Le Prologue
Île-de-France, France
Source: OpenStreetMap
Le Prologue is a mapped data center in Île-de-France, France, operated by SFR. DataCentersExposed has documented a 150,775 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
Most sites are mapped — located but awaiting a second source. How we verify
Dot size = disclosed capacity (MW). Smallest = undisclosed, not small.
Overview
source: linkLe Prologue is a mapped data center in France operated by SFR. Available records describe it as an SFR data center with a reported footprint of 150,775 square feet. No ultimate parent above SFR is disclosed in available records.
Operator chain
The grid behind this site
source: Ember · EurostatA 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)- En France, l'arrivée d'énormes centres de données bouscule les territoiresOrange Actualités· Jun 12, 2026
- Choose France 2026 : le détail des investissements annoncésLes Echos· Jun 1, 2026
- Free, OVH, Orange : ce que disent vraiment les indicateurs de panne ce 11 maiNumerama· May 11, 2026
- Alsace. À Strasbourg, l’exploitant de centres de données UltraEdge joue la carte de la proximitéDNA· Apr 27, 2026
- Zeop seul candidat au rachat de SFR RéunionLe Quotidien de La Réunion· Apr 18, 2026
- Comment Microsoft et le lobby de la tech ont fait entrer le secret dans le droit de l’UE sur les centres de donnéesLe Monde.fr· Apr 17, 2026
Environmental permits
source: Géorisques (ICPE)- EQUINIX FRANCE PA70007404508ICPE Enregistrement · Courbevoie 92400 · registered as "EQUINIX FRANCE PA7" · ~134 m from the mapped location