> The part that really hurt my non-american sensibilities is when the letter points out a cost of 12cts/kWh.
That's commercial/industrial pricing. If Solar City is able to obtain status as a generator that can sell power on the open market (combining rooftops into blocks for firm generation using controlled release of power to the grid from sunlight stored in PowerWalls), they'll be able to "sell" power to Tesla at a much lower rate.
As a residential customer in Illinois, my cost is 6cents/kwh, and as low as 1cent/kwh between midnight and 5am.
That's commercial/industrial pricing. If Solar City is able to obtain status as a generator that can sell power on the open market (combining rooftops into blocks for firm generation using controlled release of power to the grid from sunlight stored in PowerWalls), they'll be able to "sell" power to Tesla at a much lower rate.
As a residential customer in Illinois, my cost is 6cents/kwh, and as low as 1cent/kwh between midnight and 5am.