Why we won’t use the new Tesla battery in any Milestone systems

As of now, the Tesla Powerwall battery is a cycling system. That means it works for storing energy to be used only that night – not later on in a prolonged outage.

For areas without net metering, that might be okay, But for our area, they make no sense at all – to me at least – in the near term.

That’s the overview. Here’s a more detailed answer.