Energiefonds Overijssel

Energiefonds Overijssel is a venture capital firm established in 2012 and located in Zwolle, Netherlands. The company is dedicated to supporting the energy transition by providing financial contributions to initiatives and businesses that focus on energy savings or the generation of energy from renewable sources. Backed by the government, Energiefonds Overijssel prioritizes investments in renewable energy and clean energy technology, aiming to foster sustainable practices and innovation within the energy sector.

Karel Asselbergs

Director Participations

Past deals in Rotterdam

S4 Energy

Venture Round in 2016
S4 Energy is a Netherlands-based company that specializes in developing and delivering customized energy storage solutions aimed at stabilizing the supply and demand of renewable energy. Founded in 2010 and headquartered in Rotterdam, S4 Energy collaborates with grid operators, energy consumers, and renewable energy sources. The company offers a range of services, including frequency containment reserve services for the Dutch grid operator TenneT TSO, and it manufactures KINEXT units in Almelo. S4 Energy provides comprehensive solutions encompassing design, construction, and maintenance, along with software that analyzes energy flows for optimized management. Its hardware offerings include various storage technologies such as kinetic storage (flywheels), chemical storage (batteries), electrolytic storage (capacitors), and power conversion systems. By integrating innovative technologies with economic insights, S4 Energy focuses on delivering reliable and cost-effective energy solutions for energy generation, transport, distribution, industrial consumers, and public infrastructure.
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