Eclipse Secures €20M Series A for Battery Storage Marketplace

Eclipse, a nascent player in the energy storage optimization market, has successfully closed a €20 million Series A funding round. The capital infusion was led by a significant partnership with BNP Paribas, alongside participation from investment fund Noria. This funding marks a pivotal moment for the company, co-founded by former Electra executive Augustin Derville, as it aims to establish a financial marketplace for battery assets.

The core challenge Eclipse addresses is the inherent intermittency of renewable energy generation. Solar and wind power production often outpaces grid capacity or demand, leading to significant energy wastage. In France alone, an estimated 3 TWh of electricity was lost in 2025 due to insufficient storage capabilities, a figure that has seen a concerning year-on-year increase. Eclipse's proprietary platform, Flowstream, is designed to mitigate this by algorithmically managing battery storage. It intelligently purchases electricity during periods of low prices and grid surplus, stores it, and then resells it during peak demand when prices are significantly higher, thereby generating consistent daily profits.

What distinguishes this funding round is the strategic involvement of BNP Paribas. Beyond its role as an investor, the global financial institution is acting as a crucial offtaker, providing long-term revenue guarantees for battery asset owners. Historically, such assurances have been the domain of major energy conglomerates like Engie, TotalEnergies, and EDF. These established entities possess the financial heft to de-risk projects for lenders, enabling asset owners to secure vital financing. Eclipse's collaboration with BNP Paribas injects this much-needed financial credibility, bridging a gap that Derville acknowledges the startup could not fill alone.

This symbiotic relationship leverages BNP Paribas' extensive experience in European electricity trading and its robust financial structuring capabilities. In return, Eclipse offers its advanced optimization algorithms to enhance the profitability and bankability of energy storage projects. As stated by Olivier Osty, Deputy Chief Executive Officer of BNP Paribas and CEO of BNP Paribas CIB, the partnership aims to foster the development of "bankable, resilient, and scalable flexibility infrastructure across Europe." This strategic alliance was initially signaled in February 2026, preceding the finalization of the funding round.

The energy storage market is rapidly maturing, with a growing number of battery projects nearing operational readiness. Eclipse currently manages approximately 5% of its ambitious 2 GW target by 2030. However, Derville notes that securing a single offtake agreement with BNP Paribas could instantly double their managed capacity, highlighting the potential for rapid scaling. The newly acquired capital will fuel the deployment of Eclipse's initial owned storage assets, further enhance the Flowstream platform, and expand its offtake services across the continent.

With a team of around twenty professionals, Eclipse currently operates in France and Belgium and has identified Spain as its next key expansion market. This Series A funding, following an earlier €5.5 million raise supported by entities like Wind Capital, positions Eclipse to play a significant role in optimizing the integration of renewable energy and battery storage within Europe's evolving power grids.