Mapped (unverified)
Data4 Marcoussis
Marcoussis, Île-de-France, France
Source: OpenStreetMap
Data4 Marcoussis is a mapped data center in Île-de-France, France. DataCentersExposed has documented a 18,271 sq ft footprint and 1 environmental-permit record at this site. It runs on France's grid, which was 5% fossil-fuelled at 41 gCO₂e/kWh in 2025 (Ember).
Reporting by Eric Keller · Updated Jun 14, 2026
Real parent
—
Operator
—
Est. capacity
~5-10 MW
Footprint
18,271 sq ft
Grid carbon
41 gCO₂/kWh
Clean electricity
95%
DC power price
12.24¢/kWh
Region
Île-de-France
Status · click to filter
Most sites are mapped — located but awaiting a second source. How we verify
Dot size = disclosed capacity (MW). Smallest = undisclosed, not small.
Overview
source: linkdata center
The grid behind this site
source: Ember · EurostatGrid carbon intensity
41 gCO₂/kWh
Clean electricity
95%
Fossil electricity
5%
Data-center power price
12.24¢/kWh
A large data center in France pays 12.24¢/kWh for electricity — a household pays 29.26¢, 58% more than the data center (Eurostat).
National grid context, not this facility's own metering. Full country picture: France data centers.
In the news
source: Google News (local + English)- À Marcoussis, immersion au cœur de l’un des plus grands data centers d’EuropeLe journal du Grand Paris· Feb 19, 2026
- Centres de données et durabilité : de l’extraction des matériaux à la fin de vie, ce que couvre une analyse de cycle de vieit social· Jan 14, 2026
- Data4, Blue Planet Ecosystems et Paris-Saclay utilisent la chaleur des data centers pour produire des alguesL'Usine Nouvelle· Jul 7, 2025
- Essonne : Colt DCS prévoit d’investir 2,3 milliards d’euros en datacentersmesinfos· May 22, 2025
- Data4 crée le premier datacenter bio-circulaire en EssonneL'Usine Digitale· May 21, 2025
- Des micro-algues produites avec la chaleur d’un data center : « On pourra capter jusqu’à 13 tonnes de CO2 par anLe Parisien· May 21, 2025
Environmental permits
source: Géorisques (ICPE)- ALMAE ex GIE III-V Lab0006508328ICPE Autorisation · Marcoussis 91460 · registered as "ALMAE ex GIE III-V Lab" · ~213 m from the mapped location