Yvette Go, investment manager at SET, said: "O-Flexx's proprietary thermo-electric solution is absolutely unique. What makes the technology significant is that it opens up markets where electricity generation from waste heat was never feasible before."

O-Flexx Technologies, a Germany-based provider of parts to allow waste heat to be used, has raised €6.7m ($9.5m) in its extended series A round from a consortium including Netherlands-based SET Venture Partners, an independent firm with local utility Delta as a limited partner.

The other investors in the round were Atmos, BankInvest, Emerald Technology Ventures, Partech International, SAM and Schneider Electric Ventures, the corporate venturing unit of France-based industrial group Schneider merged to form Aster Capital.

Founded in 2006 with backing from Partech, O-Flexx subsequently raised undisclosed amounts in May 2007 and June 2009.

Michael Stuer Lauridsen, partner at BankInvest New Energy Solutions and chairman of O-Flexx Technologies, said: "The investment will be used to run a manufacturing plant and for commercial introduction."

Yvette Go, investment manager at SET, said: "O-Flexx’s proprietary thermo-electric solution is absolutely unique. What makes the technology significant is that it opens up markets where electricity generation from waste heat was never feasible before."

James Mawson

James Mawson is founder and chief executive of Global Venturing.