OutSmart Power Systems, a US-based energy management developer previously backed by strategic investor Manifold Products, has raised $200,000 towards a $4m equity round.

Canada-based power producer Alberta Energy has invested C$3.35m ($3.1m) in Enerkem Technologies, a Montreal-based provider of synthetic gas and other alternative fuels.

After twice falling into bankruptcy, Think Global, a Norwegian electric-car maker, has raised a further $40m from venture capitalists and corporate venturers in what the company hopes will be its final funding round until it turns cashflow positive next year.

Solaria, a California-based developer of solar energy panels, has raised $45m in its fourth funding round but has seen a potential change in its corporate venturer backers.

US energy utility PG&E Corporation has renamed its corporate venturing unit after making its first investment since restarting the division in December.

US-based cleaning company Waste Management has made a strategic investment in MicroGreen Polymers, a firm developing technology to reduce the amount of plastic required in consumer products.

Dow Venture Capital, the in-house investment division of the US chemicals company, has invested $3m as part of a second round of funding for Clean Filtration Technologies.

The host of corporate venturers backing US-based solar power producer BrightSource Energy has increased as part of a $150m fourth funding round.