Petit Saut

Hydro power plant in Guyane, French Guiana. Approximate location 5.0627, -53.0476.

HydroGuyaneFrench Guiana

Petit Saut is a 114 MW hydro power station in Guyane, French Guiana. It is operated by Électricité de France. Based on its capacity (estimated), it can supply roughly 113,729 homes (estimated). It ranks #1 of 6 French Guiana power plants by installed capacity. Commissioned in 1994, it is around 32 years old — long-established. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 53.1% of French Guiana's electricity; the national grid averages 245 gCO₂/kWh (65.3% low-carbon) (2023).

114MW installed capacity
113,729homes powered (est.)
1994commissioned (~32 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1022129.

Owner

Operated by Électricité de France. 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 tropical rainforest climate (Köppen Af) — Northern Hemisphere, latitude 5.1°N — which shapes how much energy it can produce and how its output varies through the year.

25.4°Cannual mean temp
0heating degree-days (base 18°C)
2,687cooling degree-days (base 18°C)
102 melevation

Monthly mean temperature

J: 25 °CJF: 25 °CFM: 25 °CMA: 26 °CAM: 25 °CMJ: 25 °CJJ: 25 °CJA: 26 °CAS: 26 °CSO: 26 °CON: 26 °CND: 25 °CD26 °C

Heating degree-days here run 100% 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: 13/100 — 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

French Guiana has 1 hydro power plant in this dataset, together about 114 MW of capacity.

Nearby power plants

Location

Coordinates 5.0627, -53.0476 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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