US electrical retailer Best Buy's corporate venturing division, oil and gas developer Alpine and venture capital firm Chrysalix initial backers of Brammo's series B round.

Coda Automotive, a US-based electric car and battery company, is planning to raise $125m in its series D round, according to news provider VentureWire.

Quantum Utility Generation company formed with $1bn from buyout firm and strategic co-investors.

NuvoSun raises $20m from Dow Chemicals in second tranche of the year.

BP and Nuon had backed renewable power group Green Mountain Energy before its planned $350m takeover by NRG Energy.

Flint Hills Resources and Life Technologies have invested in SG Biofuels' A round.

MBA Polymers makes initial close of expected $25m round.

GM Ventures and Itochu Technology Ventures invest $4.2m in lithium-ion battery maker Sakti3.

LG Group spin-outs LS Industrial Systems and LS Cable back Coulomb Technologies' $15m C round.

Solaria closes series D round at $55, excluding a new $10m loan facility from debt provider Western Technologies (WTI).