chevy volt batteries for neighborhood energy storage - lithium ion battery for solar street light

One day, thousands of used Chevrolet Volt batteries could be powered by sitting in a utility box near your home during a power outage.
The idea may seem far-fetched now, but it could become a reality as GM and its research partners and energy equipment giant ABB try to find ways to recycle and reuse old EV batteries.
"Utilities Call It community energy storage.
Instead of having a big one (storage system)
Sandeep Bala, ABB's Power electronics research engineer, said you will be closer to consumers in storage units "to serve them more effectively.
Community storage is just one of several ideas ABB and GM are exploring in order to find new uses after the Volt battery is no longer suitable to power the car.
The automaker expects the old Volt batteries to remain valuable because they should have enough capacity even after 10 years, and recycling them will create new sources of revenue.
Last month, GM and ABB announced that they have started building a prototype energy storage system using Volt batteries and will conduct on-site trials next year.
I recently caught up with Bala to learn more about the challenge of converting car batteries into power grid energy piggy bank.
The task is not just to tie together the used lithium
Ion batteries, placed in large boxes or cabinets, are sold as energy storage units.
Bala and his colleagues will have to address a number of key issues, including convincing utilities that old batteries can deliver stable performance at attractive prices.
"What we're trying to figure out is how to use these old batteries in a way that competes with the new ones.
"Price is a tricky issue," said Bala . ".
"The idea is to have a live demo unit and use it to figure out how to deal with used batteries.
"Why focus on grid storage?
Utility Interest in energy storage technologies has grown significantly in recent years, mainly because they have added more and more solar and wind power to their energy mix.
Solar and wind fields cannot deliver stable power flows to the grid--
They generate electricity only when the sun shines or the wind blows.
But they meet the task of using cleaner energy in many countries.
Injecting renewable energy into the grid at different times poses a headache for utilities and grid operators who must maintain a balance between supply and demand in order to run the grid smoothly.
Whether it's a battery or other technology, the energy storage system can store and release power to maintain a balance of supply.
When demand is low, energy storage owners can also make money through bank electricity, and when demand peaks, they can sell electricity when the price of electricity is high.
As automakers began selling electric vehicles, the energy storage market in the grid was on the rise.
Over the past three years, the market for renewable energy and electric vehicles has received strong financial support from the federal government, part of the country's efforts to create jobs and reduce its dependence on fossil fuels for transportation and power generation.
Since energy storage systems are not widely used, utilities themselves are also trying to figure out what to look for when they buy energy storage technologies and how to integrate them into their operations.
The electric power Institute, which serves utilities, has released several reports on energy storage over the past year, including a report that answers some utilities questions.
Make the Volt battery a big utility and they are more willing to invest in devices that are used for a long time.
For energy storage, they are looking to run 10-
It's been 15 years, Barra said.
At present, Volt sports 16 KW-
An hour battery with an 8-year or 100,000-mile warranty.
GM estimates that after about a decade of use, Volt owners may replace the battery, which should remain at 70% capacity.
A car needs a lot of power to start and run, and since the car needs to be restarted and run, it will be obvious that the capacity drop by 30%
Charge regularly.
Since Volt is a new car that was only launched at the end of last year, how its battery has performed in 10 years is still unknown.
GM has run the calculations to estimate the performance of the battery, but it needs field data to prove and adjust the estimates.
Not all batteries will lose their ability after 30% months --year mark.
Engineers at ABB and GM will have to determine how to mix and match old batteries to provide the right performance for grid storage, in terms of its ability to store and discharge power in thousands of cycles.
"If you can manage to get a battery of the same capacity, then it will make the design simpler," Bala said . ".
The battery pack is mainly made of lithium-
Ion batteries and electronic components and software that monitor and control the functions of the battery.
For power grid storage, the electronic management system must communicate with the inverter, which will be DC (DC)
From battery to AC (AC)
To fill the grid.
Bala said the inverter also takes data from the battery's monitoring system to let local utilities know how much power can be put into the grid.
Therefore, it is essential to design the right inverter.
Making sure the battery is not too hot is another important consideration.
Lithium-ion batteries may overheat.
For cars, the materials and designs favored by battery developers, including the use of cooling systems, can minimize the possibility of overheating and fire.
Security mechanisms are also critical for grid storage units.
"For most devices connected to the grid, these are designed to protect themselves.
"If they run too hot, then they disconnect themselves," says Bala . ".
Bala said that Small Is BetterGM and ABB are building the first prototype grid storage system to provide 25 KW of the electricity in two hours or 50 KW in one hour
Compared to some energy storage systems being developed, the system will be small, and the size of these energy storage systems is equivalent to freight containers.
The two companies are meeting the desire of some utilities to build a network of community storage systems.
For example, these nearby storage units can store electricity generated by solar panels on the roof of nearby houses and release power during peak demand or power outage times.
Utilities expect more residential solar installations in the coming years, while the solar power that homeowners do not use only flows into the grid.
If GM and ABB do the right thing, they may end up offering storage units that are cheaper than those that use brand new lithiumion cells. Lithium-
Ion batteries are expensive, in part because electric cars are expensive.
At this point, they are also one of the most expensive technologies in grid storage.
But there's no battery-
The use and volume requirements of some other types of storage technologies, so they can be installed in small or large containers.
Automakers like Toyota have talked about the need to make money from old batteries to help offset high battery manufacturing costs and make electric cars more affordable.
Running an effective recycling plan is a way.
Renting the battery to the owner is another idea that has been put on hold, says Nick Cata, vice president of business development at Leyden Energy, a startup.
Ion battery developer in California
"All you need to do is pay for the battery rental section.
When you get the new battery, the old battery is used for "backup power storage," Cataldo said ". Another cost-
The idea of cutting is to have the car maker pay only 20-
30% of the battery price (
Corresponding to the capacity that will be used to power the car).
The rest will be paid by the grid storage company.
All of these ideas will also help ensure a stable supply of old batteries for grid storage.
"Auto manufacturers are carrying high
They don't make the most of the pricing batteries.
It should be a common cost to accelerate the adoption of electric vehicles, "said Cataldo.