# Eiffage Énergie Systèmes to build battery storage site in northern France

> The 5 January 2026 release awards an EPC design-build contract for a BESS and high-voltage substation to a joint venture between Eiffage Énergie Systèmes and Entech. Envision supplies the batteries; Entech handles long-term operation and maintenance.

- **Source date:** 2026-01-05
- **Original source:** [Eiffage Énergie Systèmes](https://www.eiffage.com/en/media/news/eiffage-energie-systemes-builds-an-energy-storage-facility-bess-in-northern-france)
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- **Language:** en
- **URL:** https://voltformer.com/news/eiffage-bess-hv-substation-france-2026
- **Markdown:** https://voltformer.com/news/eiffage-bess-hv-substation-france-2026.md

## Announced scope

The 5 January 2026 release awards an EPC design-build contract for a BESS and high-voltage substation to a joint venture between Eiffage Énergie Systèmes and Entech. Envision supplies the batteries; Entech handles long-term operation and maintenance.

[Eiffage Énergie Systèmes](https://www.eiffage.com/en/media/news/eiffage-energie-systemes-builds-an-energy-storage-facility-bess-in-northern-france)

## Contract boundary

Eiffage Énergie Systèmes delivers electrical, automation and energy infrastructure packages. It may lead a group consortium or act through a JV or subcontract; client, technology-supplier and long-term operator roles are distinct.

## Project follow-through

Connection capacity, generation, battery power and storage duration are different measures. Final acceptance, permits and commercial-operation dates should be verified separately from targets.

## Related company profiles

- [Eiffage Énergie Systèmes](https://voltformer.com/epc-contractors/eiffage-energie-systemes) · [Markdown](https://voltformer.com/epc-contractors/eiffage-energie-systemes.md)

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