Storage site at Grandpuits
A battery of 43 MW and 43 MWh in Grandpuits-Bailly-Carrois, on RTE’s transmission grid, in service since 21 April 2023. Every fact below is the national register’s own, and a field not shown is one the register leaves blank.
In the national register
| Power | 43 MW |
| Energy | 43 MWh |
| Hours at full power | 1.0 |
| Charging power | 43 MW |
| In service | 21 April 2023 |
| Commune | Grandpuits-Bailly-Carrois, Seine-et-Marne, Île-de-France |
| Network | RTE, 63 kV |
| Substation it connects through | GRAN7 |
| Placed on the map | at the centre of its commune, Grandpuits-Bailly-Carrois, from geo.api.gouv.fr |
| EIC code | 17W000001600747U |
| Name as filed | GRAN7S01-STOCKAGE N0 01 DE GRANDPUITS |
What is not published
Who owns this battery, who trades its power, and what it earns: the register carries none of these, and no French body publishes a battery’s metered output or the instructions RTE gives it.
Source: Registre national des installations de production et de stockage d’électricité, register of 31 August 2026, on ODRÉ, Licence Ouverte 2.0. Substation positions from Caparéseau.