The Register has a slightly more cynical take on the announcement.
http://www.theregister.co.uk/2015/05/04/tesla_powerwall_the_game_change_flavoured_battery/
The real limit that they identify is the peak power output isn't going to run a house unless there are multiple units installed. Given the energy requirements for a car, I'm surprised by this. The Register speculates that it's to maintain battery lifespan.
I'm not convinced that it's necessarily a game changer, but it's a nicely packaged system.
http://www.theregister.co.uk/2015/05/04/tesla_powerwall_the_game_change_flavoured_battery/
The real limit that they identify is the peak power output isn't going to run a house unless there are multiple units installed. Given the energy requirements for a car, I'm surprised by this. The Register speculates that it's to maintain battery lifespan.
I'm not convinced that it's necessarily a game changer, but it's a nicely packaged system.