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Digital Subscriptions > Stuff > May 2019 > SAVE AS HOUSES


Slash your energy bills and carbon footprint, and reduce the amount of plastic floating around in our oceans, with a little help from Elon Musk and friends


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It’s possible to be a Tesla owner without splashing out on an electric car that can make fart noises – thanks to the company’s clever home battery system.

In theory, Powerwall stores free solar energy during the day and tops it up from the grid with cheaper off-peak energy at night. In practice the British weather doesn’t always play ball, but if all goes to plan there’s capacity for seven days’ continuous supply in the event of a cut – or your direct debit bouncing. The 13.5kWh cell can be put on the floor or wall-mounted, and on a good day could cut your need for utility company dependence altogether… but for that to happen you also need a Tesla Solar Roof.

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