Severnaya CHPP-21 is a 500 MW gas power station in Leningrad, Russia. It is operated by PJSC "TGC-1". Based on its capacity (estimated), it can supply roughly 563k homes (estimated). It ranks #155 of 678 Russia power plants by installed capacity. Commissioned in 1975, it is around 51 years old — an older, legacy facility. In context, gas supplies about 44.7% of Russia's electricity; the national grid averages 450 gCO₂/kWh (35.7% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1061634.
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 · L100000407243; fuel: WRI GPPD
In context: how this plant compares
At 500 MW, Severnaya CHPP-21 is well above the median gas plant in Russia (200 MW). Technically it is described as Steam. Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Key facts
- Share of Russia gas capacity
- 0.3% of 145,594 MW across 338 plants in this dataset
- Age among peers
- 121 of 238 dated gas plants in Russia are older
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Capacity vs largest gas plants in Russia
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by PJSC "TGC-1". All plants by this company →
Climate zone & how it works
This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 60.1°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 a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with thermal cycling 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 #74 largest gas power plant of 338 in Russia by capacity.
Russia has 338 gas power plants in this dataset, together about 145,594 MW of capacity.
Nearby power plants
- GT TETS Vsevolozhskaya · Gas · 18 MW · Leningrad
- Vsevolozhsk CHP power station · Gas · 170 MW · Leningrad Oblast
- Vyborgskaya CHPP-17 · Gas · 250.5 MW · Leningrad
- Central Heat and Power Plant (ES-2) · Gas · 155 MW · St.-Petersburg
- Central Thermal Power Plant (ES-3) · Gas · 155 MW · St.-Petersburg
- The central thermal power station (ES-1) · Gas · 155 MW · St.-Petersburg
Location
Coordinates 60.0758, 30.4744 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Severnaya CHPP-21?
Severnaya CHPP-21 is a 500 MW gas power plant in Leningrad, Russia, commissioned in 1975.
Who operates Severnaya CHPP-21?
Severnaya CHPP-21 is operated by PJSC "TGC-1".