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TALCHER STPS — India

Coal power plant in Odisha, India. Approximate location 21.0966, 85.074.

CoalOdishaIndiasubcritical

TALCHER STPS is a 3,000 MW coal power station in Odisha, India. It is operated by NTPC Limited. Based on reported annual generation of 19,850 GWh, it can supply roughly 5.7 million homes. It ranks #51 of 2,225 India power plants by installed capacity. Commissioned in 2001, it is around 25 years old — relatively modern. In context, coal supplies about 70.8% of India's electricity; the national grid averages 670 gCO₂/kWh (26.7% low-carbon) (2025).

3,000MW installed capacity
19,850GWh reported / yr
5,671,428homes powered
2001commissioned (~25 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id IND0000439.

Data status

Known data

FacilityTALCHER STPS WRI
CountryIndia · Odisha WRI
Coordinates21.0966, 85.074 WRI
FuelCoal WRI
MW installed capacity3,000 MW GEM · 2026 · L100000102502; operating plant capacity
Verification noteQuality label backfilled from existing source-backed capacity provenance on 2026-07-05; capacity value was not changed. source-verified
OwnerNTPC Limited WRI
Commissioned2001 WRI
Technologysubcritical WRI
GWh reported / yr19,850 GWh·a⁻¹ WRI

Calculated from dataset

CO₂ emissions19,850,000 t CO₂·a⁻¹ calculated
Capacity rank in country#51 / 2225 calculated
Fuel-specific rank in country#48 / 713 calculated
Capacity vs country/fuel peers3.00× · 1,000 MW · n=713 calculated
Homes-powered equivalent5,671,428 calculated from reported generation
Climate27.0°C · HDD 0 derived from coordinates
Environmental severityC3 · 39/100 derived from coordinates

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 · L100000102502; fuel: WRI GPPD

In context: how this plant compares

At 3,000 MW, TALCHER STPS 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.

Key facts

Load factor
76%, from 19,850 GWh of reported generation; the median for 167 coal plants in India that report generation is 54%
Generation trend
22,215 GWh in 2014 and 19,850 GWh in 2018 (−11%)
Highest and lowest year
2015: 22,480 GWh; 2018: 19,850 GWh
Share of India coal capacity
0.4% of 805,419 MW across 713 plants in this dataset
Age among peers
89 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)).

Reported generation trend

2014: 22,215 GWh20142015: 22,480 GWh20152016: 21,370 GWh20162017: 21,490 GWh20172018: 19,850 GWh201822k GWh

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by NTPC Limited.

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 21.1°N — which shapes how much energy it can produce and how its output varies through the year.

27.0°Cannual mean temp
0heating degree-days (base 18°C)
3,292cooling degree-days (base 18°C)
109 melevation

Monthly mean temperature

J: 21 °CJF: 24 °CFM: 28 °CMA: 32 °CAM: 33 °CMJ: 31 °CJJ: 28 °CJA: 28 °CAS: 28 °CSO: 27 °CON: 23 °CND: 20 °CD33 °C

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 a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
39/100environmental-severity index
12.9°Cseasonal temperature swing
172 kmdistance to coast

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 #48 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

Location

Coordinates 21.0966, 85.074 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is TALCHER STPS?

TALCHER STPS is a 3,000 MW coal power plant in Odisha, India, commissioned in 2001.

How much electricity does TALCHER STPS generate?

TALCHER STPS generates about 19,850 GWh of electricity per year.

Who operates TALCHER STPS?

TALCHER STPS is operated by NTPC Limited.

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