First contract signed in Belgium for the construction of a 170 MW / 340 MWh battery energy storage system (BESS), in a temporary consortium with Eiffage Énergie Systèmes

PRESS RELEASE

First contract signed in Belgium for the construction of a 170 MW / 340 MWh battery energy storage system (BESS), in a temporary consortium with Eiffage Énergie Systèmes

Quimper, 27 October 2026 at 5:45 p.m. – Entech (FR0014004362 – ALESE), a technology company specialising in energy storage and the intelligent management of renewable energy, announces the signing of a contract for the construction of a 170 MW / 340 MWh battery energy storage system (BESS) through a temporary consortium with Eiffage Énergie Systèmes. The two companies intend to prioritise this form of cooperation going forward and have agreed to bring their joint venture partnership established in 2024 to an end once the projects currently under construction have been delivered.

Joint venture achieves its objective

Over the past two years, the joint venture has secured several major contracts, enabling the Eiffage Énergie Systèmes and Entech teams to combine their expertise and contributing to both partners’ business activity and financial performance under the agreed allocation (40% Entech / 60% Eiffage Énergie Systèmes).

As this arrangement is no longer suited to their needs, Entech and Eiffage Énergie Systèmes have mutually agreed to bring the joint venture partnership to an end and move to project-by-project cooperation. This decision does not affect Entech’s short- or medium-term objectives under its 2029 roadmap.

Contract signed in Belgium through a consortium with Eiffage Énergie Systèmes

Entech announces that it has signed, through a consortium with Eiffage Énergie Systèmes, a contract for the construction of a battery energy storage system in La Louvière, Belgium.

The contract has been awarded by Aukera, the pan-European renewable energy and battery storage platform backed by AtlasInvest, Reggeborgh and SFPIM (Belgium’s sovereign wealth fund).

The project covers the turnkey construction of a 170 MW / 340 MWh battery energy storage system (BESS), to be connected to ELIA’s Belgian transmission grid, with commissioning scheduled for mid-2027.

The project also includes a two-year operations and maintenance (O&M) agreement.

Accelerating international expansion

Entech has strengthened its leadership in the utility-scale energy storage market, demonstrating since 2025 its ability to scale up and deliver major projects in France and internationally.

This step change in scale is already reflected in the results for the first half of 2026, with strong growth in revenue and profitability, providing Entech with the financial capacity to accelerate its international expansion.

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Upcoming financial calendar (after market close): 23 February 2027: 2026 consolidated annual revenue

ABOUT ENTECH

Entech develops solar power generation, energy storage and power conversion solutions controlled by intelligent software systems that support the growing and cost-effective integration of renewable energy into the energy mix. Entech Construction designs, develops and installs ground-mounted solar power plants and battery energy storage systems for developers. Entech Solutions focuses on the design, development and installation of rooftop and solar carport systems, as well as the prototyping and development of hydrogen projects for industrial customers and end users. Entech Energy & Services owns and operates photovoltaic assets and battery energy storage systems (BESS).

Founded in Quimper in 2016, Entech has completed more than 400 projects worldwide and today employs nearly 250 people. Selected by La French Tech for its Green20 programme in 2021, Entech is recognised for its capacity for innovation. The Group is also part of a committed ecosystem dedicated to advancing the energy transition.

For more information: https://www.entech-se.com/ and LinkedIn

Contacts

www.entech-se.com