NREL and Sempra Energy’s cooperative, multiyear projects exploring low-carbon fuels and microgrid technology have reaped success—including some groundbreaking achievements. In 2013, Sempra Energy subsidiary San Diego Gas & Electric Company (SDG&E) and NREL established the nation’s first utility-owned community microgrid in Borrego Springs, California. In 2017, Sempra Energy subsidiary Southern California Gas Company (SoCalGas) and NREL partnered to create, validate, and integrate the nation’s first carbon-free, power-to-gas pilot system. In 2019, NREL and partners SoCalGas and Electrochaea joined to dedicate the nation’s first hydrogen-to-methane bioreactor. Now, a memorandum of understanding (MOU) signed in June 2021 formalizes a joint effort by NREL and Sempra Energy to continue advancing clean energy systems. It is designed to foster technical and scientific collaboration among both organizations, aligning their independent commitments to mutual goals.