I agree we need a universal option for both home batteries & V2H. ConnectDER is working to be that standard. Tesla’s Backup Switch was supposed to be open, but unfortunately hasn’t been opened for others to integrate with.
Whatever design wins should also be available as a standalone device (maybe even something that can be installed inside an existing enclosure if there’s room and maybe even in a circuit breaker format) and not just a meter ring adapter. There are users who, for various reasons, cannot use meter ring adapters as switches. For example:
- Some services cannot be switched at the meter ring. This includes services that use a current transformer separate from the meter. (As far as I know, this includes all services over “Class 320”.)
- Some apartments aren’t separately metered. Fortunately, this is rare.
- Some users will want to back up only part of a service.
- Some services cannot be switched at the meter ring. This includes services that use a current transformer separate from the meter. (As far as I know, this includes all services over “Class 320”.)
- Some apartments aren’t separately metered. Fortunately, this is rare.
- Some users will want to back up only part of a service.