Palomino 1

Hydro power plant in San Juan, Dominican Republic. Approximate location 18.9228, -71.01.

HydroSan JuanDominican Republic

Palomino 1 is a 82 MW hydro power plant in San Juan, Dominican Republic. It is operated by EGEHID. Based on its capacity (estimated), it can supply roughly 82k homes (estimated). It ranks #21 of 30 Dominican Republic power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 6.7% of Dominican Republic's electricity; the national grid averages 537 gCO₂/kWh (23.8% low-carbon) (2025).

82Legacy source-record capacity
81,693homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1002011.

Data status

Known data

FacilityPalomino 1 WRI
CountryDominican Republic · San Juan WRI
Coordinates18.9228, -71.01 WRI
FuelHydro WRI
MW installed capacity82 MW WRI source record; scope not independently normalised
OwnerEGEHID WRI

Calculated from dataset

Capacity rank in country#21 of 30 calculated
Fuel-specific rank in country#2 of 3 calculated
Homes-powered equivalent81,693 calculated
Climate17.2°C · HDD 332 derived from coordinates
Environmental severityC4 · 33/100 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

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 Dominican Republic

Tavera 1: 96 MW96Tavera 1Palomino 1: 82 MW82Palomino 1Jiguey 1: 50 MW50Jiguey 1

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

Owner

Operated by EGEHID.

Local climate & thermal context

This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a tropical savanna climate (Köppen Aw) — Northern Hemisphere, latitude 18.9°N — which shapes how much energy it can produce and how its output varies through the year.

17.2°Cannual mean temp
332heating degree-days (base 18°C)
57cooling degree-days (base 18°C)
1,443 melevation

Monthly mean temperature

J: 15 °CJF: 16 °CFM: 16 °CMA: 17 °CAM: 18 °CMJ: 18 °CJJ: 18 °CJA: 19 °CAS: 18 °CSO: 18 °CON: 17 °CND: 16 °CD19 °C

Heating degree-days here run 86% 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: 18/100 — 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 a corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
33/100environmental-severity index
3.3°Cseasonal temperature swing
79 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 #2 largest hydro power plant of 3 in Dominican Republic by capacity.

Dominican Republic has 3 hydro power plants in this dataset, together about 227 MW of capacity.

Nearby power plants

Location

Coordinates 18.9228, -71.01 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Palomino 1?

Palomino 1 is a 82 MW source-record hydro power plant in San Juan, Dominican Republic.

How many homes can Palomino 1 power?

Its output is enough to supply roughly 81,693 homes (estimated).

Who operates Palomino 1?

Palomino 1 is operated by EGEHID.

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