Arvah B Hopkins
Natural gas power plant in Leon County, Florida. 673.1 MW of nameplate capacity across 9 generators, operated by City of Tallahassee - (FL).
Also known as Arvah B. Hopkins Generating Station · EIA plant 688
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 673.1 MWNameplate
- Generators
- 9 operatingEIA-860M, August 2026
- Operating since
- October 1977First generator online
- Operator
- City of Tallahassee - (FL)EIA operator ID 18445
- Grid
- TALBalancing authority TAL
- Price nodes
- None linkedNo verified ISO node
- Location
- Leon County, FL30.4522, −84.4000
- EIA plant ID
- 688EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Arvah B Hopkins produces
Free · EIA-923Net generation, 2025
1.65 TWh
1,646,364 MWh, final
Capacity factor, 2025
27.9%
2024: 29.6%
January to July 2026
950 GWh
Provisional
Range, 2015 to 2025
1.4–1.8
TWh a year. Low 2015, high 2024
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 1,348,528 | Not reported | 12 of 12 |
| 2001 | 783,053 | Not reported | 12 of 12 |
| 2002 | 740,853 | Not reported | 12 of 12 |
| 2003 | 336,652 | Not reported | 5 of 12 |
| 2004 | 907,533 | Not reported | 12 of 12 |
| 2005 | 804,295 | Not reported | 12 of 12 |
| 2006 | 786,474 | Not reported | 12 of 12 |
| 2007 | 814,564 | Not reported | 12 of 12 |
| 2008 | 585,432 | Not reported | 5 of 12 |
| 2009 | 1,325,908 | Not reported | 12 of 12 |
| 2010 | 1,439,692 | 24.0% | 12 of 12 |
| 2011 | 1,375,499 | Not reported | 12 of 12 |
| 2012 | 1,433,576 | 23.4% | 12 of 12 |
| 2013 | 1,566,161 | Not reported | 12 of 12 |
| 2014 | 1,535,992 | 25.2% | 12 of 12 |
| 2015 | 1,378,815 | Not reported | 12 of 12 |
| 2016 | 1,658,663 | 27.1% | 12 of 12 |
| 2017 | 1,384,665 | Not reported | 12 of 12 |
| 2018 | 1,610,213 | Not reported | 12 of 12 |
| 2019 | Not reported | Not reported | 0 of 12 |
| 2020 | 1,623,559 | Not reported | 12 of 12 |
| 2021 | 1,411,834 | 23.9% | 12 of 12 |
| 2022 | 1,558,740 | 26.4% | 12 of 12 |
| 2023 | 1,646,202 | 27.9% | 12 of 12 |
| 2024 | 1,751,819 | 29.6% | 12 of 12 |
| 2025 | 1,646,364 | 27.9% | 12 of 12 |
| 2026 (provisional, partial year) | 950,145 | 27.7% | 7 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDCO₂, 2025
669,132
US short tons. 2024: 676,996
SO₂, 2025
19
US short tons
NOx, 2025
82
US short tons
CO₂ per MWh, calculated
0.41 t
About 813 lb per MWh
3 of 3 EPA units reported CO₂ in 2025 (1, 2A, HC2, HC3, HC4), matched to EIA plant 688 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
570
million gallons
Consumption, 2024
245
million gallons
Source
Wells
Ground, Fresh. Induced-draft tower
Watershed stress
Low · 0.258
USGS SUI, HUC12 Holley Branch-Ochlockonee River
12 of 12 cooling months report withdrawal. Groundwater user; SUI describes surface water and is context only. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 2 | Natural Gas Fired Combined Cycle | 259.2 | October 1977 |
| CT 2A | Natural Gas Fired Combined Cycle | 198.9 | October 2008 |
| GT3 | Natural Gas Fired Combustion Turbine | 60.5 | September 2005 |
| GT4 | Natural Gas Fired Combustion Turbine | 60.5 | November 2005 |
| IC1 | Natural Gas Internal Combustion Engine | 18.8 | January 2019 |
| IC2 | Natural Gas Internal Combustion Engine | 18.8 | January 2019 |
| IC3 | Natural Gas Internal Combustion Engine | 18.8 | January 2019 |
| IC4 | Natural Gas Internal Combustion Engine | 18.8 | January 2019 |
| IC5 | Natural Gas Internal Combustion Engine | 18.8 | April 2020 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists City of Tallahassee - (FL) as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Power plants near Arvah B Hopkins
More plants operated by City of Tallahassee - (FL)
Questions about Arvah B Hopkins
How much power does Arvah B Hopkins produce?
Arvah B Hopkins reported 1,646,364 MWh (1.65 TWh) of net generation in 2025, a 27.9% capacity factor on 673.1 MW of nameplate capacity. From January to July 2026 it reported 950 GWh, which is provisional.
Where is Arvah B Hopkins?
Arvah B Hopkins is in Leon County, Florida, at 30.4522, −84.4000. It is in the City of Tallahassee balancing area (TAL).
Who operates Arvah B Hopkins?
EIA-860M for August 2026 lists City of Tallahassee - (FL) as the operator (EIA operator ID 18445). The operator is not always the owner.
When did Arvah B Hopkins start operating?
Its first generator began operating in October 1977, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page