> "a lead-sealed, windowless, Faraday cage in your house (but the smart power meters can identify a lot of your activity anyway)" To get as close as possible t

> "a lead-sealed, windowless, Faraday cage in your house (but the smart power meters can identify a lot of your activity anyway)" To get as close as possible to perfection isolation, also ground the cage to make it produce much less emissions and use some filtering device on any cords connecting it to power/communication grids (ungrounded Faraday cage only stops incoming communication, not outgoing one).