Sempra Energy's Southern California Gas Co. (SoCalGas) reached out Tuesday to its private- and public-sector stakeholders to seek their support for the natural gas-only utility's effort to create a decarbonized system by mid-century.
The vision, announced earlier this year in a white paper, “California's Clean Energy Future: Imagine the Possibilities," offers an all-of-the-above approach to fighting climate change while keeping energy affordable.
SoCalGas officials met with business sector, government and nonprofit organizations to outline the broad and integrated approach. The strategy includes delivering more renewable natural gas (RNG), with a goal of it reaching 20% of the supply mix by 2030.
A 2016 law mandates that 40% of the methane from the state's landfills and farms be captured with provisions to deliver that energy to customers. SoCalGas emphasized this would bolster RNG supplies.
Other elements of the SoCalGas strategy involve storage with traditional infrastructure, and more advanced carbon capture and storage technology. The utility is looking to a combination of advanced battery storage and the use of zero-emission hydrogen to provide long-term and seasonal energy storage on a scale that the utility claims batteries cannot provide.
SoCalGas also is working with the University of California, Irvine, on power-to-gas technology by mixing excess solar-produced hydrogen with the natural gas system on campus.
Another form of power-to-gas is being pursued in carbon capture and storage in capturing carbon dioxide released from industrial processes and power plants and then recycling it as a raw material to produce a variety of products.