In addition to receiving funding from Blackstone, PQ is seeking further partnerships with power generation companies as it looks to develop a power generation business that stretches through Europe.

Norway-based energy companies Hafslund and Eidsiva are combining their corporate venturing activities with the aim of increasing clean technology growth in the region.

The clean gas power company has raised $18m in debt funding in the last month and is looking to raise a series C round later this year from stategic investors.

Richard Holliday said: "After 10 years with the World Gold Council I have decided to seek new opportunities as an independent consultant."

PTC India, a provider of power trading solutions in the country, has reportedly agreed to set up a private equity fund with an unnamed sovereign wealth fund, according to the chairman of the state-run power trading company.

Alongside Bright Capital in the round were venture capital firms Kleiner Perkins Caufield & Byers (KPCB), August Capital, New Enterprise Associates, Northgate Capital and DAG Ventures.

Corporate-backed biodiesel producer and supplier the Renewable Energy Group sets the range of its IPO, and looks to raise as much as $100m.

Mitsui Ventures - the investment wing of the centuries-old Tokyo conglomerate - led a $14m extended Series C round of funding for GMZ with the new backer providing a further $4.5m.

The biofuel company has brought its series C round a year ahead of schedule with energy companies BP, General Electric and ConocoPhillips joining J.F. Shea and Google in financing the round.