Ukuwela is a 40 MW hydro power plant in Central, Sri Lanka. It is operated by Ceylon Electricity Board. Based on its capacity (estimated), it can supply roughly 40,045 homes (estimated). It ranks #21 of 48 Sri Lanka power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 38.2% of Sri Lanka's electricity; the national grid averages 329 gCO₂/kWh (61.6% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1030425.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Operated by Ceylon Electricity Board. All plants by this company →
This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a tropical rainforest climate (Köppen Af) — Northern Hemisphere, latitude 7.4°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 100% 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: 13/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.
In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.
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.
The #14 largest hydro power plant of 21 in Sri Lanka by capacity.
Sri Lanka has 21 hydro power plants in this dataset, together about 1,442 MW of capacity.
Coordinates 7.3989, 80.6522 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
