Ron,
We are a club so we need to be able to run anything that a member brings to the club - conventional, TMCC, Legacy, DCS, battery, etc. Only one member has battery operated engines. I am in the process of having one of my professionally converted to battery power. Most of my engines are Legacy or DCS.
Here is a link to the G&O Story on the forum:
https://ogrforum.ogaugerr.com/.../the-gandamp-o-story
NH Joe