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Jack Watson — Power plant · Gas, steam turbine · Mississippi Power Co
  • Combustion
  • Operating
  • 10 · 100 · 1,000 MW

Jack Watson

Power plant · Gas, steam turbine

Key facts

Power plant · Gas, steam turbineran 33% of 2025 Operating
Capacity
Capacity: sourceEIA-860M · Open licenseMW
Commissioned
1968
Net generation, 2025
2,633,847 MWh
Grid
230 kV to Mississippi Power Co (SOCO)
Location
Harrison County, Mississippi

Operations

Net generation, 2025
2,633,847MWh
Fuel burned, 2025
28,449,708MMBtu
Capacity factor, 2025
32.7%
Heat rate, 2025
10,802Btu/kWh
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)
2026 (8 of 12 months)1,923,83020,469,686—10,640
20252,633,84728,449,70832.7%10,802
20242,397,02325,762,99529.7%10,748
20233,271,54034,420,43540.6%10,521
20222,595,78227,811,84632.2%10,714
20212,155,49323,269,40926.8%10,795
20202,234,85124,404,34027.7%10,920
20192,558,55227,196,37131.8%10,630
20181,360,21715,766,88516.9%11,591
20171,466,78217,113,33318.2%11,667
2016727,6838,743,2999.0%12,015
20151,655,87118,335,20020.6%11,073
20144,212,37343,351,48352.3%10,292
20133,178,91332,614,11939.5%10,260
20121,960,58920,512,12024.3%10,462
20112,917,12529,738,38236.2%10,194
20103,013,40031,058,41337.4%10,307
20092,751,96928,874,61934.2%10,492
20085,105,37351,494,48563.2%10,086
20074,802,21048,331,53459.7%10,064
20064,878,06948,684,31860.6%9,980
20053,773,73937,688,01646.9%9,987
20044,701,25246,435,35358.2%9,877
2003 (6 of 12 months)2,606,29925,920,296—9,945
20024,731,90247,138,61558.8%9,962
20014,868,19649,712,78760.5%10,212
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

2 sources

Sources EIA-860M · EIA

Sources

  • EIA-860MOpen license · retrieved Nov 4, 2026
  • 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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