If you need more evidence, energy storage, rather than lithium-ion Laptop battery, let us consider the latest draft of an intelligent network storage utility.
In the Department of Energy announced Tuesday the $ 620 million capital project to stimulate the intelligent network 32, which, with 100 million dollars of private capital. A total € 770 million from government and industry in the coming years, energy is stored, the digital technology to storage, a real-world experience. (See the PDF for more information.)
(Credit: PG & E Corporation is) excellent in the list to highlight the compressed air energy storage, flow battery, little discussion of these two techniques in a few years ago. In addition, the combination of driving and use of cells, distributed energy storage in the community.
It is unlikely that the U. S. Department of Energy-funded project would be immediately profitable. However, storage has become identified as an important component of the vision of the intelligent network. A technology VGP-BPS8 start-up digital businesses, they hope that the storage group to develop specific applications or weaken the water pump as the most expensive price to the public bank. Pump, pump water, mountain water output to run a generator during peak hours. However, their use is limited geographically.
16 Ministry of Energy grants of Energy on a number of storage and wind energy, which is a variable source of energy. In California, for example, public utilities, Pacific Gas and electricity, energy from wind in the night, the turbines, the more effective is stored in underground caverns. During the day, more than the needs of the grid, the supply air and power generation through turbines.
In the use of underground storage of compressed air is that battery can be inexpensive and the storage time is worth a lot of energy. Forecast PG & E’s Kern County, California, the project generates 300 megawatts of electricity supply 10 hours, sufficient to meet the thousands of families.
Another innovation is the Dell FK890 battery storage and metal cans, compressed air, technical development, a Dartmouth College spin-off SustainX. The compressed air to release the hydraulic motor can run a generator so that power persists.
Flow batteries, now use tanks of liquid electrolyte solution. Communication when the two liquids, it is a chemical reaction to produce electricity.
An advantage of this method is much faster and energy of air, under the Association of storing electricity. A project is the introduction of advanced technology, high quality power supply, semi-trailer is a great use of mobile batteries spectrum of network and electricity supply, was held at the time of high demand.
Different strokes
The variety of technical issues, applications, storage area of energy. Winners of the Beacon Power flywheel can absorb, for example, accept and apply the value of megawatts of VGP-BPS9 electricity grids, but only in 15-minute burst. Flywheel, however, more attention, because they create a plant environmentally friendly substitute for natural gas now used to smooth out short-term fluctuations in the frequency of the network, the company said.
Larger batteries will continue to test storage rack. Duke Energy plans to use several types of batteries and a value of 20 million kilowatts Electricity delivery Notrees Wind Power Project in Texas. ” System “of hybrid battery, two working with the appropriate short-term fluctuations and the value network for hours power provided on the same day, according to representatives of Duke Energy.
Utility Portland General Electric over the next two years, plans five batteries of the battery manufacturer Ener1 to install sufficient power to juice about 400 an hour. Alternatives to lead-carbon batteries, including East Penn Manufacturing, also may be used.
A second project is feasible batteries used cars, experimental grid storage. Lithium ion plug-in car batteries A123 system is used to provide 25 kilowatts of two hours, 20 projects of energy conservation. The performance of lithium-ion battery in the car after years of degradation, but there is still enough capacity and performance of networked applications, utility officials say.