Table 4.6. Capacity Additions, Retirements and Changes by Energy Source, 2013 (Count, Megawatts)


Generator Additions Generator Retirements
Energy Source Number of Generators
Generator Nameplate Capacity
Net Summer Capacity Net Winter Capacity Number of Generators Generator Nameplate Capacity Net Summer Capacity Net Winter Capacity
Coal 4 1,813 1,508 1,569 61 6,964 6,291 6,492
Petroleum 27 71 62 66 130 2,027 1,871 1,920
Natural Gas 89 7,509 6,868 7,376 121 6,631 5,843 6,024
Other Gases 4 13 12 12 -- -- -- --
Nuclear -- -- -- -- 4 3,705 3,576 3,601
Hydroelectric Conventional 21 424 413 405 36 168 168 168
Wind 22 859 859 859 2 9 9 9
Solar Thermal and Photovoltaic 259 3,469 3,461 3,440 3 3 3 3
Wood and Wood-Derived Fuels 13 599 548 550 2 19 19 19
Geothermal 10 91 71 72 1 14 11 11
Other Biomass 93 235 205 210 37 44 39 38
Hydroelectric Pumped Storage -- -- -- -- -- -- -- --
Other Energy Sources 7 49 49 49 3 24 24 24
Total 549 15,131 14,054 14,606 400 19,606 17,852 18,308

 


Other Changes to Existing Capacity
Energy Source  
Generator Nameplate Capacity
Net Summer Capacity Net Winter Capacity
Coal   -1,375 -1,591 -1,546
Petroleum   -2,040 -1,835 -1,974
Natural Gas   1,333 2,000 1,609
Other Gases   186 150 155
Nuclear   190 931 399
Hydroelectric Conventional   84 218 225
Wind   232 48 135
Solar Thermal and Photovoltaic   -8 -6 2
Wood and Wood-Derived Fuels   378 317 319
Geothermal   -36 -45 -37
Other Biomass   115 67 62
Hydroelectric Pumped Storage   744 21 83
Other Energy Sources   699 553 583
Total   502 829 15

 

Notes: Coal includes anthracite, bituminous, subbituminous, lignite, and waste coal, coal synfuel, refined coal, and coal-derived synthesis gas.
Petroleum includes distillate fuel oil (all diesel and No. 1, No. 2, and No. 4 fuel oils), residual fuel oil (No. 5 and No. 6 fuel oils and bunker C fuel oil), jet fuel, kerosene, petroleum coke (converted to liquid petroleum, see Technical Notes for conversion methodology), waste oil, synthetic gas, and propane.
Other Gases also includes blast furnace gas and other manufactured and waste gases derived from fossil fuels.
Hydroelectric Conventional capacity includes conventional hydroelectric power excluding pumped storage facilities.
Wood and wood-derived fuels include wood/wood waste solids (including paper pellets, railroad ties, utility poles, wood chips, bark, and wood waste solids), wood waste liquids (red liquor, sludge wood, spent sulfite liquor, and other wood-based liquids), and black liquor.
Other Biomass include municipal solid waste, landfill gas, sludge waste, agricultural byproducts, other biomass solids, other biomass liquids, and other biomass gases (including digester gases, methane, and other biomass gases).
Other Energy Sources include batteries, hydrogen, purchased steam, sulfur, tire-derived fuels and other miscellaneous energy sources.
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.
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.
Other Changes to Existing Capacity reflect uprates, derates, repowerings, and changes to previously reported generator capacity.

Source: U.S. Energy Information Administration, Form EIA-860, 'Annual Electric Generator Report.'