en.Wedoany.com Reported - The French Energy Regulatory Commission (CRE) has launched a new tender to procure up to 30 megawatts (MW) of battery storage capacity in French Guiana, aiming to enhance grid reliability and promote renewable energy integration in the overseas territory.

Project developers must submit bids by June 15, 2027. The procurement is set for a 30 MW, two-hour battery energy storage system, with projects ranked by economic efficiency until the target capacity is reached.

CRE stated that battery storage plays a key role in France's non-interconnected power systems, including overseas territories and Corsica, by facilitating the integration of variable renewable energy and reducing overall system costs.

The tender will value multiple grid services, including energy arbitrage, primary frequency regulation reserves, and inertia provided by rotating machinery. However, virtual inertia provided by power electronics will not be eligible.

CRE highlighted the advantages of battery systems capable of providing primary frequency regulation reserves for the Cayenne grid, noting that they can alleviate operational constraints and reduce reliance on the Larivot thermal power plant.

In this procurement, the regulator will not reserve capacity for pumped storage hydropower projects. CRE stated that this decision reflects the lack of specific pumped storage deployment targets in France's 2024-2033 multi-year energy plan draft as of the bid submission deadline.

Looking ahead, CRE said it will launch a new study on pumped storage projects by early 2027 to prepare for future support schemes in other non-interconnected territories. It also plans to publish the terms for the next storage procurement in Mayotte in the first half of 2027.

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