EnerTech Capital has raised $75 million so far for a third venture fund targeting investments in the energy sector, according to VentureWire (subscription required).

The fund, which began raising capital in 2005, appears to be running a permanent fund-raising campaign. It wants to raise a total of $250 million. Limited partners in the new fund include California Public Employees’ Retirement System, Dow Ventures, Kuwait Petroleum Co., Abu Dhabi-government affiliated investment vehicle Masdar Clean Tech Fund and holding company Acorn Factor Inc., according to the report.