San Diego Gas & Electric ( SDG&E ) will construct vehicle - to - grid ( V2 G ) chargers for at least 3,000 medium and heavy - duty EVs , including buses and pickup trucks . The scheme also supports refrigerated semi - truck trailer electrification . The California Public Utilities Commission approved the five - year scheme largely because of technology that allows buses to send energy back to the grid . It said the project is the nation 's first large - scale charging infrastructure programme of its type .
San Diego Gas & Electric (SDG&E) will construct vehicle-to-grid (V2G) chargers for at least 3,000 medium and heavy-duty EVs, including buses and forklift trucks. The scheme also supports refrigerated semi-truck trailer electrification. The California Public Utilities Commission approved the five-year scheme largely because of technology that allows buses to send energy back to the grid. SDG&E claims the project is the region's first large-scale charging infrastructure programme of its type.