Electric Power Monthly

Data for March 2017  |  Release Date: May 25, 2017  |  Next Release: June 23, 2017 
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Table 6.1. Electric Generating Summer Capacity Changes (MW), February 2017 to March 2017





As of End of February 2017 Activity During March 2017 as Reported to EIA As of End of March 2017 Net Change in Capacity - Current Month and Prior Periods Changes in and Total Net Summer Capacity -- Outlook Based on Reports to EIA
Planned Capacity Additions Planned Capacity Reductions Planned Net Change Planned Total Net Summer Capacity
Technology Capacity Source Total In-Service Capacity Actual Capacity Additions Actual Capacity Reductions Total In-Service Capacity Current Month Year to Date Past 12 Months Next Month Next 12 Months Next Month Next 12 Months Next Month Next 12 Months At End of Next Month At End of Next 12 Months
......... Onshore Wind (Summer Capacity) Utility Scale Facilities 81950.0 1083.2 5.0 83028.2 1078.2 1746 9622.9 314.2 5104 0 30 314.2 5074 83342.4 88102.2
......... Offshore Wind (Summer Capacity) Utility Scale Facilities 29.3 0.0 0.0 29.3 0 0 29.3 0 0 0 0 0 0 29.3 29.3
...... Wind (Summer Capacity) Utility Scale Facilities 81979.3 1083.2 5.0 83057.5 1078.2 1746 9652.2 314.2 5104 0 30 314.2 5074 83371.7 88131.5
......... Solar Photovoltaic Utility Scale Facilities 20327.7 453.7 16.4 20765.0 437.3 994.7 8181.9 623.9 4893.2 0 0 623.9 4893.2 21388.9 25658.2
......... Solar Thermal without Energy Storage Utility Scale Facilities 1352.5 0.0 0.0 1352.5 0 0 0 0 0 0 0 0 0 1352.5 1352.5
......... Solar Thermal with Energy Storage Utility Scale Facilities 405.4 0.0 0.0 405.4 0 0 0 0 0 0 0 0 0 405.4 405.4
...... Solar Subtotal Utility Scale Facilities 22085.6 453.7 16.4 22522.9 437.3 994.7 8181.9 623.9 4893.2 0 0 623.9 4893.2 23146.8 27416.1
...... Conventional Hydroelectric Utility Scale Facilities 79985.8 32.2 147.9 79870.1 -115.7 -115.3 33.9 0.5 316.1 0 213 0.5 103.1 79870.6 79973.2
......... Wood/Wood Waste Biomass Utility Scale Facilities 8943.3 161.2 39.3 9065.2 121.9 121.9 109.9 0 49 0 0 0 49 9065.2 9114.2
......... Landfill Gas Utility Scale Facilities 2128.6 18.3 53.4 2093.5 -35.1 -23 6.3 4 9.7 0 2.3 4 7.4 2097.5 2100.9
......... Municipal Solid Waste Utility Scale Facilities 2247.3 0.0 0.0 2247.3 0 0.2 0.2 0 0 0 13.6 0 -13.6 2247.3 2233.7
......... Other Waste Biomass Utility Scale Facilities 771.0 0.0 1.8 769.2 -1.8 -1.8 -41.5 0 94.6 0 0 0 94.6 769.2 863.8
...... Biomass Sources Subtotal Utility Scale Facilities 14090.2 179.5 94.5 14175.2 85 97.3 74.9 4 153.3 0 15.9 4 137.4 14179.2 14312.6
...... Geothermal Utility Scale Facilities 2511.5 0.0 60.0 2451.5 -60 -60 -90 0 37 0 0 0 37 2451.5 2488.5
... Renewable Sources Subtotal Utility Scale Facilities 200652.4 1748.6 323.8 202077.2 1424.8 2662.7 17852.9 942.6 10503.6 0 258.9 942.6 10244.7 203019.8 212321.9
......... Natural Gas Fired Combined Cycle Utility Scale Facilities 240791.9 206.7 1060.4 239938.2 -853.7 419 5884.8 3190.6 13562.3 0 0 3190.6 13562.3 243128.8 253500.5
......... Natural Gas Fired Combustion Turbine Utility Scale Facilities 126728.2 507.8 129.8 127106.2 378 359.1 3459.5 440 2055.5 36 214.2 404 1841.3 127510.2 128947.5
......... Natural Gas Steam Turbine Utility Scale Facilities 77164.7 211.8 1376.8 75999.7 -1165 -426.5 -2313.5 0 0 106 1708.5 -106 -1708.5 75893.7 74291.2
......... Natural Gas Internal Combustion Engine Utility Scale Facilities 4250.0 30.7 14.3 4266.4 16.4 227.6 621.3 20.4 201.7 0.9 0.9 19.5 200.8 4285.9 4467.2
......... Natural Gas with Compressed Air Storage Utility Scale Facilities 110.0 0.0 0.0 110.0 0 0 0 0 0 0 0 0 0 110 110
......... Other Natural Gas Utility Scale Facilities 116.4 5.2 0.0 121.6 5.2 5.3 14.5 0 29.2 0 0 0 29.2 121.6 150.8
...... Natural Gas Subtotal Utility Scale Facilities 449161.2 962.2 2581.3 447542.1 -1619.1 584.5 7666.6 3651 15848.7 142.9 1923.6 3508.1 13925.1 451050.2 461467.2
......... Conventional Steam Coal Utility Scale Facilities 268463.6 14.0 738.9 267738.7 -724.9 -1507.2 -9747.6 0 0 1553 4461.8 -1553 -4461.8 266185.7 263276.9
......... Coal Integrated Gasification Combined Cycle Utility Scale Facilities 815.0 0.0 0.0 815.0 0 0 0 0 0 0 0 0 0 815 815
...... Coal Subtotal Utility Scale Facilities 269278.6 14.0 738.9 268553.7 -724.9 -1507.2 -9747.6 0 0 1553 4461.8 -1553 -4461.8 267000.7 264091.9
...... Petroleum Coke Utility Scale Facilities 1540.3 0.0 0.0 1540.3 0 0 -204 0 0 0 0 0 0 1540.3 1540.3
...... Petroleum Liquids Utility Scale Facilities 34806.3 19.5 441.9 34383.9 -422.4 -473.7 -547 2 17.9 0.7 497.5 1.3 -479.6 34385.2 33904.3
...... Other Gases Utility Scale Facilities 2497.2 18.0 80.0 2435.2 -62 -62 -65.2 0 0 0 0 0 0 2435.2 2435.2
... Fossil Fuels Subtotal Utility Scale Facilities 757283.6 1013.7 3842.1 754455.2 -2828.4 -1458.4 -2897.2 3653 15866.6 1696.6 6882.9 1956.4 8983.7 756411.6 763438.9
...... Hydroelectric Pumped Storage Utility Scale Facilities 22670.1 0.0 0.0 22670.1 0 0 73 0 114 0 0 0 114 22670.1 22784.1
...... Flywheels Utility Scale Facilities 44.0 0.0 2.0 42.0 -2 -2 -2 0 0 0 0 0 0 42 42
...... Batteries Utility Scale Facilities 557.2 33.0 0.1 590.1 32.9 50.4 208.9 26 105.1 0 0 26 105.1 616.1 695.2
... Energy Storage Subtotal Utility Scale Facilities 23271.3 33.0 2.1 23302.2 30.9 48.4 279.9 26 219.1 0 0 26 219.1 23328.2 23521.3
... Nuclear Utility Scale Facilities 99327.5 3.0 0.0 99330.5 3 14.6 658.5 0 20 0 0 0 20 99330.5 99350.5
... All Other Utility Scale Facilities 1484.8 18.9 131.0 1372.7 -112.1 -112.1 -88.7 0 54.8 0 0 0 54.8 1372.7 1427.5
TOTAL UTILITY SCALE FACILITIES 1082019.6 2817.2 4299.0 1080537.8 -1481.8 1155.2 15805.4 4621.6 26664.1 1696.6 7141.8 2925 19522.3 1083462.8 1100060.1
                                 
......... Estimated Small Scale Solar Photovoltaic Small Scale Facilities 13807.7     14107.5 299.841 924.3 3297.985                
...... Estimated Total Solar Photovoltaic All Facilities 34135.4     34872.5 737.141 1919 11479.885                
... Estimated Total Solar All Facilities 35893.3     36630.4 737.141 1919 11479.885                

NOTES:
Planned Capacity Additions reflect plans to begin operating new units and plans to uprate existing units.
Planned Capacity Reductions reflect plans to retire or derate existing units.
Actual Capacity Additions reflect new units, uprates to existing units, corrections to previously reported capacities, and additions not previously reported.
Actual Capacity Reductions reflect retirements of and derates to existing units, corrections to previously reported capacities, and reductions not previously reported.
Capacity from facilities with a total generator nameplate capacity less than 1 MW are excluded from this table.

Sources: U.S. Energy Information Administration, Form EIA-860, 'Annual Electric Generator Report' and Form EIA-860M, 'Monthly Update to the Annual Electric Generator Report.'
Estimated small scale solar photovoltaic capacity is based on data from Form EIA-861M, Form EIA-861 and from estimation methods described in the technical notes.