The largest electric utility in Illinois is rolling out a program for a vehicle-to-grid (V2G) electric school bus-charging pilot with three Chicagoland school districts, testing the functionality of bidirectional chargers that could make energy cheaper for customers and reduce grid load.
The Commonwealth Edison Co. (ComEd) announced in September that it would begin the testing phase of its novel V2G electric school bus charging pilot, the first of its kind in northern Illinois, coinciding with the beginning of the school year.
The utility began testing with the River Trails, Troy, and Wauconda school districts—which have all had electric buses for more than two years—in northern Illinois. It is currently collecting data from bidirectional chargers, EV chargers that flow energy both ways. Its testing will determine how the chargers and buses can best transfer energy when parked and plugged into the grid.
“We’re not only working with these three school districts, we’re testing with them, but we’re also seeking input from other school districts to better understand their interest in V2G and how we could support their needs as we design new research and development efforts and potentially new programs,” said Cristina Botero, senior manager for beneficial electrification at ComEd.
According to the utility, bidirectional charging could result in a number of benefits, such as reducing grid demand during peak hours; lowering costs and energy usage for customers; and funding school districts that participate in the program. Botero said the goal is to eventually have a scalable model for the V2G program that other districts across Illinois could opt into “later down the line.”