virtual power plant

I'm a PG&E customer with two Tesla Powerwalls and Tesla Backup Gateway 2. I charge the batteries after midnight, and then they discharge during peak and semi-peak hours (3pm-12am). I don't export any energy back to the grid because I don't have solar. Can I still join Tesla Virtual PowerPlant...

here is a link to Australians proposed VPP, Virtual power plant, using (proposed) 1,000 PV arrays and ~7kW battery banks for a 7 megawatt (5 megawatt usable) power. I would really like to buy/rent/PPA/whatever a PV array from SCTY and a powerwall (or 2) with inverter that has capability of...