Looking into Amber a bit further I think I might have found a red flag…. part of Amber’s model is to use your PW2’s stored energy to export electricity to the grid when prices are high and you get super-sized FITs - over $1/kWh. Sounds great!
But then I checked my PW2 warranty, and it states that if the PW2 is not used solely for solar self-consumption and backup, which would seem to be the case if one entered into an arrangement with Amber, then the PW2 warranty limit is no longer “unlimited cycles” but 37 MWh of aggregate throughput (charging and discharging).
Currently, my PW2 over the past 4.5 years has had a total aggregate throughput of 26.3 MWh, and its capacity is down to 74.9%. At that rate of capacity decline, it looks like I am nailed on for a warranty replacement within the next 18 months. But signing up with Amber could put any PW2 warranty claim for replacement under significant risk, if I happened to cross 37 MWh throughput before capacity went under 70%?
Am I misreading something here… ?