Research institutions that 6 hours battery energy storage system can meet the demand of load of 74%

, according to foreign media reports, California, is committed to the battery energy storage system to replace natural gas peak shaving plant, and market to occupy a place in the state's peak, after mainly by natural gas plants provide peak shaving can rapid response services.

replace gas peaking power plants is energy storage deployment early momentum, but not enough to make the grid electricity fully decarburization. Battery energy storage system has the capacity limits, continuous discharge time is shorter. So on a commercial scale, duration longer deployment of energy storage system are relatively rare.

California developed to achieve the goal of zero carbon, by the middle of the century grid but discharge time energy storage system has become a difficult problem.

East Bay, Nick Chaset energy company's chief executive, said the company is committed to solve the problem. The company recently signed a contract, the use of a 4 hour energy storage capacity of 20 mw of lithium ion battery energy storage system to replace a is located in the city centre has been operating for decades of gas peak shaving plant.

although the installed capacity is small, and the discharge time is limited, but the energy storage system will provide local capacity, and replace the fossil fuel power generation assets.

Chaset said in an interview after the signing ceremony, & other; At present, 4 hours and energy storage system still has huge investment opportunities, we will continue to develop and deploy, we hope to build 4 hours and 6 hours of battery energy storage system can meet the capacity requirements. ”

peaking power plant is the main measures to prevent grid power outages of the power industry, even if seldom participate in power grid operation, construction and operation of peaking plants still need to spend a lot of money, and when the peaking power plant operation, its carbon emissions than renewable energy.

solar and wind facilities is not as peaking plants, because of their energy output is intermittent, not scheduling according to instructions. However, battery energy storage system is not the limit, and location when deployed in urban areas have a certain advantage, but in the city of new peaking power plants using fossil fuels, find it difficult to get approval. In addition, when the battery energy storage system does not need to meet peak demand, can be electricity to power grid, as a kind of reliability of electric power assets.

last year, California regulators decided not to Calpine three natural gas plants provide & other; Reliability must run & throughout; Pay fees, and approved in moss landing deployment of a battery energy storage system. Deployment of battery energy storage system may not retire the existing natural gas power plants, but will reduce dependence on fossil fuel power generation assets.

according to the requirements of regulatory agencies, utilities southern California Edison gave up in oxnard beach construction of a natural gas power plants, and plans to deploy a battery energy storage system. In the process, grid operators CAISO company to its clean energy technology research, and make sure they can fulfill natural gas plants play a role of power reliability, and it offers the concept of valuable validation.

research Wood Mackenzie, the company said the longest continuous discharge of battery energy storage system for 4 hours, this means that you can step in a run only in a few hours during peak hours. Through a survey conducted in 2017, the company 6 hours battery energy storage system can meet the demand of 74% of the peak shaving.

as a result, battery energy storage system can replace most of the currently available peaking plants, but it can't provide the capacity of the large combined cycle power plants as much as I would like to.

in some cases, clean resources need to be in a long period of time as needed to provide more power, especially in the case of solar power gradually reduce.

Chaset said that over the next ten years need to deploy a large number of independent storage system or with solar power energy storage system, this can make the state of California to use 60% renewable energy target for 2030.

Chaset explains, & other; From 2030 to 2040, the time frame is more challenging, we can not find the right solution. One may think that the solution could be pumped storage power station, but its huge investment, long construction period. ”

he cites some energy storage technology. Pumped storage power station is the largest size of a grid energy storage system, but its capacity is limited by the environmental impact of growth; Due to the constant expansion of the scale of production and the new study, the price of the lithium ion battery will continue to decline. Battery energy storage system with good prospects for development; Some companies are developing the compressed air energy storage system; There are some vendors to further explore the energy storage technology is concentrated in low temperature storage and gravitational energy storage technology.

he said, the enterprise not to lock the unwise of big investment risk, under the condition of definite know how energy storage technology development, the mature technology of energy storage technology is meaningful.