Houay Ho is a 157 MW hydro power station in Bolikhamxai, Laos. It is operated by Suez Energy. Based on its capacity (estimated), it can supply roughly 157,179 homes (estimated). It ranks #6 of 20 Laos power plants by installed capacity. Commissioned in 1999, it is around 27 years old — long-established. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 76.5% of Laos's electricity; the national grid averages 232 gCO₂/kWh (76.7% low-carbon) (2024).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1001049.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Operated by Suez Energy. All plants by this company →
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 18.3°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 #5 largest hydro power plant of 19 in Laos by capacity.
Laos has 19 hydro power plants in this dataset, together about 3,109 MW of capacity.
Coordinates 18.2606, 104.5625 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
