← Back to map

Arvah B Hopkins

Leon County, Florida · EIA plant ID 688 · Operator: City of Tallahassee - (FL)
Natural gasNatural Gas Fired Combined CycleNatural Gas Fired Combustion TurbineNatural Gas Internal Combustion Engine⛽ Dual-fuelBA: TAL
📍 Open in Google Maps
Nameplate673MWSummer 485 MW
Generators9in service
Net generation1,657GWh12 mo to Aug 2026
Capacity factor39%gas/coal/oil units, summer MW
Heat rate7,955Btu/kWhfossil units, electric fuel, HHV
First online1977Runs as intermediate

The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.

Monthly net generation

EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
050100150GWh2001200320052007200920112013201520172019202120232025

Capacity factor by year

Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
0%20%40%2005201020152020202539.0% · 12 mo

Heat rate by year

Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
6,0008,00010,000200520102015202020257,955 Btu/kWh · 12 mo
Annual data table
YearNet GWhCapacity factorHeat rate (Btu/kWh)
2001783.1——
2002740.9——
2003758.825.5%11,384
2004907.530.4%11,435
2005804.325.3%11,298
2006786.520.8%11,251
2007814.621.5%11,366
2008973.528.9%8,982
20091,325.930.0%8,423
20101,439.732.6%8,477
20111,375.531.1%8,418
20121,433.632.4%8,365
20131,566.235.5%8,366
20141,53634.8%8,436
20151,378.831.2%8,688
20161,658.737.5%8,731
20171,384.732.9%8,820
20181,610.240.4%8,793
20191,579.338.7%8,140
20201,623.638.5%8,076
20211,411.833.3%8,088
20221,558.736.7%8,018
20231,646.238.8%7,934
20241,751.841.2%7,980
20251,646.438.8%7,959

Fuel capability

Gas-fired turbines (CT/GT/CA/CS) that can also burn liquid fuel. EIA-860 Schedule 3 for capability, EIA-923 for actual burn.
StatusLikely still dual fuel
Liquid fuel burned · 36 mo130,921 MMBtu
Last month with liquid burnMar 2026
Switch while operatingYes
Net summer MW on gas384
Net summer MW on oil384
Time gas → oilup to 1 h (EIA 1H)
Time oil → gasup to 1 h (EIA 1H)

Generators

EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
Gen IDTechnologyPrime moverNameplate MWSummer MWOnlineStatusPlanned retirementOEM / model
2Natural Gas Fired Combined CycleCA259.2141Oct 1977Operating—coming soon
CT 2ANatural Gas Fired Combined CycleCT198.9159Oct 2008Operating—coming soon
GT3Natural Gas Fired Combustion TurbineGT60.546Sep 2005Operating—coming soon
GT4Natural Gas Fired Combustion TurbineGT60.546Nov 2005Operating—coming soon
IC1Natural Gas Internal Combustion EngineIC18.818.5Jan 2019Operating—coming soon
IC2Natural Gas Internal Combustion EngineIC18.818.5Jan 2019Operating—coming soon
IC3Natural Gas Internal Combustion EngineIC18.818.5Jan 2019Operating—coming soon
IC4Natural Gas Internal Combustion EngineIC18.818.5Jan 2019Operating—coming soon
IC5Natural Gas Internal Combustion EngineIC18.818.5Apr 2020Operating—coming soon
1Natural Gas Steam TurbineST7576May 1971Retired Nov 2018—coming soon
GT1Natural Gas Fired Combustion TurbineGT16.312Feb 1970Retired May 2017—coming soon
GT2Natural Gas Fired Combustion TurbineGT2724Sep 1972Retired May 2017—coming soon

Owner / operator

Operator: City of Tallahassee - (FL). Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
City of Tallahassee - (FL)100.0%673 MW

Nearby plants

Within 80 km.
CoTAL Solar Farm20 MW9.2 km
Sub 1219 MW13.4 km
FL Solar D2, LLC2 MW19.6 km
FL Solar D1, LLC4 MW22.7 km
FL Solar 4, LLC42 MW29.5 km
S O Purdom270 MW37.5 km