Hunan Guiyang County Datan is a 30 MW hydro power plant in Hunan, China. It is operated by Hunan Runhai Power Co Ltd. Based on its capacity (estimated), it can supply roughly 30k homes (estimated). It ranks #4414 of 6,685 China 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 13.2% of China's electricity; the national grid averages 525 gCO₂/kWh (41.7% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1072544.
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 · L100001054637; fuel: WRI GPPD
In context: how this plant compares
At 30 MW, Hunan Guiyang County Datan is well above the median hydro plant in China (24 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
- Share of China hydro capacity
- less than 0.1% of 262,337 MW across 947 plants in this dataset
- Age among peers
- 215 of 381 dated hydro plants in China 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 China
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by Hunan Runhai Power Co Ltd.
Local climate & thermal context
This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 26.1°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 47% 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: 30/100 — 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 #430 largest hydro power plant of 947 in China by capacity.
China has 947 hydro power plants in this dataset, together about 262,337 MW of capacity.
Nearby power plants
- Shangbao Small · Hydro · 14 MW · Hunan
- Leiyang Baiyang Coal · Coal · 120 MW · Hunan
- Leiyang power station · Coal · 1,020 MW · Hunan
- Yongxing Coal · Coal · 120 MW · Hunan
- Hunan Chenzhou power station · Biomass · 30 MW · Hunan
- Hunan Yongxing power station · Coal · 390 MW · Hunan
Location
Coordinates 26.1019, 112.6917 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Hunan Guiyang County Datan?
Hunan Guiyang County Datan is a 30 MW hydro power plant in Hunan, China, commissioned in 2010.
Who operates Hunan Guiyang County Datan?
Hunan Guiyang County Datan is operated by Hunan Runhai Power Co Ltd.