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Ilo 1

Coal power plant in Moquegua, Peru. Approximate location -17.7762, -71.1896.

CoalMoqueguaPerusubcritical

Ilo 1 is a 132 MW coal power station in Moquegua, Peru. It is operated by Energía del Sur S.A.. Based on reported annual generation of 62 GWh, it can supply roughly 18k homes. It ranks #23 of 40 Peru power plants by installed capacity. Commissioned in 1999, it is around 27 years old — long-established. In context, coal supplies about 0.0% of Peru's electricity; the national grid averages 238 gCO₂/kWh (63.6% low-carbon) (2025).

132Source-backed capacity
62GWh reported / yr
17,714homes powered
1999commissioned (~27 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1022047.

Data status

Known data

FacilityIlo 1 WRI
CountryPeru · Moquegua WRI
Coordinates-17.7762, -71.1896 WRI
FuelCoal WRI
MW installed capacity132 MW WRI source record; scope not independently normalised
OwnerEnergía del Sur S.A. WRI
Commissioned1999 WRI
Technologysubcritical WRI
GWh reported / yr62 GWh/yr WRI

Calculated from dataset

CO₂ emissions62,000 t CO₂/yr calculated
Capacity rank in country#23 of 40 calculated
Fuel-specific rank in country#1 of 1 calculated
Homes-powered equivalent17,714 calculated from reported generation
Climate19.0°C · HDD 223 derived from coordinates
Environmental severityC5 · 59/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset

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 L100000103158); fuel: WRI source-record fuel

In context: how this plant compares

Technically it is described as subcritical. Coal plants burn pulverised coal to raise high-pressure steam for a turbine; they run as baseload but are the most carbon-intensive mainstream source and the first targeted for retirement or efficiency retrofits.

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

Owner

Operated by Energía del Sur S.A..

Local climate & thermal context

This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a hot desert climate (Köppen BWh) — Southern Hemisphere, latitude 17.8°S — which shapes how much energy it can produce and how its output varies through the year.

19.0°Cannual mean temp
223heating degree-days (base 18°C)
568cooling degree-days (base 18°C)
185 melevation

Monthly mean temperature

J: 22 °CJF: 22 °CFM: 22 °CMA: 20 °CAM: 18 °CMJ: 17 °CJJ: 16 °CJA: 16 °CAS: 16 °CSO: 18 °CON: 19 °CND: 21 °CD22 °C

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

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 an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.

C5ISO 9223 corrosivity (indicative)
59/100environmental-severity index
6.6°Cseasonal temperature swing
7 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

Peru has 1 coal power plant in this dataset, together about 132 MW of capacity.

Nearby power plants

Location

Coordinates -17.7762, -71.1896 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Ilo 1?

Ilo 1 is a 132 MW source-record coal power plant in Moquegua, Peru, commissioned in 1999.

How much electricity does Ilo 1 generate?

Ilo 1 generates about 62 GWh of electricity per year.

How many homes can Ilo 1 power?

Its output is enough to supply roughly 17,714 homes.

Who operates Ilo 1?

Ilo 1 is operated by Energía del Sur S.A..

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