Table 4.6. Utility-Scale Capacity Additions, Retirements and Changes by Energy Source, 2023 (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 -- -- -- -- 26 10,237.5 9,224.9 9,304.4
Petroleum 25 51.5 51.4 51.4 82 310.4 271.2 319.3
Natural Gas 104 9,728.4 8,701.3 9,176.4 71 5,891.8 5,128.0 5,367.2
Other Fossil Gas -- -- -- -- 3 35.0 30.0 33.0
Nuclear 1 1,114.0 1,114.0 1,114.0 -- -- -- --
Hydroelectric Conventional 4 24.4 24.4 24.4 10 50.6 49.7 57.2
Wind 39 6,635.2 6,586.4 6,586.4 11 48.0 40.9 42.4
Solar Thermal and Photovoltaic 527 19,274.0 18,887.6 18,298.8 112 59.1 59.1 58.6
Wood and Wood-Derived Fuels -- -- -- -- 15 308.8 240.0 241.9
Geothermal 5 122.0 85.0 122.0 3 71.0 46.8 71.0
Other Biomass 3 5.7 5.1 5.1 44 144.1 135.6 138.0
Hydroelectric Pumped Storage -- -- -- -- -- -- -- --
Other Energy Sources 130 6,926.5 6,862.8 6,862.8 5 11.7 11.7 11.7
Total 838 43,881.7 42,318.0 42,241.3 382 17,168.0 15,237.9 15,644.7

 


Other Changes to Existing Capacity
Energy Source  
Generator Nameplate Capacity
Net Summer Capacity Net Winter Capacity
Coal   -2,303.7 -2,104.1 -2,022.1
Petroleum   -5,233.3 -4,757.4 -4,697.0
Natural Gas   977.0 67.8 1,067.2
Other Fossil Gas   174.7 168.6 166.9
Nuclear   125.6 -60.7 -76.8
Hydroelectric Conventional   -60.8 -147.9 -169.2
Wind   -624.5 -602.0 -602.0
Solar Thermal and Photovoltaic   147.5 155.4 195.3
Wood and Wood-Derived Fuels   112.4 128.6 129.8
Geothermal   -6.7 9.0 11.0
Other Biomass   -67.8 -63.4 -63.7
Hydroelectric Pumped Storage   162.0 103.5 238.1
Other Energy Sources   154.0 161.7 144.0
Total   -6,443.6 -6,940.9 -5,678.5

 

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 Fossil Gas includes gaseous propane, blast furnace gas, other manufactured and waste gases derived from fossil fuels other than hydrogen.
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 hydrogen, non-biogenic municipal solid waste, batteries, purchased steam, sulfur, tire-derived fuel, 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.
* = Value is less than half of the smallest unit of measure.

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