Energy Empire

Ask Jigar: Is a $20,000 used EV the cheapest home battery you can buy?

August 20, 2026·8 min
Episode Description from the Publisher

A used EV costs $200 a kilowatt hour. A Powerwall costs $900. In this episode:Unsubsidized rooftop solar at $2,100 a kilowatt, and why Australia does it for half that470,000 megawatts of data center requests on a grid with a 91,000 megawatt peak: "It's crazy town"Why buying a $20,000 used EV means "you're getting the car for free just by buying the battery"Everything else on the grid just makes steam. Solar doesn't.Send in your question, and if Jigar answers it on the show, you get an Energy Empire hat: https://octopusenergy.com/ask-jigar

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