Saucay

Hydro power plant in Azuay, Ecuador. Approximate location -2.7833, -79.0.

HydroAzuayEcuador

Saucay is a 24 MW hydro power plant in Azuay, Ecuador. It is operated by Elecaustro. Based on reported annual generation of 141 GWh, it can supply roughly 40k homes. It ranks #27 of 34 Ecuador power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 77.9% of Ecuador's electricity; the national grid averages 159 gCO₂/kWh (79.4% low-carbon) (2025).

24Legacy source-record capacity
141GWh reported / yr
40,400homes powered

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1018625.

Data status

Known data

FacilitySaucay WRI
CountryEcuador · Azuay WRI
Coordinates-2.7833, -79.0 WRI
FuelHydro WRI
MW installed capacity24 MW WRI source record; scope not independently normalised
OwnerElecaustro WRI
GWh reported / yr141 GWh/yr WRI

Calculated from dataset

Capacity rank in country#27 of 34 calculated
Fuel-specific rank in country#5 of 10 calculated
Capacity vs country/fuel peers1.00× · 24 MW median · 10 peers calculated
Homes-powered equivalent40,400 calculated from reported generation
Climate13.4°C · HDD 1,689 derived from coordinates
Environmental severityC3 · 31/100 derived from coordinates

Not available

CommissionedNot available not in dataset
TechnologyNot 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 fuel fields on this page are source-record values from the upstream open dataset. They are useful for identification and ranking, but they have not been upgraded to a 2026 registry/GEM-location verified value.

capacity: WRI Global Power Plant Database source-record (legacy); fuel: WRI source-record fuel

In context: how this plant compares

At 24 MW, Saucay is around the median hydro plant in Ecuador (24 MW). 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 Ecuador

Coca Coda Sinclair: 1,500 MW2kCoca Coda …Paute: 1,100 MW1kPauteSopladora II: 487 MW487Sopladora …Manduriacu: 63 MW63ManduriacuSaucay: 24 MW24SaucayGuangopolo: 21 MW21GuangopoloCalope: 18 MW18CalopeSibimbe: 15 MW15Sibimbe

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

Owner

Operated by Elecaustro.

Local climate & thermal context

This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a temperate oceanic climate (Köppen Cfb) — Southern Hemisphere, latitude 2.8°S — which shapes how much energy it can produce and how its output varies through the year.

13.4°Cannual mean temp
1,689heating degree-days (base 18°C)
0cooling degree-days (base 18°C)
2,719 melevation

Monthly mean temperature

J: 14 °CJF: 14 °CFM: 14 °CMA: 14 °CAM: 14 °CMJ: 13 °CJJ: 12 °CJA: 12 °CAS: 13 °CSO: 14 °CON: 14 °CND: 14 °CD14 °C

Heating degree-days here run 31% 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: 38/100 — 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)
31/100environmental-severity index
1.7°Cseasonal temperature swing
148 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 #5 largest hydro power plant of 10 in Ecuador by capacity.

Ecuador has 10 hydro power plants in this dataset, together about 3,252 MW of capacity.

Nearby power plants

Location

Coordinates -2.7833, -79.0 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Saucay?

Saucay is a 24 MW source-record hydro power plant in Azuay, Ecuador.

How much electricity does Saucay generate?

Saucay generates about 141 GWh of electricity per year.

How many homes can Saucay power?

Its output is enough to supply roughly 40,400 homes.

Who operates Saucay?

Saucay is operated by Elecaustro.

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