TERNI is a 95 MW gas power plant in Umbria, Italy. It is operated by Edison SpA [100%]. Based on its capacity (estimated), it can supply roughly 107k homes (estimated). It ranks #171 of 489 Italy power plants by installed capacity. Commissioned in 2000, it is around 26 years old — long-established. Its annual emissions of 25,753 t CO₂/yr (EU ETS) are equivalent to about 6.0k cars driven for a year. In context, gas supplies about 47.2% of Italy's electricity; the national grid averages 285 gCO₂/kWh (48.8% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1021298.
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 · L100000400466; fuel: WRI GPPD
In context: how this plant compares
At 95 MW, TERNI is below the median gas plant in Italy (324 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). 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.
25,753 t CO₂/yr — in everyday terms
This facility's annual emissions are roughly equivalent to:
Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions per EU ETS (measured for US EPA/EU ETS, modelled for Climate TRACE).
Key facts
- Share of Italy gas capacity
- 0.2% of 53,570 MW across 118 plants in this dataset
- Age among peers
- 28 of 103 dated gas plants in Italy 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 Italy
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by Edison SpA [100%].
Local climate & thermal context
This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a temperate oceanic climate (Köppen Cfb) — Northern Hemisphere, latitude 42.6°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 2% below the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.
Climate heat-demand index: 49/100 — this site sits in the mid third of the power plants we cover by heating degree-days.
A gas turbine here also runs ~0% below its ISO (15°C) rating at this annual mean (typical CCGT curve, estimate).
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.
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 #88 largest gas power plant of 118 in Italy by capacity.
Italy has 118 gas power plants in this dataset, together about 53,570 MW of capacity.
Nearby power plants
- Massoli Terni Solar Power Plant · Solar · 2.3 MW · Umbria
- GALLETO · Hydro · 295 MW · Umbria
- BASCHI · Hydro · 86 MW · Umbria
- Pietro Vannucci power station · Coal · 150 MW · Umbria
- Rinaldone · Solar · 5 MW · Latium
- PIETRAFITTA · Gas · 365 MW · Umbria
Location
Coordinates 42.554, 12.6176 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is TERNI?
TERNI is a 95 MW gas power plant in Umbria, Italy, commissioned in 2000.
Who operates TERNI?
TERNI is operated by Edison SpA [100%].
How much CO₂ does TERNI emit?
TERNI has measured emissions of about 25,753 tonnes of CO₂ per year (EU ETS).