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Tis Abay I

Hydro power plant in Amhara, Ethiopia. Approximate location 11.4887, 37.5999.

HydroAmharaEthiopia

Tis Abay I is a 84 MW hydro power plant in Amhara, Ethiopia. Based on its capacity (estimated), it can supply roughly 84,496 homes (estimated). It ranks #10 of 13 Ethiopia power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 96.5% of Ethiopia's electricity; the national grid averages 23 gCO₂/kWh (100.0% low-carbon) (2025).

84MW installed capacity
84,496homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1000064.

Capacity vs largest hydro plants in Ethiopia

Gilgel Gibe III: 1,870 MW2kGilgel Gib…Beles: 460 MW460BelesGilgel Gibe II: 420 MW420Gilgel Gib…Tekeze: 300 MW300TekezeGilgel Gibe I: 184 MW184Gilgel Gib…Melka Wekana: 153 MW153Melka Weka…Fincha: 134 MW134FinchaFincha Amerti Nesha: 100 MW100Fincha Ame…

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

Local climate & thermal context

This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a subtropical highland climate (Köppen Cwb) — Northern Hemisphere, latitude 11.5°N — which shapes how much energy it can produce and how its output varies through the year.

18.7°Cannual mean temp
56heating degree-days (base 18°C)
303cooling degree-days (base 18°C)
2,031 melevation

Monthly mean temperature

J: 18 °CJF: 19 °CFM: 20 °CMA: 21 °CAM: 20 °CMJ: 20 °CJJ: 18 °CJA: 17 °CAS: 18 °CSO: 18 °CON: 18 °CND: 18 °CD21 °C

Heating degree-days here run 98% 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: 14/100 — 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.

How it compares & nearby plants

The #9 largest hydro power plant of 11 in Ethiopia by capacity.

Ethiopia has 11 hydro power plants in this dataset, together about 3,813 MW of capacity.

Nearby power plants

Location

Coordinates 11.4887, 37.5999 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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