About one year ago, GoRaleigh took delivery of five battery electric buses from Proterra - 2 40’ buses of their earlier Catalyst model (the same that GoTriangle, Duke University, and RDU Airport have) and 3 35’ buses of their newer ZX5 model. These buses are what seem to come out whenever GoRaleigh has some press event or some special occasion to show them off but good luck getting one in regular daily service. Outside of one big rollout day last August and a couple scattered other days, they’re kept in the garage on Poole Road as if they were fine porcelain in bus form.
I know Proterra’s buses have had some issues in some cities - see the issues SEPTA had with theirs or how in northern cities such as Worcester or Duluth they don’t make it out if the weather is cold or bad - but what’s keeping GoRaleigh from having them in regular service rather than using them for photo ops only. GoRaleigh’s official take is that they do enter regular service but the odds of seeing one in regular service has slightly less luck than seeing a real live unicorn, at least that’s what I observe doing fleet searches on Transee.. This when the 2021 CNG Gilligs that followed seem to get everyday use and the 2022s that will be following their lead and GoRaleigh is still using some of the 35’ ex-GoTriangle buses they’re running on lesser routes. What’s really happening here to keep a sub-fleet of buses for solely special occasions especially as some of the ex-CAT buses that are pushing the 12-year mark are not in good shape.
I’ll stop before crafting a theory about the 35’ buses being bought for the next rebooot of the R Line as a showplace, just like the handful of hybrid Gilligs they had and dumped as soon as they hit 12 years. 
