remote control A/B switch?

[MarkusBiggus]

I've found many remote-control switches but have not been able to find an A/B switch yet.

My application is to switch the source of some devices between grid and PV power sources by home monitoring of PC production & grid export.

On sunny days we still export over 10kW to grid after the 10kWh battery has been charged.

The pool pump runs on a controlled load that gets a 30% discount to normal rates, controlled by the energy provider. Currently 8 hrs per day at their discretion when it's on.

Usually, controlled load is on during peak PV production and I'm paying to buy my own grid feed-in at about 5 times the rate they pay me for it. 

An A/B switch allows a monitor of PV production and grid feed-in to switch the pool from grid to my PV production, boosting value of my excess power by 5 times.

I have a Sonnen battery and power meter, everything I need except a remote-controlled A/B switch for the pool pump's power source.

Does Shelly have such a product, or plan to have one (you totally should)?

Cheers, Markus