Reports have surfaced that fuel cell maker Bloom Energy is raising an additional $150 million dollars in its Series G at a  $2.7 billion pre-money valuation, making it one of the most highly valued cleantech companies in history. This latest round would bring the 11 year old company’s total venture backing to $800 million with investors including New Enterprise Associates, Kleiner Perkins, DAG Ventures, and GSV Capital. Interestingly, the fundraising is begin marketed by Advanced Equities which is known to target groups of high net worth individuals and has raised some concerns in its methods of raising capital for Fisker. [Source DJ VentureWire]