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OSTIGLIA

Gas power plant in Lombardy, Italy. Approximate location 45.0603, 11.1374.

GasLombardyItalyCCGT · HRSGSiemens Energy: SGT5-9000HLCO₂ measured

OSTIGLIA is a 1,168 MW gas power station in Lombardy, Italy. It is operated by E On. Based on reported annual generation of 1,110 GWh, it can supply roughly 317k homes. It ranks #15 of 489 Italy power plants by installed capacity. Commissioned in 2013, it is around 13 years old — relatively modern. Its annual emissions of 998,588 t CO₂/yr (EU ETS verified (EUTL 2023)) are equivalent to about 233k 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).

1,168Source-backed capacity
3HRSG unit(s)
1,110GWh reported / yr
317,114homes powered
998,588t CO₂ / yr (EU ETS verified (EUTL 2023))
2013commissioned (~13 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1002917.

Data status

Known data

FacilityOSTIGLIA WRI
CountryItaly · Lombardy WRI
Coordinates45.0603, 11.1374 WRI
FuelGas WRI
MW installed capacity1,168 MW WRI source record; scope not independently normalised
OwnerE On WRI
Commissioned2013 WRI
TechnologyCCGT · Siemens Energy: SGT5-9000HL · HRSG WRI
GWh reported / yr1,110 GWh/yr WRI
CO₂ emissions998,588 t CO₂/yr measured · EU ETS verified (EUTL 2023)

Calculated from dataset

Capacity rank in country#15 of 489 calculated
Fuel-specific rank in country#6 of 118 calculated
Capacity vs country/fuel peers3.60× · 324 MW median · 118 peers calculated
Homes-powered equivalent317,114 calculated from reported generation
Climate13.5°C · HDD 2,192 derived from coordinates
Environmental severityC3 · 37/100 derived from coordinates

Not available

GWh reported / yrNot available not in 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 1,168 MW for Ostiglia power station, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

Capacity claim grade: A2_GENERAL_REVIEW - recommended action: manual_source_check - confidence: medium_low. This follows a claim-based data model: value + scope + source + confidence, rather than silently overwriting records.

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: GEM tracker 2026 (location L100000400412); fuel: WRI source-record fuel

In context: how this plant compares

At 1,168 MW, OSTIGLIA 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); Siemens Energy: SGT5-9000HL. 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.

998,588 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

233kpassenger cars driven for a year
130khomes' yearly energy use
17 milliontree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions per EU ETS verified (EUTL 2023) (measured for US EPA/EU ETS, modelled for Climate TRACE).

Reported generation trend

2015: 657 GWh20152016: 860 GWh20162017: 1,110 GWh20171k GWh

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

Owner

Operated by E On. All plants by this company →

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 humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 45.1°N — which shapes how much energy it can produce and how its output varies through the year.

13.5°Cannual mean temp
2,192heating degree-days (base 18°C)
569cooling degree-days (base 18°C)
8 melevation

Monthly mean temperature

J: 2 °CJF: 5 °CFM: 9 °CMA: 13 °CAM: 18 °CMJ: 22 °CJJ: 24 °CJA: 24 °CAS: 20 °CSO: 14 °CON: 8 °CND: 3 °CD24 °C

Heating degree-days here run 11% 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: 46/100 — 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

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. 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)
37/100environmental-severity index
22.2°Cseasonal temperature swing
128 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

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 #6 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

Location

Coordinates 45.0603, 11.1374 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is OSTIGLIA?

OSTIGLIA is a 1,168 MW source-record gas power plant in Lombardy, Italy, commissioned in 2013.

How much electricity does OSTIGLIA generate?

OSTIGLIA generates about 1,110 GWh of electricity per year.

How many homes can OSTIGLIA power?

Its output is enough to supply roughly 317,114 homes.

Who operates OSTIGLIA?

OSTIGLIA is operated by E On.

How much CO₂ does OSTIGLIA emit?

OSTIGLIA has measured emissions of about 998,588 tonnes of CO₂ per year (EU ETS verified (EUTL 2023)).

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