Mutiara Coastal Energen Thermal Power Plant is a 1,200 MW coal power station in Tamil Nadu, India. It is operated by Coastal Energen Pvt Ltd. Based on its capacity (estimated), it can supply roughly 1.5 million homes (estimated). It ranks #344 of 2,225 India power plants by installed capacity. Commissioned in 2014, it is around 12 years old — relatively modern. Its modelled annual emissions are 5,414,000 t CO₂/yr (Climate TRACE), equivalent to about 1.3 million cars driven for a year. 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 CT-4726.
Data status
Known data
Modelled source 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 · L100000102562; fuel: Climate TRACE
In context: how this plant compares
At 1,200 MW, Mutiara Coastal Energen Thermal Power Plant is well above the median coal plant in India (1,000 MW). Technically it is described as subcritical. 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.
~5,414,000 t CO₂/yr (modelled) — in everyday terms
This facility's annual emissions are roughly equivalent to:
Equivalencies via US EPA Greenhouse Gas Equivalencies; modelled emissions from Climate TRACE.
Key facts
- Share of India coal capacity
- 0.1% of 805,419 MW across 713 plants in this dataset
- Age among peers
- 247 of 354 dated coal plants in India are older
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 Coastal Energen Pvt Ltd.
Local climate & thermal context
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 8.9°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
This site has effectively no heating season (tropical/equatorial climate), so winter heat loss is not the driver here. The thermal concern shifts to year-round process heat and humidity/heat-driven corrosion of hot equipment.
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 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 #321 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
- MELAMARUTHUR (MUTHIARA) · Coal · 1,200 MW · Tamil Nadu
- Arasadi · Solar · 10 MW · Tamil Nadu
- Jaya power station · Coal · 450 MW · Tamil Nadu
- Tuticorin Smelter power station · Coal · 160 MW · Tamil Nadu
- TUTICORIN · Coal · 1,050 MW · Tamil Nadu
- TUTICORIN- IND BARATH · Coal · 300 MW · Tamil Nadu
Location
Coordinates 8.9127, 78.145 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Mutiara Coastal Energen Thermal Power Plant?
Mutiara Coastal Energen Thermal Power Plant is a 1,200 MW coal power plant in Tamil Nadu, India, commissioned in 2014.
Who operates Mutiara Coastal Energen Thermal Power Plant?
Mutiara Coastal Energen Thermal Power Plant is operated by Coastal Energen Pvt Ltd.
How much CO₂ does Mutiara Coastal Energen Thermal Power Plant emit?
Mutiara Coastal Energen Thermal Power Plant has modelled emissions of about 5,414,000 tonnes of CO₂ per year (Climate TRACE).