URUGUA-I — Argentina
Hydro power plant in Misiones, Argentina. Approximate location -25.8766, -54.5687.
HydroMisionesArgentinaconventional storage
URUGUA-I is a 120 MW hydro power station in Misiones, Argentina. It is operated by EMSA. Based on its capacity (estimated), it can supply roughly 120k homes (estimated). It ranks #80 of 275 Argentina power plants by installed capacity. Commissioned in 1991, it is around 35 years old — long-established. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 17.1% of Argentina's electricity; the national grid averages 346 gCO₂/kWh (41.6% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id ARG0000228.
Data status
Known data
Calculated from dataset
Not available
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Data provenance
Source of the capacity and fuel values:
capacity: GEM · 2026 · L100000600041; fuel: WRI GPPD
In context: how this plant compares
At 120 MW, URUGUA-I is well above the median hydro plant in Argentina (42 MW). Technically it is described as conventional storage. Hydropower converts the energy of falling or flowing water into electricity; output depends on rainfall and reservoir level, and large dams also provide grid balancing and storage.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Key facts
- Share of Argentina hydro capacity
- 1.2% of 9,991 MW across 50 plants in this dataset
- Age among peers
- 36 of 49 dated hydro plants in Argentina are older
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Capacity vs largest hydro plants in Argentina
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by EMSA.
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) — Southern Hemisphere, latitude 25.9°S — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 91% 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: 17/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.
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.
Site climate & environmental severity
This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.
Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.
How it compares & nearby plants
The #16 largest hydro power plant of 50 in Argentina by capacity.
Argentina has 50 hydro power plants in this dataset, together about 9,991 MW of capacity.
Nearby power plants
- COMODORO RIVADAVIA · Gas · 141 MW · Misiones
- Acaray Dam · Hydro · 210 MW · Alto Parana
- Itaipu (Parte Brasileira) · Hydro · 7,000 MW · Alto Parana
- Itaipu Binacional Dam (Paraguay part) · Hydro · 7,000 MW · Alto Parana
- COMANDANTE ANDRESITO · Oil · 2.4 MW · Parana
- SAN PEDRO · Oil · 2.2 MW · Misiones
Location
Coordinates -25.8766, -54.5687 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is URUGUA-I?
URUGUA-I is a 120 MW hydro power plant in Misiones, Argentina, commissioned in 1991.
Who operates URUGUA-I?
URUGUA-I is operated by EMSA.