Interesting, thanks for that.
So it looks like you get a 7kWh battery at $3945 instead of RRP $10495 (or $9700 if you read a little lower on the same page). The unit costs about $4k wholesale, so that RRP is pretty high.
For that, you’ll get a minimum credit of $300 per year. That’s a 13 year payback period, if you continue to get that amount after the 5 year contract ends. And it’s unlikely you’ll receive more the $300 - if you charge the full 7kWh every day from your solar, and discharged it at let’s say an extra 15c than what your feed in tariff is, that’s (7 x 365 x $0.15) $383, which is quite generous assumptions I think.
The claim that you’ll “Be more self-sufficient by storing the solar power you generate” is very dubious when they also state they’ll have 100% control of discharging and charging of your battery.
Don’t get me wrong, I’m quite interested in the VPP concept, I think it makes a lot of sense, however this deal doesn’t strike me as one that I would jump at.