Correction: An earlier version of this data story stated that Michigan announced that it will dedicate $13 million of VW Settlement funds to electric school buses. This has been corrected to reflect that Michigan announced it will dedicate $4.2 million of VW Settlement funds to electric school buses.
School is back in session and, while most students will still be riding diesel-fueled buses, a recent surge in investment is set to significantly increase the number of electric school buses in the near future. National electric school bus deployment, which was between 150 to 300 vehicles through the first half of 2019, could more than triple following a major announcement in August from the electric utility Dominion Energy, which plans to deploy 1,000 electric school buses by 2025 and fully electrify school buses in its territory by 2030.
Public funding for electric school buses is also on the rise. In September alone, the amount of Volkswagen Settlement funds allocated to electric school buses went from just $4 million to more than $28 million, after Virginia’s announcement to dedicate $20 million from the Volkswagen Settlement to electric school buses and Michigan’s announcement to dedicate $4.2 million of Volkswagen Settlement funds to electric school buses.
Two unique characteristics of electric school buses make this technology particularly valuable. First, the health and financial benefits provided by electric school buses accrue directly to children. The air quality inside an electric bus is reported to be six times healthier than inside a diesel bus and electric school buses can bring school districts significant savings due to lower operating and fuel costs.
Second, because electric school buses are idle for long and predictable periods of time, they are uniquely well-suited to enable bi-directional energy exchange, known as “vehicle-to-grid” (V2G) functions. Within V2G functions, school bus batteries not only consume electricity by charging, but also discharge stored electricity to the grid when it is valuable for them to do so, for example, during periods of high electricity demand. V2G functions have the potential to bring significant value to electric utilities by increasing electric grid reliability and efficiency. At least eight utility V2G-related programs have been filed since 2018 valued at more than $70 million. Under one such program by New York utility Consolidated Edison, electric school buses have already begun transporting students and the bus batteries will begin performing V2G in November when students are on Thanksgiving break.
Electric utilities also play a vital role in deploying more electric school buses through vehicle and charging infrastructure investments. Through September 2019, electric utilities in nine states have filed at least 16 programs that include school bus electrification. Six of these programs have been approved, three have been rejected, and seven are still pending decisions (see table below for a summary of approved electric school bus utility investments).