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Iinteresting how they are branding it as a backup solution, while Tesla is branding it as a complete replacement.

"What if we could move the electricity grid off of fossil fuels" (Tesla)

vs

"Be prepared the next time the power goes out."(Solar City)



"Models

10 kWh $3,500 For backup applications

7 kWh $3,000 For daily cycle applications"

From http://www.teslamotors.com/powerwall

Maybe Solar City has been using the ones meant for daily cycle - that would make sense.




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