One of the early adopters of the Tesla Solar Roof - the Toblerone - shared insights on the system that combined with Powerwall home energy storage enables it to stay mostly energy independent.

The house is a little over 2,000 sq feet (185 sq meters), and about 40% of the roof is covered with Solar Roof tiles, which provides up to 9.9 kW of power. The cost of the Solar Roof stands at roughly $55,000 after tax incentives.

As you can see on the Tesla app screens, the results between July 2 and July 8 were:

  • Tesla Solar Roof: 394 kWh
  • Home usage (with A/C and two EVs): 285 kWh
  • Powerwall: in 106 kWh, out 95 kWh
  • Grid: 101 kWh to grid, 2.9 kWh from grid
For us it's pretty cool to see that you can run not only a home, but also two plug-in vehicles having your own power generation.

There is no doubt that the upfront costs for now are high, but in the long term it could become a lowest cost option (in terms of total ownership costs).

Tesla Solar Roof - stats (Source: Toblerone)

Tesla Solar Roof - stats (Source: Toblerone)

Tesla Solar Roof - stats (Source: Toblerone)

Tesla Solar Roof - stats (Source: Toblerone)

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