Green fuel and biochar producer Cool Planet Energy Systems has completed a $100m series D that featured petroleum company Concord, Google Ventures, BP, Exelon and Energy Technology Ventures.

Cool Planet Energy Systems, a US-based developer of green fuel technology, has closed a $100m series D round led by Singapore-based petroleum producer Concord Energy and venture capital firm North Bridge Venture Partners.

The two were joined by Google Ventures, the corporate venturing arm of internet company Google, as well as the Constellation division of energy company Exelon, petroleum company BP and Energy Technology Ventures, the fund formed by GE, ConocoPhillips and NRG Energy.

UBS and Goldman Sachs led a…