Deeptech energy startup Granarium Technologies, spun out from VTT, has raised over €1 million Pre-Seed funding.

BSV Ventures and Beamline led the round, with participation from FiBAN (Finnish Business Angels Network), EstBAN and LatBAN.

VTT has transferred the underlying technology and IP to the newly established company.

Grid volatility is increasing across Europe, while EU requirements, including grid codes and resilience frameworks, are tightening. The transition to renewable energy and electrification is creating structural demand for fast-response power storage, with UBS forecasting global energy storage demand to grow by approximately 40 per cent year over year in 2026.

Granarium’s renewable energy storage technology is built on a nanocellulose-based material platform that binds biocarbon structures for power storage, enabling up to 80 per cent lower production capital expenditure in safe, scalable, and locally producible systems.