Ontimavadi power station is a 6,300 MW coal power station in Andhra Pradesh, India. It is operated by GMR Energy Ltd [100%]. Based on its capacity (estimated), it can supply roughly 7.9 million homes (estimated). It ranks #3 of 2,225 India power plants by installed capacity. In context, coal supplies about 70.8% of India's electricity; the national grid averages 670 gCO₂/kWh (26.7% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id GEM_coa_ontimavadi_india.
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
Capacity and fuel are the upstream open-dataset record, not yet matched to a 2026 registry or GEM entry.
capacity: GEM GCPT; fuel: GEM GCPT
In context: how this plant compares
At 6,300 MW, Ontimavadi power station is well above the median coal plant in India (1,000 MW). Coal plants burn pulverised coal to raise high-pressure steam for a turbine; they run as baseload but are the most carbon-intensive mainstream source and the first targeted for retirement or efficiency retrofits.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Key facts
- Share of India coal capacity
- 0.8% of 805,419 MW across 713 plants in this dataset
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Capacity vs largest coal plants in India
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by GMR Energy Ltd [100%].
Climate zone & how it works
This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a tropical savanna climate (Köppen Aw) — Northern Hemisphere, latitude 16.9°N — which shapes how much energy it can produce and how its output varies through the year.
Climate zone & typical temperatures: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).
Site climate & environmental severity
This site sits in an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion 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 coal power plant of 713 in India by capacity.
India has 713 coal power plants in this dataset, together about 805,419 MW of capacity.
Nearby power plants
- GMR Energy Limited Combined Cycle power plant · Gas · 220 MW · Andhra Pradesh
- GODAVARI GT · Gas · 208 MW · Andhra Pradesh
- Uppada power station · Coal · 1,670 MW · Andhra Pradesh
- Samalkot Combined Cycle power plant · Gas · 220 MW · Andhra Pradesh
- GAUTAMI CCCP · Gas · 464 MW · Andhra Pradesh
- PEDDAPURAM CCGT(Samalkot) · Gas · 220 MW · Andhra Pradesh
Location
Coordinates 16.945181, 82.238647 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Ontimavadi power station?
Ontimavadi power station is a 6,300 MW coal power plant in Andhra Pradesh, India.
Who operates Ontimavadi power station?
Ontimavadi power station is operated by GMR Energy Ltd [100%].