Hi jjrandorin,
This is exactly what I want, but somehow, my PowerWalls aren't behaving this way for me.
Would you know what I need to do, to make it behave the way you described?
I have a 11 kW Solar panel system, with 4x PowerWalls installed.
I'm on TOU rates in Nevada (NV Energy) where the summer peak price is $0.435 (with +$0.407 credit for net-metering), and off-peak rates are just $0.053 (with +$0.045 credit for net-metering). This means that for every 1 kW I send to the grid via net metering during my peak hours (from 1 pm to 7 pm), I can get credit from NV Energy, and it's worth like 7.6 kW of electricity off-peak.
I'm already on TBC + Cost Saving mode. I've set the Peak times properly in the app.
During Peak times (from 1 pm to 7 pm), I get this behavior with my PowerWalls (which is NOT what I want...):
- When Solar output is HIGHER than the Household load (Early Afternoon), only the Excess Solar goes to the grid, and PowerWall doesn't contribute at all. This means that there's valuable Solar that is NOT going back to the grid for net-metering credits, whereas my 100% charged-up PW is sitting idle. Bummer!
- When Solar output is LOWER than the Household load (Late Afternoon), then the PW kicks in to supply only the DIFFERENCE of what the Household load requires from what the Solar produces. There is no pull from the grid (which is good), but unfortunately, the full Solar still is NOT sent to the grid for net-metering credits (which would be awesome). Given the high net metering credits, I would GLADLY prefer to use PW to power the house during the WHOLE Peak period, and to send ALL the Solar (100%) to the grid for the high-rate of net metering credits.
Is it an issue with my PW system? Or is this behavior not supported by PowerWalls?
(Anecdotal evidence from forum members seem to suggest that my desired behavior IS INDEED supported, but somehow my PW doesn't do it...)
thanks,
Bobby