Southern California Gas Co., Pacific Gas and Electric Company, and Opus 12 have demonstrated further advancement of a new electrochemical technology that converts the carbon dioxide content in raw biogas to pipeline-quality renewable natural gas, a critical improvement in the science of upgrading waste emissions to renewable gas. The single-step process is designed to use renewable electricity, and thus also provides a way for long-term storage of excess wind and solar power. The twelve-month research and development effort was funded by SoCalGas and PG&E and builds on the success of an initial feasibility study in 2018. More >>