Tesla’s Powerwall is a battery capable of storing energy, like solar energy, incredibly efficiently. What separates the wall-mounted Powerwall from other home batteries, however, is how much it costs to run.
As Forbes points out, the energy industry was under the impression that home batteries such as these would be useful by the year 2020 – as long as they could be bought for $350 per kilowatt-hour of capacity.
Well, a whole five years early, the Powerwall operates at $250 per kilowatt-hour of capacity.
This, if true, is an absolute game changer that could revolutionize how we consume energy and green our carbon footprint in the process.
Nuclear critic Arnie Gundersen says this battery has the potential to solve the unreliability in output that has plagued wind and solar projects. He even said that eventually this battery will store power from these sources so cheaply it will make even modern nuclear power plants obsolete.
That is a powerful message as the world continues to grapple with a global recession, climate change and, of course, climate change deniers.
As Ramez Naam, who thoroughly reviewed the Powerwall, points out, while the battery may not be a total game changer immediately, it is already cheap enough to replace natural gas peakers and even drive grid level deployments in the Untied States.
But before we get ahead of ourselves, let’s look at some specs.
The Powerwall is a rechargeable lithium ion battery with liquid thermal control. It comes in two models: the 10 kWh model for $3,500 U.S., and the 7 kWh model for $3,000 U.S. It boasts 92 per cent round-trip DC efficiency and runs at 350-450 volts.
It comes with a 10-year warranty with an optional 10-year extension. It can also be used indoors or outdoors, and is single phase or three phase utility grade compatible.
But when will it come to Canada?
It might be a while. Tesla will be shipping a limited number out this summer and expanding into international markets, like Canada, next year. A new factory in Nevada will begin producing the batteries on a wider scale in 2017.
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