€10m · Series A, equity and debt · Cleantech · Mechelen, Belgium · Announced September 2026
Octave.energy, which combines commercial battery storage with energy-management software, has secured €10m in Series A financing. SPDG Growth led the package, joined by imec.istart, BNP Paribas Fortis and KBC. The capital will support expansion in the Netherlands, France and Germany and further product development, according to the company’s announcement.
The €10m combines equity and flexible debt. The announcement does not disclose the split.
Making the battery earn its place
For a business buying storage, the question is how it changes the electricity bill and what the site can do. Octave’s software coordinates solar use, demand peaks and charging. Our editorial focus is the customer economics: can those uses add up to a dependable return on the installation?
Three perspectives from the EUVC archive help frame that question:
Energy Insights from Energy CVCs — EnBW New Ventures, hosted on EUVC · July 2025. Why storage value depends on combining uses and integrating with the energy system.
How enspired reinforces the energy transition — EnBW New Ventures, hosted on EUVC · December 2025. A related business model showing how trading can turn flexibility into revenue.
Europe’s Climate Goals Require a Green Power Grid — Emily Nixon of noa, hosted on EUVC · April 2025. The infrastructure and permitting constraints surrounding electrification.
Taking the model across borders
Octave plans to grow local sales and operations teams alongside installation partners. For EUVC, the next question is how consistently that network can deliver attractive customer economics across different electricity markets.
Octave’s expansion announcement — Company source · September 2026. Financing structure, target markets and deployment plans.
Funding data: Tech.eu Funding Explorer. Financing details checked against the company announcement.
Date note: Tech.eu records the round on 4 September 2026; the company announcement specifies September 2026.
