The MTA actually went from using a lot of hybrid buses to fully diesel at one point[0], and now they're slow rolling out fully electric by...2040[1]. Just far out enough they can do basically nothing over the next couple years, and still claim they're on track.
> now they're slow rolling out fully electric by...2040
The MTA operates 5,800 buses [1]. At 525 kWh per bus [2], that’s 3 GwH of batteries fleetwide. Charging those daily is enough to keep a large power plant busy.
[0]https://nypost.com/2013/06/30/mta-hasnt-purchased-a-hybrid-b...
[1]https://www.timeout.com/newyork/news/200-electric-buses-are-...