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Tesla to offer batteries for home energy storage (+video)

Tesla has plans to sell or lease lithium-ion battery packs for home energy storage, CEO Elon Musk said in the automaker's recent earnings call. Tesla already provides battery packs to Solar City, which leases solar panels and batteries to households to allow them to generate and store their own electricity.

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    Tesla CEO Elon Musk hinted that he may soon be offering batteries for home energy storage.
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It was just a couple of sentences during Wednesday's 2014 earnings call by Tesla Motors executives.

But in it, CEO Elon Musk apparently revealed a new line of business for the company: selling or leasing lithium-ion battery packs for home energy storage.

The full quote can be found in the transcript of the earnings call, as published by Seeking Alpha. Musk said:

We’re going to unveil the Tesla home battery [indiscernible] consumer battery that will be for use in and [sic] people’s houses or businesses, fairly soon. We have the design done and it should start going into production probably about six months or so.

We probably got a date to have sort of product unveiling, it’s probably in the next month or two. It’s really great. I’m really excited about it.

 Green Car Reports reached out to Tesla to confirm that Tesla Motors will be going into the business of providing battery packs to consumers for household energy storage.

"Yes," said Khobi Brooklyn, the company's director of global communications, reiterating Musk's promise of a product unveiling in a month or two.

Tesla already provides battery packs to Solar City, which leases solar panels and batteries to households to allow them to generate and store their own electricity--vastly reducing their electric bills in most cases.

Musk is not only the chairman of that company, but also its largest shareholder.

It remains unclear whether the "we" in Musk's statement refers to Tesla Motors, or to Solar City, but the Tesla brand might give added cachet to lithium-ion batteries offered to homeowners who already have solar panels installed.

The prospect of affordable home energy storage, combined with the continually falling price of photovoltaic solar panels, is likely to change the energy landscape and the business model of established electric utilities quite dramatically over the next decade and beyond.

"Distributed renewables," as the concept is collectively known, could thus be installed by homeowners or their utilities on individual buildings--residential or commercial--or even neighborhoods.

Utilities are also increasingly opening very large-scale solar farms in unpopulated areas to harvest hundreds of megawatts of solar electricity, and experimenting with batteries for energy storage to buffer the unpredictable supply and store energy for peak demand periods.

Tesla itself has said it plans to use solar energy to provide electricity for its Supercharger DC fast-charging stations; it recently installed solar panels at its first such site in Barstow, California.

But while the quantity of electricity that is centrally generated in large power plants and then sold to individual consumers may ebb, utilities will still have to absorb the costs of maintaining the distribution grid and some generating capacity as a backup.

This has led some utilities to worry that if state regulators do not allow those costs to be separately billed from the fees for the electricity consumed, they face a "landline problem."

That is, their most affluent customers will switch over time to a different way of obtaining energy and no longer absorb their proportional cost of grid maintenance.

Nonetheless, the lithium-ion cells produced in great volumes for electric cars will likely have many side effects--some of them unpredictable.

Now it appears that battery packs for home energy storage branded with the name of the Silicon Valley upstart electric-car maker will be one of those side effects.

The Christian Science Monitor has assembled a diverse group of the best auto bloggers out there. Our guest bloggers are not employed or directed by the Monitor and the views expressed are the bloggers' own, as is responsibility for the content of their blogs. To contact us about a blogger, click here. To add or view a comment on a guest blog, please go to the blogger's own site by clicking on the link in the blog description box above.

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