Transforming ENERGY

Managing Grid Impacts Home-Dominant Charging 120 Typical Weekday (uncontrolled) 120 No Home Charging Typical Weekday (uncontrolled) Managed Charging EV Load (unmanaged) Electrical Load, MW 100 Home-L1 37% Home-L2 45% 80 Work-L1 0% Work-L2 0% Public-L2 15% DCFC 3% 60 40 40 20 0 0 4 8 12 Hour of Day Source: NREL EVI-Pro Model • Electrical Load, MW 100 80 60 40 40 20 Home-L1 0% Home-L2 0% Work-L1 17% Work-L2 26% Public-L2 48% DCFC 10% 0 16 20 24 0 4 8 12 16 20 24 Hour of Day Figure. Different charging profiles for EVs Load EV Load (managed) Net Load Hour of the Day Source: Anwar et al. (2022) EVs are not just a "burden” to the grid; flexible EV charging can satisfy mobility needs while also supporting the grid and integration of renewable energy. Vehicles are underutilized assets: Parked ~95% of the time (in United States). • - EV charging profiles can look significantly different if vehicles are charged at different locations or times. • Flexibility is secondary to mobility needs and is enabled by charging infrastructure. Source: Muratori (2020) USAID USAID ONREL FROM THE AMERICAN PEOPLE Transforming ENERGY 21

View entire presentation