Gamesa has already bought 28.7% of SkyBuilt Power and 25% in WorldWater & Solar Technologies from its corporate venturing fund.

Spanish utility Iberdrola Group's Inversiones Financieras Perseo, and manufacturer Nypro's New Ventures Group reinvested in Morgan Solar and were joined by investment manager Frost Group.

In March, Solazyme aimed to raise $100m but now said it would issue 11.5 million shares, including 1.5 million if demand is strong enough as a so-called greenshoe allotment, at between $15 and $17 each. At the top end of its pricing range, Solazyme would have an initial market capitalisation of $965m.

Alongside Cenovus' Environmental Opportunity Fund in the $19.5m series B round for General Fusion were Bezos Expeditions, the family office of Jeff Bezos, founder and head of online retailer Amazon, and venture capital firms.

Rick Wilson, chief executive of Cobalt, said: "In addition to the generous financial support provided by the Whittemore Collection, we now have the world's most experienced builder of biomass-based businesses on our board supporting us in developing our global enterprise."

Mitsui's corporate venturing unit has joined the consortium investing $45m in clean-tech firm BioAmber and floated Boingo Wireless.

In March, SustainX raised $14.4m from seven investors, including GE Energy Financial Services and VC firms Cadent Energy Partners, Polaris Venture Partners and Rockport Capital Partners, as part of a then-planned $17m round.

There is an opportunity to source-adapt-integrate-adopt a new breed of advanced technologies into new platforms and leapfrog entire legacy generations of capabilities.

In return for selling some equity, SCI has struck a global strategic alliance with semiconductor company Intel and raised more than $19m from General Electric (GE) and venture capital firm Triangle Peak Partners.