Assuming the price point is right, where can I sign up? No need for any serious worries about brown outs or blackouts unless we experience a cataclysm and a place (finally) to store renewable energy making that system potentially viable.
http://nexus404.com/Blog/2009/12/24/new-panasonic-lithium-ion-battery-to-power-up-a-house-new-li-ion-battery-coming-from-panasonic-in-2011 (via http://pajamasmedia.com/instapundit/90512)
"Panasonic is going to create one of the hottest batteries available to date. The new lithium-ion storage cell should power up a whole house in 2011 when it could be available to the general public. I don't know about you but I'd want to plug that battery right into my laptop and see how much life it will be able to offer me.
Furnio Otsubo, president of Panasonic said that the new battery should offer sufficient electricity for about one week of use."