They don’t. If you live outside of the USA it is cheaper (e.g. 400 cad a month in Canada) The article also mentions the grey market, where you can buy a year’s

They don’t. If you live outside of the USA it is cheaper (e.g. 400 cad a month in Canada) The article also mentions the grey market, where you can buy a year’s worth of power from China for a couple hundred bucks. You do need to be able mix it up properly though.