Yeywa is a 790 MW hydro power station in Mandalay, Myanmar. It is operated by Ministry of Electricity and Energy (MOEE) [100%]. Based on reported annual generation of 3,550 GWh, it can supply roughly 1.0 million homes. It ranks #11 of 69 Myanmar power plants by installed capacity. Commissioned in 2010, it is around 16 years old — relatively modern. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 46.1% of Myanmar's electricity; the national grid averages 503 gCO₂/kWh (47.9% low-carbon) (2024).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1061374.
Data status
Known data
Calculated from dataset
Not available
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Data provenance
Source of the capacity and fuel values:
capacity: GEM · 2026 · L100000602570; fuel: WRI GPPD
In context: how this plant compares
At 790 MW, Yeywa is well above the median hydro plant in Myanmar (60 MW). Technically it is described as conventional storage. 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.
Key facts
- Load factor
- 51%, from 3,550 GWh of reported generation; the median for 18 hydro plants in Myanmar that report generation is 50%
- Share of Myanmar hydro capacity
- 29.0% of 2,725 MW across 20 plants in this dataset
- Age among peers
- 14 of 20 dated hydro plants in Myanmar are older
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Capacity vs largest hydro plants in Myanmar
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by Ministry of Electricity and Energy (MOEE) [100%].
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 21.7°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 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.
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
This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.
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 #1 largest hydro power plant of 20 in Myanmar by capacity.
Myanmar has 20 hydro power plants in this dataset, together about 2,725 MW of capacity.
Nearby power plants
- Kyaukse (PowerGen) power plant · Gas · 144.8 MW · Mandalay
- Zawgyi (1) · Hydro · 18 MW · Mandalay
- Sedawgyi · Hydro · 25 MW · Mandalay
- Kalewa power station · Coal · 540 MW · Mandalay
- Kinda · Hydro · 56 MW · Sagain
- Mandalay power station · Coal · 500 MW · Mandalay
Location
Coordinates 21.67, 96.473 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Yeywa?
Yeywa is a 790 MW hydro power plant in Mandalay, Myanmar, commissioned in 2010.
How much electricity does Yeywa generate?
Yeywa generates about 3,550 GWh of electricity per year.
Who operates Yeywa?
Yeywa is operated by Ministry of Electricity and Energy (MOEE) [100%].