Tesla Powerwall: The iMac of Home Batteries

Tesla Powerwall Battery

Two days ago, America Off the Grid previewed the Tesla Battery Revolution. Now the news is out and it’s big.

Powerwall, coming this summer from Tesla Energy, is a battery for your home. It’s the first battery for your home that looks like it belongs in your home. What the iMac did for home computers, Powerwall does for home batteries.

No more ugly battery arrays. Powerwall may be the first home battery to come with a choice of colors.

Meet Powerwall

Elon Musk Introduces Tesla PowerwallInside Powerwall is a 220-pound rechargeable lithium ion battery, not cutting edge, but better than the lead-acid batteries many installers still use. According to Tesla, Powerwall generates 2.0 kW continuous power and 3.3 kW peak power.

Powerwall, as its name suggests, mounts on an inside wall or, in moderate climates, an outside wall. It’s bit over 4 feet high, a bit less than 3 feet wide and 7 inches deep. Although it requires a certified installed, Tesla says Powerwall installs easily and needs no maintenance.

Powerwall charges from any source of electricity. It is designed to work with solar panels out of the box.

Tesla has identified energy storage as a weak link in the move to renewable energy. Using (1) the economies of scale and (2) brand standardization around a needed product, Powerwall is out to strengthen this key link.

If you’re off the grid, or planning to go off the grid, “Powerwall offers independence from the utility grid.” says Tesla. If you’re grid-tied, Powerwall offers “the security of an emergency backup.”

What’s Powerwall Cost?

For what it offers, the cost is not bad. Tesla says the price to installers will be $3,500 for a 10 kWh weekly-cycle backup battery or $3,000 for a 7 kWh daily-cycle battery, installation and inverter not included. Rental options should be available through Solar City and other installers.

You can stack up to 9 Powerwalls. But if you need that many, spend $25,000 on Tesla’s coming 100 kWh battery, the Powerpack. One Powerpack will power a small off-grid community. Two billion of them, says Tesla CEO Elon Musk, would power the entire world.

Tesla says Powerwall will not ship before late summer. Supply may be tight until Tesla’s $5 Billion gigafactory in Nevada gears up in late 2016 or early 2017. But Tesla Energy has big plans. They’re calling it Gigafactory 1. Maybe they really will power the entire world.

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