The Physics Behind the Spanish Blackout

Me too.

There will always be a separate circuit breaker in the electrical panel for the solar. If there isn't a solar isolator as I'm required to do here then just flip the circuit breaker.

As far as I know removing the panels can be done by anybody here - reinstalling may require an electrician or other certified person (they have 2 or 3 grades here that are approved).

Why not just store the power in a battery and use it to drive the heat pump in the air-conditioner when you need it. It's cheaper than finding space for two tanks and buying and installing them, and it's thermodynamically more nearly optimal.

It won't ever be practical.

I've still got the car that my wife an I bought back in 2011. It still works fine though I only take it out about once a week.

Our flat doesn't have any place to put solar panels. The owner's corporation may find some space the all residents can collectively exploit, but while people in Sydney are thinking about how that might work, it hasn't happened yet.

It strikes me as worth thinking about how I might exploit those possibilities when they become accessible, and I do seem to have enough spare processing power to be able to spend some of that way.