Xantrex, a company well known the renewable energy world, is introducing a new product called the PowerHub. It’s a self-contained power storage system that can be recharged with DC power from solar cells or wind turbines. Additionally, It can be charged via an outlet using AC power.
The Powerhub then provides 1800 watts of power (1400 continuous watts) through four AC outlets. This is useful for providing backup power for homes during an electrical outage, or for providing primary power for off-grid homes. The retail price is set at $899 for the device, and includes a 200 amp-hour battery.
The design of the Xantrex PowerHub allows customers to add additional batteries, along with a second battery box enclosure, to increase available power storage up to 400 amp-hours.
More info here: Prepared With Power