Pozo Almonte 2+3 — Chile

Pozo Almonte 2+3 is a 23.5 MW solar power plant in Tarapaca, Chile. Based on its capacity (estimated), it can supply roughly 10.0k homes (estimated). It ranks #176 of 336 Chile power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, solar supplies about 25.1% of Chile's electricity; the national grid averages 289 gCO₂/kWh (66.4% low-carbon) (2025).

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WKS0061952.

Capacity provenance

The public capacity above is the current source-record value. A 2026 tracker candidate lists 8 MW for Pozo Almonte 2 solar project, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

Data provenance

Source of the capacity and fuel values:

capacity: GEM · 2026 · L100000832248; fuel: WRI GPPD

In context: how this plant compares

At 23.5 MW, Pozo Almonte 2+3 is below the median solar plant in Chile (40 MW). Solar PV converts sunlight directly into electricity with no moving parts or fuel; output varies by time of day and weather, so it pairs with storage or flexible backup.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Key facts

Share of Chile solar capacity

0.6% of 4,074 MW across 77 plants in this dataset

Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).

Capacity vs largest solar plants in Chile

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 cold desert climate (Köppen BWk) — Southern Hemisphere, latitude 20.2°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 73% 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: 22/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

Solar PV loses ~0.35%/°C above 25°C cell temperature — roughly 0.0% 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.

Site climate & environmental severity

This site sits in a benign, low-corrosion environment (estimated ISO 9223 class C1 — Very low), with dust abrasion 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 #51 largest solar power plant of 77 in Chile by capacity.

Chile has 77 solar power plants in this dataset, together about 4,074 MW of capacity.

Nearby power plants

• POZO ALMONTE SOLAR 3 · Solar · 16 MW · Tarapaca
• Pozo Almonte 1 · Solar · 9 MW · Tarapaca
• POZO ALMONTE SOLAR 2 · Solar · 7.5 MW · Tarapaca
• La Tirana · Solar · 30.2 MW · Tarapaca
• La Huayca II · Solar · 7.6 MW · Tarapaca
• La Huayca III · Solar · 21 MW · Tarapaca

Location

Coordinates -20.248, -69.747 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions