(08 Aug 2022, 6:40 am)RobinHood wrote Rumor is that the Ecocitys are being considered to be withdrawn, as they are simply too expensive to maintain, ongoing. Reaching a point in their life cycle that some major components of the gas system need to be replaced (combustion, roof storage tank etc).
Presumably their expected costs are being considered against their book values, which explains why they have stopped their refurbishment work.
A Stagecoach Sunderland driver I spoke to a few months back mentioned that Stagecoach were considering the same due to large costs to maintain these buses.