TORREVALDALIGA South is a 1,140 MW gas power station in Latium, Italy. It is operated by Tirreno. Based on reported annual generation of 2,374 GWh, it can supply roughly 678k homes. It ranks #17 of 489 Italy power plants by installed capacity. Commissioned in 2004, it is around 22 years old — relatively modern. Its annual emissions of 3,339,651 t CO₂/yr (EU ETS verified (EUTL 2023)) are equivalent to about 778k 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 WRI1002970.
Data status
Known data
Calculated from dataset
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Capacity provenance
The public capacity above is the current source-record value. A 2026 tracker candidate lists 1,140 MW for Torrevaldaliga Sud power station, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).
Data provenance
Source of the capacity and fuel values:
capacity: GEM · 2026 · L100000400469; fuel: WRI GPPD
In context: how this plant compares
At 1,140 MW, TORREVALDALIGA South is well above 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.
3,339,651 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 verified (EUTL 2023) (measured for US EPA/EU ETS, modelled for Climate TRACE).
Key facts
- Load factor
- 24%, from 2,374 GWh of reported generation, in line with the 24% median for 51 gas plants in Italy
- Generation trend
- 798 GWh in 2015 and 2,374 GWh in 2017 (+197%)
- Highest and lowest year
- 2017: 2,374 GWh; 2015: 798 GWh
- Share of Italy gas capacity
- 2.1% of 53,570 MW across 118 plants in this dataset
- Age among peers
- 43 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)).
Reported generation trend
Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by Tirreno.
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 hot-summer Mediterranean climate (Köppen Csa) — Northern Hemisphere, latitude 42.1°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 32% 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: 37/100 — 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 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 #8 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
- Torrevaldaliga Nord power station · Coal · 1,980 MW · Latium
- Viterbo KGAL · Solar · 10.9 MW · Latium
- Centauro · Solar · 8 MW · Latium
- Cassiopea · Solar · 24 MW · Latium
- MONTALTO (Alessandro Volta) · Gas · 3,446 MW · Latium
- MdC Octopus SE · Solar · 15 MW · Latium
Location
Coordinates 42.1241, 11.7624 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is TORREVALDALIGA South?
TORREVALDALIGA South is a 1,140 MW gas power plant in Latium, Italy, commissioned in 2004.
How much electricity does TORREVALDALIGA South generate?
TORREVALDALIGA South generates about 2,374 GWh of electricity per year.
Who operates TORREVALDALIGA South?
TORREVALDALIGA South is operated by Tirreno.
How much CO₂ does TORREVALDALIGA South emit?
TORREVALDALIGA South has measured emissions of about 3,339,651 tonnes of CO₂ per year (EU ETS verified (EUTL 2023)).