Electric Power Monthly
Data for April 2015 | Release Date: June 25, 2015 | Next Release: July 27, 2015
| full report
Previous Issues
| Table 6.7.B. Capacity Factors for Utility Scale Generators Not Primarily Using Fossil Fuels, January 2013-April 2015 |
| Period | Nuclear | Conventional Hydropower | Wind | Solar Photovoltaic | Solar Thermal | Landfill Gas and Muncipal Solid Waste | Other Biomass Including Wood | Geothermal |
|---|---|---|---|---|---|---|---|---|
| Annual Factors | ||||||||
| 2013 | 89.9% | 38.9% | 32.4% | NA | NA | 68.9% | 56.7% | 73.6% |
| 2014 | 91.7% | 37.5% | 33.9% | 27.8% | 19.5% | 68.9% | 52.1% | 68.8% |
| 2013 | ||||||||
| January | 93.9% | 42.3% | 33.5% | NA | NA | 66.0% | 56.5% | 76.9% |
| February | 90.3% | 38.3% | 35.4% | NA | NA | 65.2% | 56.0% | 76.1% |
| March | 83.4% | 34.8% | 35.9% | NA | NA | 69.0% | 55.4% | 76.8% |
| April | 77.6% | 44.4% | 41.1% | NA | NA | 66.9% | 44.8% | 73.3% |
| May | 83.3% | 48.4% | 37.0% | NA | NA | 70.4% | 50.5% | 71.7% |
| June | 93.1% | 48.3% | 32.4% | NA | NA | 71.0% | 54.8% | 72.4% |
| July | 95.6% | 46.8% | 25.3% | NA | NA | 71.1% | 58.2% | 73.3% |
| August | 96.7% | 37.2% | 22.0% | NA | NA | 71.9% | 64.8% | 72.5% |
| Sept | 92.2% | 29.9% | 27.4% | NA | NA | 69.4% | 61.1% | 73.6% |
| October | 85.7% | 29.2% | 31.0% | NA | NA | 66.6% | 57.9% | 74.7% |
| November | 91.0% | 31.1% | 37.0% | NA | NA | 69.5% | 61.0% | 68.8% |
| December | 96.6% | 35.9% | 31.3% | NA | NA | 69.9% | 59.0% | 73.0% |
| 2014 | ||||||||
| January | 99.0% | 36.3% | 40.4% | NA | NA | 63.6% | 56.8% | 67.9% |
| February | 93.9% | 32.5% | 34.4% | NA | NA | 61.4% | 55.7% | 67.3% |
| March | 84.5% | 41.3% | 39.6% | NA | NA | 69.2% | 53.3% | 67.6% |
| April | 78.9% | 44.6% | 43.1% | NA | NA | 68.9% | 39.1% | 68.7% |
| May | 85.3% | 45.3% | 34.5% | NA | NA | 70.9% | 42.4% | 68.4% |
| June | 95.4% | 45.8% | 36.1% | NA | NA | 70.5% | 56.1% | 68.7% |
| July | 97.4% | 41.9% | 26.7% | NA | NA | 72.4% | 56.0% | 67.8% |
| August | 96.3% | 33.9% | 22.5% | 31.9% | 25.0% | 72.0% | 56.0% | 68.0% |
| Sept | 94.5% | 28.0% | 26.0% | 32.0% | 25.9% | 69.7% | 52.3% | 69.3% |
| October | 84.5% | 29.0% | 31.5% | 26.7% | 20.8% | 68.5% | 51.3% | 69.1% |
| November | 91.2% | 33.0% | 42.2% | 23.4% | 13.4% | 71.4% | 54.1% | 72.2% |
| December | 99.5% | 38.4% | 30.4% | 15.6% | 5.5% | 68.4% | 52.6% | 70.4% |
| 2015 | ||||||||
| January | 101.2% | 41.9% | 31.4% | NA | NA | 67.4% | 46.0% | 74.1% |
| February | 95.8% | 43.0% | 34.2% | NA | NA | 62.1% | 55.6% | 73.4% |
| March | 87.9% | 42.2% | 31.5% | NA | NA | 58.9% | 49.0% | 74.2% |
| April | 84.1% | 39.5% | 37.6% | NA | NA | 65.5% | 40.8% | 70.8% |
| Values for 2013 and prior years are final. Values for 2014 and 2015 are preliminary. NA = Not Available Notes: Solar Thermal Capacity Factors include generation from plants using concentrated solar power energy storage. Sources: U.S. Energy Information Administration, Form EIA-923, Power Plant Operations Report; U.S. Energy Information Administration, Form EIA-860, 'Annual Electric Generator Report' and Form EIA-860M, 'Monthly Update to the Annual Electric Generator Report.' |