How clean is the grid behind Datacenter Marilyn?

Datacenter Marilyn runs on France's grid, which was 41 gCO₂/kWh and 95% clean in 2025 (Ember).

Where is Datacenter Marilyn located?

Datacenter Marilyn is in Champs-sur-Marne, Île-de-France, France.

Operating

Datacenter Marilyn

Champs-sur-Marne, Île-de-France, France

Datacenter Marilyn is an operating data center in Île-de-France, France. DataCentersExposed has documented a 71,128 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 17, 2026

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Real parent

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Operator

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Est. capacity

~10-30 MW

Footprint

71,128 sq ft

Grid carbon

41 gCO₂/kWh

Clean electricity

95%

DC power price

12.24¢/kWh

Region

Île-de-France

Attribution & capacity confidence:mediumprimary source

Overview

source: link

data center

The grid behind this site

source: Ember · Eurostat

Grid carbon intensity

41 gCO₂/kWh

Clean electricity

95%

Fossil electricity

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)

Environmental permits

source: Géorisques (ICPE)

BALGEVIM II (France Gift)0006500915
ICPE Autorisation · Émerainville 77184 · registered as "BALGEVIM II (France Gift)" · ~215 m from the mapped location

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