for 436 selected major hydroelectric plants. Of these, 430 are in the contiguous U.S., three in Alaska, and three in Puerto Rico. The initial publication covered 1953--1956. A total of 1,145 hydroelectric plants owned and operated by electric utilities in the U.S. produced 220.4 billion kWh during calendar year 1977, or 10.4% of the total electric utility net generation of 2,124.1 billion kWh for that year. The installed capacity for these conventional and pumped-storage hydroelectric plants at the end of 1977 was 68,305 MW, 12% of the total electrical-utility-generating capacity of 557,012 MW. The total number of hydroelectric plants had decreased during the past ten years as older, small and generally less-efficient plants have been taken out of service in greater numbers than new installations have been constructed. However, installed capacity has increased 42% during that period, while net generation has decreased -0.3%. The decrease in 1977 in power production reflects the effects of the drought in California, Washington, and Oregon. The hydroelectric production in these states dropped 31.3% in 1977.

Research Organization:
Department of Energy, Washington, DC (USA). Energy Information Administration
OSTI ID:
6351814
Report Number(s):
DOE/EIA-0171
Country of Publication:
United States
Language:
English