The university of California pilot phase as battery energy storage system plans battery costs drop in half

The solar energy industries association emphasized, & other; The long-term development of the solar power industry will depend on the cost benefits of energy storage system. ” Through the use of electric cars, EV) Secondary battery, researchers at the university of California, Davis is validation of a possible solution to this challenge. In January 2019, they commissioned a company deployed secondary battery energy storage system of electric vehicle and excess power to store solar energy power generation facilities.

the energy storage system by the university of California, Davis, green technology laboratory Jae Wan Park professors and graduate students to develop. It is said that the project funded by the California energy commission, will effectively reduce the university of California, Davis, Robert Mondavi institute of peak energy consumption and carbon footprint, the institute is a complex of brewery, brewery, and food processing plants. Development team in a container near the winery in the assembly for about 15 battery, the battery of the total capacity of 300 KWH. Development of the control algorithm can control the battery using an installed capacity of 200 kw home solar charging facilities. Then in the evening will be stored energy release, reduce Robert Mondavi institute 20% carbon footprint and energy consumption.

professor Park, said the team development of energy storage system has a unique advantage. Researchers, for example, no longer spend hours to fully charge and discharge, but the use of machine learning algorithm to estimate the battery health status in a few minutes. Then, using other algorithms configuration cells in series and parallel way to optimize performance. Finally, the team used the control reconnect the battery, the control device can measure and considering the change of the battery capacity, in order to ensure safety, efficiency, service life.

it is important that these functions can keep synchronization with California grid operators and consumer demand. Currently about 20% of its electricity from solar power generation facilities, the intermittent output seriously affect the power grid operation. Excess capacity to wholesale prices, in the day and night electricity prices to peak. However, policymakers in 2018, California double deployment of solar power generation facilities, 100% achieved an unprecedented clean energy goals, and authorize in all new residential roof installed solar power generation facilities. With low cost and extensible bold energy storage system can support the state to achieve these goals.

at the same time, the combination of public policy and cost reduction to promote the rapid popularization, the plug-in electric cars and plug-in electric cars now accounting for more than 10% of new car sales in California. In order to reduce waste secondary battery of the environmental impact of electric vehicle and the state legislature is setting the rules, to ensure that they are at the end of its life cycle recycling. While nissan company general manager Francisco Carranza, said electric car batteries currently cost is three times as much as the value of recycling battery materials.

to use secondary battery can delay the huge cost of recycling. In view of the electric car battery at the end of the life cycle there are usually 75% original capacity, so use again possibility is very large. This opportunity to professor Park to change its use, and set up a start-up companies RePurpose Energy company, committed to the research the commercial team. According to the company co-founder RyanBarr, half of the team's goal is a new battery costs to solar developers sales to use secondary battery.

in California that needs high cost areas, electricity price is a lot higher than during the day in the night, so the distributed solar developers need to adopt more cost-effective battery. In this case, for solar power generation facilities deployment of energy storage system can be doubled its portfolio value. For this reason, RePurpose Energy use nissan leaf secondary battery of the car, in a brewery deployment of Energy storage system with solar Energy facilities, will reduce electricity costs and for its carbon footprint.

however, the benefits of energy storage system is not just to reduce electricity and energy conservation and emissions reduction. Grid operators all over the United States is developing a new mechanism, make a battery energy storage system can be directly involved in the wholesale market. At the same time, some public utilities regulators are known to reduce the cost of power grid upgrading potential battery energy storage system. Because of this, professor Park and his team's vision is to use a lot of secondary battery packs for grid services.

today, commercial use electric secondary battery energy storage system has become a reality. The next question is whether this approach can be large scale, further improve the operation of power grid. RePurpose Energy company founder, said they have rich development experience, and prepared for the technical preparation, if successful, utility companies, automobile manufacturers and consumers would benefit.