The Germany-based power supplier is also set to invest $15m in an as yet undisclosed green technologies fund.

Calysta has also entered a collaboration agreement with Cargill that will involve Cargill assisting it with manufacturing and marketing efforts.

The smart energy-focused Set Fund II has secured Shell, Essent and Delta as limited partners and expects to reach a final close by the end of March.

Trepp returned to back the energy asset management company, after leading its $3.7m series A round in 2014.

SAIC Motor, Applied Materials and an undisclosed automotive manufacturer combined for a round that followed the battery developer's $6.7m round last year.

Corporate-backed VC fund Shift Invest has provided an undisclosed amount for GreenA, which plans to commercially launch its biodegradable polymer this spring.

The First Solar-backed microgrid developer attracted Total and Caterpillar's corporate venturing units for a series A round that will support geographical expansion.

The industrial product maker's latest fund investment is in GRC SinoGreen Fund III, a China-based investor in green and environmental technologies.