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Cassano d’Adda

Gas power plant in Lombardy, Italy. Approximate location 45.5115, 9.5098.

GasLombardyItalyCCGT · HRSG

Cassano d’Adda is a 969 MW gas power station in Lombardy, Italy. It is operated by A2A. Based on reported annual generation of 1,547 GWh, it can supply roughly 442k homes. It ranks #27 of 489 Italy power plants by installed capacity. Commissioned in 2003, it is around 23 years old — relatively modern. In context, gas supplies about 47.2% of Italy's electricity; the national grid averages 285 gCO₂/kWh (48.8% low-carbon) (2025).

969Source-backed capacity
1HRSG unit(s)
1,547GWh reported / yr
442,000homes powered
2003commissioned (~23 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1002861.

Data status

Known data

FacilityCassano d’Adda WRI
CountryItaly · Lombardy WRI
Coordinates45.5115, 9.5098 WRI
FuelGas WRI
MW installed capacity969 MW WRI source record; scope not independently normalised
OwnerA2A WRI
Commissioned2003 WRI
TechnologyCCGT · HRSG WRI
GWh reported / yr1,547 GWh/yr WRI

Calculated from dataset

CO₂ emissions618,800 t CO₂/yr calculated
Capacity rank in country#27 of 489 calculated
Fuel-specific rank in country#14 of 118 calculated
Capacity vs country/fuel peers2.99× · 324 MW median · 118 peers calculated
Homes-powered equivalent442,000 calculated from reported generation
Climate12.5°C · HDD 2,374 derived from coordinates
Environmental severityC3 · 35/100 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 848 MW for Cassano D, 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 L100000400361); fuel: WRI source-record fuel

In context: how this plant compares

At 969 MW, Cassano d’Adda 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.

Reported generation trend

2015: 583 GWh20152016: 760 GWh20162017: 1,547 GWh20172k GWh

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

Owner

Operated by A2A.

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 45.5°N — which shapes how much energy it can produce and how its output varies through the year.

12.5°Cannual mean temp
2,374heating degree-days (base 18°C)
373cooling degree-days (base 18°C)
88 melevation

Monthly mean temperature

J: 2 °CJF: 4 °CFM: 8 °CMA: 12 °CAM: 17 °CMJ: 20 °CJJ: 23 °CJA: 22 °CAS: 19 °CSO: 13 °CON: 7 °CND: 3 °CD23 °C

Heating degree-days here run 3% 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

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)
35/100environmental-severity index
20.8°Cseasonal temperature swing
141 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 #14 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 45.5115, 9.5098 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Cassano d’Adda?

Cassano d’Adda is a 969 MW source-record gas power plant in Lombardy, Italy, commissioned in 2003.

How much electricity does Cassano d’Adda generate?

Cassano d’Adda generates about 1,547 GWh of electricity per year.

How many homes can Cassano d’Adda power?

Its output is enough to supply roughly 442,000 homes.

Who operates Cassano d’Adda?

Cassano d’Adda is operated by A2A.

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