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better than Tesla Power Wall - backup battery rack with 72 batteries - $3,000 (Las Vegas)
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This system is perfect for a do-it-yourself solar pv photovoltaic panel system for backup power for a house or office. This was designed to power a 40,000 square-foot data center if the power went out. You can also hook this up to the grid and store power when electricity is less expensive at night and use the electricity when rates are higher during the day.
If you're not a do-it-yourself person, call an electrician to set this system up for you.
24 modules with 3 batteries each. Each 3-battery module is 600 amp-hours @ 8 hours. So, something like a total of 14.4 kW - 14,400 amp-hours per rack. If you combine all 4 racks together, you have 57.6 kW of power, quite a bit of battery storage of electricity.
We have 4 individual racks for sale. They are $3,000 each or sell all 4 racks for $10,000. New these racks cost over $30,000 each with batteries, racking, hardware, and disconnect.
This was removed from a Data Center for construction work, to build some bathrooms. This data center did not have any additional area to reinstall these, so they asked us to remove them. It was the backup power supply for the data center. It still works, batteries show 2 volts.
The rack stands about 6' high.
Pickup is in Las Vegas, Nevada 89118
Compare with Tesla PowerWall