Figure 3.

Scenario comparison of GHGs (measured in millions of tons) for the U.S. public transit bus fleet transitioning to BEBs, generated over a 14-year analysis timeline. In these scenarios, the GHG emissions of the electricity grid are declining linearly from 2021 until a grid 65% cleaner is achieved in 2035. The greatest variability comes from considering the extent of this decline in emissions of the electricity grid. Bistline et al. considered a range from 50 to 79%. In all cases, the results show that electrification is beneficial. Parameters used in the high and low estimates can be found in Table S2.