page 14 • Scenarios explore different levels of enhanced VGI deployment for light- duty EVs: • Existing charging follows the “TOU only” charging shape, with no ability to delay or advance EV charging • V1G capabilities allow vehicles to advance or delay to optimize charging behavior for feeder and system needs • V2G expands V1G to allow the ability to discharge to the grid • The sweep of scenarios looks at 3 levels of VGI and a “base case” scenario, varying the level of V1G and V2G EV charging in each scenario Scenarios assess how VGI’s scale impacts savings TOU only V1G V2G Base 100% 0% 0% 20% VGI 80% 20% 0% 80% 10% 10% 80% 0% 20% 50% VGI 50% 50% 0% 50% 12.5% 37.5% 50% 25% 25% 50% 37.5% 12.5% 50% 0% 50% 80% VGI 20% 80% 0% 20% 66.7% 13.3% 20% 53.3% 26.7% 20% 40% 40% 20% 26.7% 53.3% 20% 13.3% 66.7% 20% 0% 80% 1. LDV EV load available for VGI only excludes DC fast charging loads, which by design are inflexible, and level 1 charging which is too slow to enable meaningful charging flexibility Scenarios by share of LDV load available for VGI1