NWJ MET DERVAL
A battery of 1.25 MW and 1 MWh in Derval, on Enedis’s distribution grid, in service since 20 July 2021. 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 | 1.25 MW |
| Energy | 1 MWh |
| Hours at full power | 0.8 |
| Charging power | 1.1 MW |
| In service | 20 July 2021 |
| Commune | Derval, Loire-Atlantique, Pays de la Loire |
| Network | Enedis, HTA |
| Substation it connects through | Derval (DERVA) |
| Placed on the map | at the distribution substation it connects through (Derval), from Caparéseau |
| EIC code | 17W000001313316K |
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.