Nagai Nagapattinam Power Project — India

Nagai Nagapattinam Power Project is a 150 MW coal power station in Tamil Nadu, India. It is operated by Nagai Power Pvt Ltd. Based on its capacity (estimated), it can supply roughly 188k homes (estimated). It ranks #763 of 2,225 India power plants by installed capacity. Commissioned in 2019, it is around 7 years old — recently built. Its modelled annual emissions are 851,870 t CO₂/yr (Climate TRACE), equivalent to about 199k 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-4812.

Data provenance

Source of the capacity and fuel values:

capacity: GEM · 2026 · L100000102563; fuel: Climate TRACE

In context: how this plant compares

At 150 MW, Nagai Nagapattinam Power Project is below 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.

~851,870 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

less than 0.1% of 805,419 MW across 713 plants in this dataset

Age among peers

331 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 Nagai Power 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 10.8°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 #565 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

• Muttam · Solar · 4 MW · Tamil Nadu
• Karaikal Port power station · Coal · 1,980 MW ·
• KARAIKAL · Gas · 32.5 MW · Pondicherry
• Talanchankadu power station · Coal · 1,320 MW · Tamil Nadu
• Tharangambadi power station (Patel Power) · Coal · 1,050 MW · Tamil Nadu
• Tharangambadi power station (PPN Power) · Coal · 320 MW · Tamil Nadu

Location

Coordinates 10.8241, 79.7538 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions