Does anyone know the round trip (charge/discharge) efficiency of a Powerwall 2?
My Winter off peak rates on CA PGE E-6 offer only an 8% savings over part-peak. My guess is that the round trip losses are at least that 8% making time shifting uneconomical. Are there any measurements or published data.
Ideally, the Powerwall stats would report battery in/out data just like they do for the grid. That would make it transparent.
My Winter off peak rates on CA PGE E-6 offer only an 8% savings over part-peak. My guess is that the round trip losses are at least that 8% making time shifting uneconomical. Are there any measurements or published data.
Ideally, the Powerwall stats would report battery in/out data just like they do for the grid. That would make it transparent.