Proterra, a US-based maker of battery-powered electric buses, is reported by Fortune to have added $10m to its series C round, taking it to $34m.
Previously, in October 2013, Proterra announced that it had raised $24m in a series C funding round which included two new strategic electric industry investors, Edison Energy, a subsidiary of Edison International, and retail energy supplier Constellation, a subsidiary of US-based energy provider Exelon Corporation; previous investors who participated in the round included GM Ventures,…