Southern California Gas Co. (SoCalGas) said renewable natural gas (RNG) supply now is flowing at most of the natural gas vehicle fueling stations it operates.

California Natural Gas Fuel Consumption

The Sempra Energy utility recently began purchasing RNG from multi-dairy connected Calgren Dairy Fuels in the state. Calgren produces RNG as part of a rapidly growing biomethane industry. Eventually, 18 dairies are to be connected.

In the next three-plus years, 160 RNG production facilities are scheduled to be online in the state to produce more than 15.8 million therms/year, replacing about 119 million gallons of diesel fuel, according to SoCalGas.

California recently enacted legislation expanding the definition of RNG to include organic waste such as dead trees, agricultural waste and vegetation removed for wildfire...