Table 4.4. Existing Capacity by Producer Type, 2014 (Megawatts)

Producer Type Number of Generators Generator Nameplate Capacity Net Summer Capacity Net Winter Capacity
Electric Power Sector
Electric Utilities 9,510 675,675.4 616,631.5 637,857.0
Independent Power Producers, Non-Combined Heat and Power Plants 6,975 423,782.6 387,561.6 401,581.5
Independent Power Producers, Combined Heat and Power Plants 559 37,890.2 33,362.6 35,972.8
Total 17,044 1,137,348.2 1,037,555.7 1,075,411.3
Commercial and Industrial Sectors
Commercial Sector 1,085 4,123.4 3,695.4 3,843.6
Industrial Sector 1,616 31,105.8 27,171.1 28,773.6
Total 2,701 35,229.2 30,866.5 32,617.2
All Sectors
Total 19,745 1,172,577.4 1,068,422.2 1,108,028.5

See Glossary reference for definitions.
Totals may not equal sum of components because of independent rounding.
In the case of some wind, solar and wave energy sites, the capacity for multiple generators is reported in a single generator record and is presented as a single generator in the generator count.
Capacity by energy source is based on the capacity associated with the energy source reported as the most predominant (primary) one, where more than one energy source is associated with a generator.
Source: U.S. Energy Information Administration, Form EIA-860, 'Annual Electric Generator Report.'