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Will plug-in solar plus batteries solve your power problem? I did the math

It can't be just about harvesting solar power - it's also about storage, and time-shifting cheap, off-peak power to times when it's more expensive.

  • Plug-in solar systems with batteries can manage power costs but have limitations.
  • Time-of-use tariffs with peak/off-peak rate differences are necessary for effectiveness.
  • Storing power during off-peak hours and using it during peak hours can save $0.78-$3.34/day.

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