Octave.energy Raises €10M for European Energy Storage Growth

Belgian clean technology firm Octave.energy has successfully closed a €10 million funding round, signaling a significant push to broaden its reach across the European market. The capital infusion, a blend of equity and flexible debt, will fuel the expansion of its integrated Battery Energy Storage System (BESS) and Energy Management System (EMS) solutions. This strategic move comes as Europe grapples with accelerating electrification outpacing grid infrastructure development, leading to congestion and price volatility for businesses.

The funding was spearheaded by SPDG Growth, the family office associated with the Périer-D’Ieteren family, who have been early backers of Octave.energy since its initial seed investment. Further bolstering confidence in the company's trajectory, imec.istart, BNP Paribas Fortis, and KBC also participated in this Series A financing. This strong investor syndicate underscores the market's recognition of Octave.energy's innovative approach to energy management and storage.

Founded in 2020, Octave.energy has carved a niche by offering comprehensive solutions for industrial clients, small and medium-sized enterprises, and the agricultural sector. Their core offering integrates first-life LFP battery systems with proprietary EMS technology. This synergy allows businesses to optimize their energy consumption, maximize self-generated solar power utilization, mitigate peak demand charges, manage electric vehicle charging infrastructure, and actively participate in energy market flexibility services. The company highlights its commitment to ensuring high system uptime and providing clients the flexibility to choose their preferred market optimization tools.

Octave.energy's operational track record is already substantial, having deployed over 200 MWh of storage capacity and serving more than 400 businesses. Notable clients, including Colruyt Group, McDonald’s, Eneco, Naturgy, and Nextensa, attest to the company's proven ability to deliver value. Demonstrating robust financial health, Octave.energy has maintained profitability for three consecutive years, achieving €16 million in revenue in 2025. This financial stability provides a strong foundation for its ambitious European expansion plans.

The newly acquired capital will be instrumental in establishing and growing local sales and operations teams in key European markets, including the Netherlands, France, and Germany. Octave.energy also intends to leverage its existing network of installation partners to accelerate its market penetration. Initial projects are already live in Luxembourg, the Netherlands, and Spain, showcasing the company's immediate impact beyond its home base.

Beyond geographical expansion, the investment will also support the ongoing enhancement of Octave.energy's EMS and asset management platforms. A critical focus will remain on ensuring the longevity and optimal performance of battery systems throughout their entire operational lifespan, a key differentiator in the increasingly competitive energy storage sector. The company's integrated approach addresses the growing need for intelligent energy solutions that can alleviate grid strain and unlock new revenue streams for businesses navigating the energy transition.