Through GE's Power & Water and Global Research businesses, the company will provide assistance to Kinrot Ventures' portfolio of water companies.

Soladigm, which develops energy-efficient glass for buildings, raises $30m in its series C round after GE last month selected Soladigm as one of 12 business partners for investment and commercial partnerships through its ecomagination Challenge, a $200 million corporate venturing fund.

Sumitomo gains a seven-year guaranteed mineral supply contract from Molycorp after investment in rare earths mining company following China's decision to limit exports to Japan following a diplomatic incident in the summer.

News provider Financial Times said Sumitomo's was "considering a range of possibilities," including an investment in mining company Molycorp.

Ireland-based utility ESB's corporate venturing fund has invested $7m in Bioflame.

US-listed industrial conglomerate General Electric backed OPower from its $200m Ecomagination clean-tech corporate venturing fund and the firm has subsequently closed a $50m B round

SSE Venture Capital and ABB Technology Ventures back Aquamarine Power's wave energy technology.

Pentalum Technologies raised $9m in its first round from venture capital firms Cedar Fund, Evergreen Venture Partners and Draper Fisher Jurvetson in July. The round was then kept open to allow ABB in.

Venture capital firm North Bridge Venture Partners led the $8m round in CoolPlanetBioFuels as a repeat investor with GE Energy Financial Services also participating.

General Electric's $200m Ecomagination Challenge finds an initial 12 companies to support out of 70,000 clean-tech entries.