Alao

Hydro power plant in Chimborazo, Ecuador. Approximate location -1.9, -78.4833.

HydroChimborazoEcuador

Alao is a 10 MW hydro power plant in Chimborazo, Ecuador. It is operated by E.E. Riobamba. Based on reported annual generation of 69 GWh, it can supply roughly 20k homes. It ranks #34 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).

10Legacy source-record capacity
69GWh reported / yr
19,742homes powered

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1018590.

Data status

Known data

FacilityAlao WRI
CountryEcuador · Chimborazo WRI
Coordinates-1.9, -78.4833 WRI
FuelHydro WRI
MW installed capacity10 MW WRI source record; scope not independently normalised
OwnerE.E. Riobamba WRI
GWh reported / yr69 GWh/yr WRI

Calculated from dataset

Capacity rank in country#34 of 34 calculated
Fuel-specific rank in country#10 of 10 calculated
Capacity vs country/fuel peers0.42× · 24 MW median · 10 peers calculated
Homes-powered equivalent19,742 calculated from reported generation
Climate7.5°C · HDD 3,833 derived from coordinates
Environmental severityC2 · 22/100 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 10 MW, Alao is below 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 E.E. Riobamba.

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 1.9°S — which shapes how much energy it can produce and how its output varies through the year.

7.5°Cannual mean temp
3,833heating degree-days (base 18°C)
0cooling degree-days (base 18°C)
3,658 melevation

Monthly mean temperature

J: 8 °CJF: 8 °CFM: 8 °CMA: 8 °CAM: 8 °CMJ: 7 °CJJ: 7 °CJA: 7 °CAS: 7 °CSO: 8 °CON: 8 °CND: 8 °CD8 °C

Heating degree-days here run 56% above 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: 82/100 — this site sits in the top 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 mild atmospheric environment (estimated ISO 9223 class C2 — Low), with humidity / wetness the leading environmental stress.

C2ISO 9223 corrosivity (indicative)
22/100environmental-severity index
1.3°Cseasonal temperature swing
247 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 #10 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 -1.9, -78.4833 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Alao?

Alao is a 10 MW source-record hydro power plant in Chimborazo, Ecuador.

How much electricity does Alao generate?

Alao generates about 69 GWh of electricity per year.

How many homes can Alao power?

Its output is enough to supply roughly 19,742 homes.

Who operates Alao?

Alao is operated by E.E. Riobamba.

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