Backup battery for your house or how to go off-grid for up to a week

Panasonic announces a battery for your home, able to store enough energy for a week. I think this is exciting news since having an easy energy storage system will make intermittent energy production more useful. If I have a battery that stores enough power to run my house for a week, then wind or solar is much more useful. Panasonic has announced delivery is planned for 2011. Read the full article here.