By Jim McDowall, Matthew Paiss, and Michael Ropp The Codes and Standards Facilitating the Design and Adoption of Energy Storage for Power System Applications Keeping pace with evolving safety codes and standards. E NERGY STORAGE, PRIMARILY IN THE FORM of lithium-ion (Li-ion) battery systems, is growing by leaps and bounds. Analyst Wood Mackenzie forecasts nearly 12 GWh of deployments in 2021 in the United States alone. Installations of more than 100 MW and hundreds of megawatthours are becoming commonplace. How we arrived here was not so easy. The early systems were designed and installed largely in the absence of safety standards and codes, with manufacturers and system integrators taking their individual approaches to safety. Missteps have been made, as indicated by the Electrical Power Research Institute's Battery Energy Storage System Failure Event Database (storagewiki.epri.com), ©SHUTTERSTOCK.COM/PETRMALINAK Digital Object Identifier 10.1109/MELE.2021.3115556 Date of current version: 1 December 2021 2325-5897/21©2021IEEE IEEE Electrification Magazine / DECEMBER 2021 29http://storagewiki.epri.com http://www.SHUTTERSTOCK.COM/PETRMALINAK