5 Things to know about how Tesla& s huge battery factory …

25 Мар 2014 | Author: | Комментарии к записи 5 Things to know about how Tesla& s huge battery factory … отключены
TESLA Model S – 60 kWh Auto

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Since Tesla last month that it to build a massive battery in the U.S. there s been speculation that the electric car will disrupt not just the industry, but also the global for power grid energy (the key to solar and wind). as is usually the case, the real is far more nuanced and complex.

It s that Tesla plans to some batteries  for grid applications, and it s been on a product with solar SolarCity for awhile (I first this in the spring of 2012 ). The storage market is in its infancy. And s battery plans could a meaningful impact on the market for batteries with solar particularly given the sheer of Tesla s factory and the fact it is supposed to lower battery by 30 percent.

But the grid energy market is nuanced. All batteries and are not created equal when it to batteries being used for the grid, and there will be types of batteries for different grid applications. Lithium ion are some of the most expensive out

And remember, the cost estimates Tesla wants to hit three from now are just that

Here are a few things you should about what Tesla s battery can and can t do for the power grid

1. The market for grid energy is just emerging Tesla is open it up: To date, energy technology in all its various forms batteries to compressed air storage to more experimental forms of storage is an emerging market the world. There are still a few hundred energy storage built anywhere 420 as of the end of 2013. to the Department of Energy s Global Storage Database .

Most of energy storage projects are hydro plants built ago (basically using energy to water up a hill and then let it back down when is needed). A couple years researchers at EPRI said pumped hydro made up 99 of the energy storage projects out The tech is pretty much the around, but it can only be built in with certain changing (hills and valleys).

Another portion of these projects are sulfur batteries (NAS), an technology that has been in Japan, but that recently safety and cost issues. set still is traditional compressed air storage, where air is pressurized and into a tank or underground and then let out when energy is Finally, a newer chunk of energy storage projects are and pilot projects that are built out to prove new technology at a small scale so yes, a of these projects are not commercial yet and are only emerging technology.

Just a small segment of current projects are built lithium ion batteries that s they ve just been far too expensive historically. According to Research, there were around 34 megawatt hours of lithium ion battery projects for grid storage by the end of 2012. s tiny.

For comparison s sake, were 23 gigawatt hours of lithium ion batteries made for electronics over the same (1 gigawatt is a 1,000 megawatts).

I out that this market is so because the sheer fact Tesla has said it is interested in it affect the market. Any ambitious moving into grid with an attractive and competitive will influence it particularly a that is as innovative as Tesla has and that is led by a celebrity billionaire like Elon Musk.

are giant lithium ion battery out there today from to Panasonic to Sanyo (potentially of Tesla s partners) that are these batteries at a massive, low scale. Those companies be aggressively packaging up lithium ion and selling them for the power These companies do sell for the grid, but are not doing so at any large yet.

So, in effect, Tesla s focus on storage could be very in opening up the grid battery market. It could shine a on this market in an unprecedented

2. Tesla is setting a price for grid batteries: Lithium ion have long been one of the more expensive options out for grid energy storage. But could make them a competitive option for grid and is setting a price ceiling for batteries.

Tesla has said its current costs for lithium ion (the ones it buys Panasonic) are somewhere between and $300 per kwh. and that its could reduce those costs by 30 percent. So in theory could hit between $140 per kwh and per kwh. Navigant Research Sam Jaffe thinks battery could end up costing around per kwh.

They are definitely the bar for battery costs, Jaffe By 2020 every other manufacturer will have to get to or beat the sub-$200 per kwh number Tesla will be able to if they meet their

Aquion Energy employees batteries at a rotary dial

3). There could be different for different grid applications: Yep, power companies buy batteries for the power grid they want to do certain with them. One of those is frequency regulation. which using batteries to provide bursts of energy over minutes to help smooth out the of the grid.

Today power often use generators and natural gas to smooth out that frequency.

TESLA Model S – 60 kWh Auto

there s the application that is mentioned in most articles on and the grid, and that s pairing with clean power, wind and solar farms. the sun only shines and the wind blows at certain times, the is that batteries could energy and then unleash it the sun and wind die down.

Lithium ion are pretty good at moving a using high power and short, shallow bursts of That would make a good fit for frequency regulation.

But power applications generally several hours worth of lower-power energy. So other chemistries could end up being a fit and also provide a lower-cost for applications like clean time shifting.

Lithium ion batteries also significantly over time the S battery has an 8-year warranty on it. Any operator will consider the of lithium ion batteries when them as an option.

Several companies are working on grid-specific that can provide sustained energy over a long of time. Some of these include Aquion Energy, and Eos Energy.


Philippe Bouchard, Eos s VP of business development, tells me the s zinc-air battery is designed for multi-hour, full discharge and the battery already costs 3 to 4 less per kwh than today’s ion batteries.

4. Tesla s plans are estimates: Tesla has shared a few tidbits about estimated scale and timelines for the factory. questions remain, and some are skeptical about the low cost of the factory and the aggressive price of the batteries.

Tesla has baked wiggle room into its costs when it comes to its third-generation electric car for $35,000 to Not all of the cost reduction will from lower battery It also plans to make a car s about 20 percent smaller, said recently.

And there are ways to reduce the cost of the car the materials and such options. So doesn t necessarily have to hit battery cost numbers to hit its target of a mainstream, low-cost electric car.

5. Financing and management software: will have a real when it comes to the way it can work SolarCity to not just combine s solar panel systems Tesla batteries, but also use s financing and management software. the past several years, has built its business off of developing tools and management software to down the cost of installing and rooftops solar panels. In the of batteries, financing and software are relatively new services.

To get batteries on the at scale, financing systems and software could be key.

TESLA Model S – 60 kWh Auto

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