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Kapstone — Power plant · Biomass · WestRock North Charleston
  • Bioenergy
  • Retired
  • 10 · 100 · 1,000 MW

Power plant · Biomass

Key facts

Power plant · Biomassran 18% of 2023 Retired
Capacity
Capacity: sourceEIA-860M · Open licenseMW
Commissioned
1999
Net generation, 2023
153,176 MWh
Location
Charleston County, South Carolina

Operations

Net generation, 2023
153,176MWh
Fuel burned, 2023
6,263,405MMBtu
Capacity factor, 2023
17.6%
Heat rate, 2023
Not stated
Capacity factor % of full output, by year
Heat rate Btu per kWh, by year
Net generation, fuel burned, capacity factor and heat rate by year, newest first, as EIA's bulk electricity file states them.
YearNet generation (MWh)Fuel burned (MMBtu)Capacity factorHeat rate (Btu/kWh)
2023153,1766,263,40517.6%—
2022456,46812,772,35452.5%27,981
2021366,68910,681,26342.2%29,129
2020423,72511,804,87748.6%27,860
2019 (11 of 12 months)477,95112,214,132—25,555
2018 (11 of 12 months)435,28311,229,365—25,798
2017508,36212,720,52958.5%25,023
2016520,90911,849,02859.8%22,747
2015536,19612,662,35661.7%23,615
2014573,30213,490,31366.0%23,531
2013564,47313,403,66165.0%23,745
2012579,25213,113,00866.5%22,638
2011506,21812,437,01058.2%24,568
2010528,55613,035,59760.8%24,663
2009491,98012,495,30156.6%25,398
2008539,98310,896,00162.0%20,178
2007535,8797,959,41061.7%14,853
2006542,6658,453,82962.5%15,578
2005535,04810,343,71761.6%19,332
2004603,6949,274,00069.3%15,362
2003222,1542,091,14425.6%9,413
How these are worked out

Net generation and fuel burned are the monthly figures EIA publishes in its bulk electricity file, from the plant's Form 923 reports; a year is the sum of its months. Capacity factor is a full year's net generation over today's nameplate capacity times the hours in that year (8,784 in a leap year), so a plant uprated or partly retired since reads against its current size; heat rate is fuel burned over net generation, for plants that burn fuel. A year with fewer than twelve months stated has no capacity factor, and a value outside the plausible range is left blank rather than shown. By month, the charts apply the same rules to each month's own hours and fuel.

Sources

3 sources

Sources EIA-860M · GEM · EIA

Sources

  • EIA-860MOpen license · retrieved Nov 4, 2026
  • GEMOpen license, with credit · retrieved Oct 26, 2026Global Integrated Power Tracker, Global Energy Monitor, September 2026 release (https://globalenergymonitor.org/projects/global-integrated-power-tracker), CC BY 4.0. Modified by Inframation: TransitionZero-sourced rows removed; statuses and technologies mapped to Inframation's vocabulary; figures aggregated. Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License.
  • EIAOpen license · retrieved Nov 1, 2026Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)

Every source and license · Attribution

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