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LAJA 1

Hydro power plant in Biobio, Chile. Approximate location -37.2441, -72.5302.

HydroBiobioChilerun-of-river

LAJA 1 is a 34 MW hydro power plant in Biobio, Chile. It is operated by EOLICA MONTE REDONDO S.A.. Based on its capacity (estimated), it can supply roughly 34k homes (estimated). It ranks #151 of 336 Chile power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 22.2% of Chile's electricity; the national grid averages 289 gCO₂/kWh (66.4% low-carbon) (2025).

34Source-backed capacity
34,038homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id CHL0001059.

Data status

Known data

FacilityLAJA 1 WRI
CountryChile · Biobio WRI
Coordinates-37.2441, -72.5302 WRI
FuelHydro WRI
MW installed capacity34 MW WRI source record; scope not independently normalised
OwnerEOLICA MONTE REDONDO S.A. WRI
Technologyrun-of-river WRI

Calculated from dataset

Capacity rank in country#151 of 336 calculated
Fuel-specific rank in country#33 of 99 calculated
Capacity vs country/fuel peers2.83× · 12 MW median · 99 peers calculated
Homes-powered equivalent34,038 calculated
Climate13.3°C · HDD 1,767 derived from coordinates
Environmental severityC3 · 29/100 derived from coordinates

Not available

CommissionedNot available not in dataset
GWh reported / yrNot available not in dataset
CO₂ emissionsnot applicable not applicable

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: GEM tracker 2026 (location L100001054606); fuel: WRI source-record fuel

In context: how this plant compares

At 34 MW, LAJA 1 is well above the median hydro plant in Chile (12 MW). Technically it is described as run-of-river. 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.

Capacity vs largest hydro plants in Chile

RALCO: 690 MW690RALCOPEHUENCHE: 570 MW570PEHUENCHECOLBUN: 474 MW474COLBUNPANGUE: 467 MW467PANGUEEL TORO: 450 MW450EL TORORAPEL: 377 MW377RAPELANGOSTURA: 328 MW328ANGOSTURAANTUCO: 320 MW320ANTUCO

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

Owner

Operated by EOLICA MONTE REDONDO S.A..

Local climate & thermal context

This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a warm-summer Mediterranean climate (Köppen Csb) — Southern Hemisphere, latitude 37.2°S — which shapes how much energy it can produce and how its output varies through the year.

13.3°Cannual mean temp
1,767heating degree-days (base 18°C)
60cooling degree-days (base 18°C)
131 melevation

Monthly mean temperature

J: 20 °CJF: 18 °CFM: 16 °CMA: 13 °CAM: 11 °CMJ: 9 °CJJ: 8 °CJA: 9 °CAS: 11 °CSO: 13 °CON: 15 °CND: 18 °CD20 °C

Heating degree-days here run 28% 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: 39/100 — this site sits in the mid 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

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
29/100environmental-severity index
11.2°Cseasonal temperature swing
84 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

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 #33 largest hydro power plant of 99 in Chile by capacity.

Chile has 99 hydro power plants in this dataset, together about 6,416 MW of capacity.

Nearby power plants

Location

Coordinates -37.2441, -72.5302 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is LAJA 1?

LAJA 1 is a 34 MW source-record hydro power plant in Biobio, Chile.

How many homes can LAJA 1 power?

Its output is enough to supply roughly 34,038 homes (estimated).

Who operates LAJA 1?

LAJA 1 is operated by EOLICA MONTE REDONDO S.A..

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