By Militsa Mancheva, SeeNews Renewables.

January 11 - Clean energy company Hawaii Gas is exploring various options either to purchase or develop raw biogas and bio-methane, which will account for 15%-20% of its total fuel supply, Pacific Business News said Friday.

The gas utility, part of US investment fund Macquarie Infrastructure Company LLC (NYSE:MIC), has issued a request for proposals to buy renewable natural gas in or outside the state for between five and 20 years, business development and corporate affairs senior vice president, Joseph Boivin, was quoted as saying. Interested suppliers are to submit their proposals by March 7.