Getting off the grid getting easier? Tesla's trying to make it that way, by employing the battery derived from its Model S vehicles.
The battery, plus installation, will cost roughly $3,000. Then there's the tiny matter of solar panels, which are sold separately, of course.
The true benefit won't come from this first generation of batteries, necessarily--storing solar power in a battery is still highly inefficient--but in bringing investment and research into the next generations.