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MENAFRA SOLAR

Solar power plant in Rio Negro, Uruguay. Approximate location -32.6083, -57.4385.

SolarRio NegroUruguay

MENAFRA SOLAR is a 20 MW solar power plant in Rio Negro, Uruguay. Based on its capacity (estimated), it can supply roughly 8,509 homes (estimated). It ranks #36 of 73 Uruguay power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, solar supplies about 5.1% of Uruguay's electricity; the national grid averages 80 gCO₂/kWh (97.8% low-carbon) (2025).

20MW installed capacity
8,509homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id URY0000806.

Capacity vs largest solar plants in Uruguay

EL NARANJAL: 50 MW50EL NARANJALLA JACINTA: 50 MW50LA JACINTAALTO CIELO: 20 MW20ALTO CIELOMENAFRA SOLAR: 20 MW20MENAFRA SO…DEL LITORAL: 16 MW16DEL LITORALDICANO: 11 MW11DICANOARAPEY SOLAR: 10 MW10ARAPEY SOL…FENIMA: 10 MW10FENIMA

Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Local climate & thermal context

This solar plant converts sunlight directly into electricity with photovoltaic panels. It sits in a humid subtropical climate (Köppen Cfa) — Southern Hemisphere, latitude 32.6°S — which shapes how much energy it can produce and how its output varies through the year.

18.1°Cannual mean temp
736heating degree-days (base 18°C)
778cooling degree-days (base 18°C)
64 melevation

Monthly mean temperature

J: 25 °CJF: 24 °CFM: 22 °CMA: 18 °CAM: 15 °CMJ: 12 °CJJ: 11 °CJA: 13 °CAS: 15 °CSO: 18 °CON: 21 °CND: 24 °CD25 °C

Heating degree-days here run 70% 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: 23/100 — 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.

Solar PV loses ~0.35%/°C above 25°C cell temperature — roughly 0.1% at warm-season highs here (estimate).

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 #4 largest solar power plant of 13 in Uruguay by capacity.

Uruguay has 13 solar power plants in this dataset, together about 225 MW of capacity.

Nearby power plants

Location

Coordinates -32.6083, -57.4385 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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