J Woodruff

Hydro power plant in Florida, United States of America. Approximate location 30.7086, -84.8639.

HydroFloridaUnited States of America

J Woodruff is a 44 MW hydro power plant in Florida, United States of America. It is operated by USCE-Mobile District. Based on reported annual generation of 203 GWh, it can supply roughly 58,057 homes. It ranks #2924 of 9,833 United States of America power plants by installed capacity. Commissioned in 2002, it is around 24 years old — relatively modern. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 5.3% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

44MW installed capacity
203GWh reported / yr
58,057homes powered
2002commissioned (~24 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0000690.

Reported generation trend

2013: 232 GWh20132014: 192 GWh20142015: 229 GWh20152016: 154 GWh20162017: 205 GWh20172018: 211 GWh20182019: 203 GWh2019232 GWh

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by USCE-Mobile District. All plants by this company →

Local climate & thermal context

This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 30.7°N — which shapes how much energy it can produce and how its output varies through the year.

19.2°Cannual mean temp
784heating degree-days (base 18°C)
1,220cooling degree-days (base 18°C)
83 melevation

Monthly mean temperature

J: 10 °CJF: 12 °CFM: 15 °CMA: 18 °CAM: 23 °CMJ: 26 °CJJ: 27 °CJA: 27 °CAS: 25 °CSO: 20 °CON: 15 °CND: 12 °CD27 °C

Heating degree-days here run 68% below the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.

Climate heat-demand index: 24/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.

Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.

How it compares & nearby plants

The #319 largest hydro power plant of 1449 in United States of America by capacity.

United States of America has 1449 hydro power plants in this dataset, together about 101,657 MW of capacity.

Nearby power plants

Location

Coordinates 30.7086, -84.8639 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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