This off-grid earthship is powered by an Iron Edison Nickel Iron battery with five solar arrays in an AC-coupled SMA system. The system was designed by Iron Edison and installed by Southard Solar. If you have a need for off-grid power, or simply want to provide backup for a grid-tied home, please reach out to Iron Edison at 303-432-6433 or email to info@IronEdison.com.
This system was also featured on SMA’s blog here: http://www.smainverted.com/colorado-dome-home-from-astronauts-dream-house-to-educational-facility/
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Iron Edison Nickel Iron solar batteries:
Iron Edison Lithium Iron solar batteries: http://ironedison.com/lithium-batteries
Iron Edison complete solar + battery systems (off-grid or grid-backup):