Abstract:Three California IOU electric vehicle (EV) charging infrastructure programs were evaluated to assess emissions benefits associated with each program. Charging session data from 2017 to 2023 was analyzed in conjunction with California electric grid hourly emissions rate to determine the observed emissions for each program. Three scenarios were devised to assess the emissions benefits of deploying multi-unit dwelling and workplace charging to inform program design and investment strategy. The study found that public, daytime charging delivers more emissions benefits compared residential, overnight charging.