A demonstration project of 2MW/8MWh large vanadium REDOX flow battery (VRFB) in California will be used in a microgrid, foreign media reported.

The flow battery storage project, which opened in 2017, is located in a substation in the service area of California utility San Diego Gas & Electric. America is the largest vanadium oxide also concentrate (VRFB) flow battery energy storage project, and its flow battery provided by Japan’s Sumitomo Electric Industrial Co., LTD, which is in Japan Hokkaido north island and deployed by far the world’s largest flow battery energy storage system (15 MW/ 60 MWH), and last year, the company announced in the same area deployed another 51 MWH flow battery energy storage system.

The 2MW/8MWh vanadium REDOX flow cell (VRFB) entered service in 2017 and began joining the California Independent System Operator (CAISO) market in 2018. San Diego Gas & Electric Company (SDG&E), utility manufacturer, says the project will help mitigate the effects of an unprecedented heat wave that hit California last year.

The project is supported by the state of California, the California Governor’s Office of Business and Economic Development, and the New Energy and Industrial Technology Development Organization (NEDO) of the Japanese government. In an effort to improve power quality on the California grid, the company has been entering the California Independent System Operator (CAISO) wholesale power market since late December 2018.

Sumitomo and NEDO has issued a press release said that flow battery energy storage system can often charge, discharge, and cycle, and there will be no battery degradation phenomenon, which makes it able to flexible operating in the energy market, and in the absence of operating restrictions to bid. With the ability to measure battery remaining power in real time, the project has been able to implement innovative bidding strategies to increase revenues in the energy and ancillary services markets.

The scope of the project is now being expanded: about 70 electricity users will be connected to fluid-flow battery storage systems, and the pilot will be used in microgrids isolated from the grid until December 2021. Flow battery energy storage systems can serve as a useful tool for the grid, a source of commercial revenue, and a backup power source, enabling community users and businesses to use the power provided by the flow battery energy storage system in an emergency if the grid fails.

The flow battery energy storage project combines California’s need for community long-term energy storage systems and flexible power

California urgently needs to deploy a long-term energy storage system in several ways. According to media reports, the state’s three major investor-owned utilities, including San Diego Gas and Power, shut down power last summer in areas at risk of wildfires, in what are known as public safety blackouts (PSPs).

The state also has serious problems meeting peak summer electricity demand. In fact, Sumitomo’s flow-battery energy storage system helped mitigate grid operations during the August heat wave, according to San Diego Gas & Electric (SDG&E), which typically relies on air conditioners. In a broader sense, California’s policy goal is to provide consumers with 100% by 2045 clean energy, which requires large-scale deployment of renewable energy electricity generation and energy storage system; this has led to the rapid deployment of lithium ion battery energy storage system, and lithium ion battery energy storage system of continuous discharge time is usually about 4 hours, but it is also realized, and the state also requires constant discharge time longer long energy storage system, though the industry for long-term capacity of energy storage system and storage time has not yet reached broad consensus.

The Japanese government’s New Energy and Industrial Technology Development Organization (NEDO) and Sumitomo hope to demonstrate that vanadium oxidation reduction flow batteries (VRFB) are a multi-purpose energy asset whose innovations will help increase market penetration for energy storage systems. The project is expected to demonstrate the commercial value of flow batteries by enabling the utility to generate revenue from the California Independent System Operator (CAISO) wholesale market to provide backup power to customers.

Only in a few weeks ago, the management of CPUC for SDG&E and two other investors have flat to the gas electric company (PG&E) and southern California Edison (SCE) to adopt new rules, rates and prices, so as to realize the micro grid commercial deployment of cleaner. San Diego Gas & Electric Company (SDG&E) said Sumitomo is testing the project to help achieve a zero-emission microgrid.

Although flow battery technology has existed since the 1970 s, and compared with the lithium ion battery has recognized advantages (such as electrolyte almost no degradation, material recyclability and longer service life), the lithium ion battery has high energy density and mass production to quickly reduce the cost of competitive advantage, makinginto the market mainstream technology, energy storage and flow battery is mainly used in the niche market.

It could change with an increased share of renewables and aggressive policy targets for net zero emissions. Vanadium producer Largo Resources Inc., which is developing a vanadium oxidation-reduction flow battery energy storage system, says demand from the battery industry is driving demand for vanadium, which is already used in industry for a variety of purposes (such as steel). Sumitomo and the Japanese government new energy and industrial technology development organization (NEDO), points out that in California, in the process of transition to clean energy, they experience the deployment of California in long term when the demand of the energy storage system, and the Australian government also said in the middle of December 2020, for its deployment of the first grid size of vanadium oxide also influent flow battery energy storage system to provide the support, the project will cost $20.3 million ($15.36 million), and its size and capacity and California, San Diego gas and electric company (SDG&E) project is the same.

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