As a Calgarian - please let this actually happen...
Edmonton bought some EV buses but has struggled with range and reliability - with the company that made them eventually going bust.
But that is not a reason to give up on the concept. It takes time to mature technology. EVs used to suck, now they are amazing. Just like with passenger cars, infrastructure is clutch. Range limitations are predominantly only an issue on the coldest days. Bus drivers in Calgary get at least two 15 minute breaks and a half hour lunch break. Install chargers strategically on routes where range is an issue and you could get a full hour of charging during times the bus would be out of service anyway. Heck - you could just install some InductEV wireless bus chargers at key stops and you could be charging at 400kW without even needing to plug it in.
These are solvable problems - it just takes some trial and error to figure out the optimal solution. If you wait for perfect, you will wait forever.
People regularly try to convince me that EVs don't work in the cold, or for going to remote areas. I backcountry ski in the Rockies and routinely drive and park my EV (Ioniq 5) in -20C weather. Hell, I sleep in the back when I'm getting an early start on things and use utility mode and insulated window covers to keep things nice and comfy overnight. EVs used to suck - now they're awesome. Minor adaptation of how I manage 'fuel' has given me a BETTER solution.