Two dedicated SME Instrument projects (Teraloop ESS and Teraloop EES) focused on developing their 3rd generation flywheel storage system.
TERALOOP OY
Finnish SME developing grid-scale energy storage using 3rd generation flywheel technology for renewable energy integration and decarbonization.
Their core work
Teraloop develops grid-scale energy storage systems based on proprietary 3rd generation flywheel technology. Their core product is designed to be scalable and sustainable, targeting the growing need for large-scale energy storage to support renewable energy integration. The company followed the classic H2020 SME Instrument pathway (Phase 1 feasibility, then Phase 2 full development), indicating a technology that progressed from concept validation to commercial readiness during 2018-2021. They also contribute their storage expertise to multi-partner island decarbonization projects.
What they specialise in
Participation in IANOS, an island decarbonization project involving virtual power plants and renewable energy communities.
IANOS project (2020-2025) targets integrated solutions for island decarbonization and smartification, a new application domain for their storage technology.
How they've shifted over time
Teraloop's H2020 journey is a textbook technology maturation arc. In 2018-2019, they focused exclusively on developing their own flywheel energy storage product through SME Instrument funding (Phase 1 then Phase 2). By 2020, having advanced their core technology, they began applying it in broader energy system contexts — joining the IANOS consortium to contribute storage capability to island decarbonization, virtual power plants, and local energy communities. This shift from pure product development to real-world deployment in complex energy ecosystems signals commercial readiness.
Teraloop is transitioning from technology development to deployment in integrated energy systems, making them increasingly relevant for projects needing proven storage solutions for renewable energy grids and island microgrids.
How they like to work
Teraloop operates primarily as a technology owner — they coordinated both of their product-focused projects independently through the SME Instrument, then joined IANOS as a specialist partner contributing their storage technology to a larger consortium. The IANOS project accounts for most of their 33 partners across 9 countries, suggesting they are comfortable operating in large multi-national consortia when deploying their technology. For consortium builders, expect them to contribute specific storage technology expertise rather than project management capacity.
Through IANOS, Teraloop connects to a network of 33 partners across 9 countries, primarily in the Mediterranean and Northern European energy sector. Their direct coordination experience is limited to single-entity SME Instrument projects.
What sets them apart
Teraloop occupies a rare niche: flywheel-based grid-scale energy storage. While most energy storage companies focus on batteries (lithium-ion, flow batteries), flywheel technology offers advantages in cycle life, response speed, and environmental sustainability — no rare earth materials or chemical degradation. Their successful progression through both phases of the SME Instrument, combined with deployment in the IANOS island energy project, suggests a technology that has moved beyond the lab. For consortium builders seeking alternatives to battery storage, Teraloop represents a differentiated technology partner.
Highlights from their portfolio
- Teraloop EESEUR 2.4M SME Instrument Phase 2 award — the largest single grant — funding full development and scale-up of their flywheel energy storage system.
- IANOSLarge Innovation Action (2020-2025) applying their storage technology to real island decarbonization scenarios including virtual power plants and geothermal hydrogen integration.