Set foot on the wholesale market, to carry out the empirical test micro power grid, California, USA ~ ~ NEDO project
Strengthening the reliability of the state grid electric storage device
California has made a "2045 years ago, fully USES the greenhouse gases" zero emission energy supply the state electricity SB100, the state laws surrounding the introduction of renewable energy has established high goals.For ensure the reliability of the grid at the same time to realize this target, in view of the California solar electricity generated in the morning and at night to peak, adjust the energy supply and demand fluctuation has become the top priority.As one of the solutions, the government formulated the state law AB2514, require electricity service by introducing electrical equipment to support renewable energy storage battery, at the same time to ensure that service providers have a reasonable income through electric storage device, the government is pushing periodic electrical wholesale market in the new system design.
In this context, NEDO with the state of California in 2015 signed the basic agreement (MOU: a Memorandum of Understandi雷电竞app官方ng), sumitomo Electric industries, and has 3.7 million customers of large Electric power Company in San Diego San Diego Gas & Electric Company (hereinafter referred to as the "SDG&E Company"), to popularize the vanadium flow batteries as the goal to carry out the empirical career.2016 all vanadium flow batteries facilities construction, empirical began in 2017.This is the global companies to promote a large project, is the good opportunity, but the road is full of hardships before cooperation.
Sumitomo Electric U.S.A., Inc. (hereinafter referred to as the "SEUSA") of the Senior Vice President and wild waves and jung said: "we contact NEDO starting around 2012, shows in California to carry out the whole cause of vanadium flow batteries related proposals.NEDO adopted after completion of a feasibility study on our proposal, but to empirical business contract, must by sumitomo electric industries, SEUSA, NEDO and SDG&E the 4 companies come to an agreement.But all vanadium flow batteries positive career also is the first time, there is no reference sample.Is given priority to with business risk to explore, around all vanadium flow batteries to ensure the respect such as performance, we compiled the contract together with related people.In this process, I actually realized people's enthusiasm for vanadium flow batteries for all."
In 2014, the empirical project started.
Electricity wholesale market in the whole vanadium flow batteries using optimization
Nagaoka good act as the project manager in the demonstration project."In the first phase of the demonstration project, we use the configuration from SDG&E company within the substation of 2000 kW (8000 kWh) x 4 hours full of vanadium flow batteries control mode, the basic characteristics of the vanadium flow batteries and reliability were evaluated.But is the purpose of this empirical project including transmission electricity wholesale market1Trading, to evaluate its reliability, therefore must optimize method.To this end, we build up a good relationship of trust with SDG&E company, by providing information such as work down-to-earth to promote the project, including.In the process of build relationship, I realized the full demonstration project."(nagaoka)
The second stage, in the wholesale electricity market using all vanadium flow batteries, refers to the total vanadium flow batteries into the California Independent System Operator (California Independent System Operator, hereinafter referred to as the "CAISO") to open the electricity wholesale market.In the electricity wholesale market, in addition to outside the frequency adjustment such as short cycle power ability, also have the ability to adjust the length of time the power supply energy period fluctuations.Innovation part of the United States at that time the Core SEI, Inc., is now under RF battery development department of kitano, a participated in the related application of the electricity wholesale market.
"In terms of use, all vanadium flow batteries there is no limit to the charge and discharge frequency, therefore can meet the short cycle at the same time power and battery charge and discharge of the two requirements for a long time.In addition to the required power supply of the energy market, we in the frequency adjustment auxiliary service market2In a flexible combination of the way to carry out a variety of trading, according to the optimal use of technique, season and period verified finally ensure the certain benefits.Can we successfully excavated vanadium flow batteries new value."(kitano)
As NEDO project director of RF battery development, handsome husband, and as head of accounting contract and expenses related to management of the sales department stone black margin provides support for the empirical career from Japan.
"My main technical matters related project progress of the United States and Japan, including report to NEDO positive progress.I very the attention promptly and accurately report to NEDO empirical data, in order to maintain trust relationship.I had the opportunity to participate in the as business enterprise key nodes, hope to impart the knowledge and insights generations."(he)
"This demonstration project for the amount of about 3 billion yen, up to seven years of very large scale projects, the original budget implementation delay that caused delay, etc, but through coordination with NEDO and north American partners and bargaining, I succeeded in play as executive manager role.I know the responsibility, at the same time also has a sense of achievement."Stone (black)
Wholesale market: * 1 transmission electric power market CAISO will operate.Consists of yesterday's market and real-time market, powered by the winner.
* 2 ancillary services market, the system using the agency responsible for the maintenance of power system frequency, through market adjustment with the power supply frequency.To achieve the same amount of power as the goal, at the same time have the ability to adjust and prepare the ability of the market.
The japan-american micro grid empirical test for the first time
End of the third stage is refers to the global with all vanadium flow batteries, for the first time in peacetime and disaster, joint operation of the demonstration project.Because all vanadium flow batteries easy realization and can cope with the large capacity discharge for a long time, so people think it is to improve the disaster BCP (business continuity plan) countermeasures and resilience (recovery) is very effective."Micro power grid has in view of the community (households and businesses, etc.) clear beforehand good area of the source of energy supply, in the process of building a" micro grid ", all vanadium flow batteries will play a huge role.From commercial grid operation, the use of the actual distribution network, formed in the micro grid of vanadium flow batteries for power supply.This is based on the actual power system test, SDG&E trust sumitomo electric company production of all vanadium flow batteries, to solve the problem cause inconvenience to ordinary citizens, are positioned for later, resolutely carried out the experiment.In the end, the japan-american empirical test is completed, for the first time confirmed that the total vanadium flow batteries as an independent power supply can be continuous power supply to power region.Then, a series of empirical project ended at the end of 2021, now as SDG&E practical application and operation of the company.
For demonstration project, SDG&E company of Distributed Energy Resources Manager, Laurence Mr Abcede recalls:
"All vanadium flow batteries by the energy and ancillary services markets to provide support for power grid, long system failure occurs, it can play a good recovery, as the energy storage battery system, its high performance has been confirmed.In the future, SDG&E company will continue to collect data, is committed to apply and bidding strategy optimization.We are looking forward to sumitomo electric production all vanadium flow batteries to achieve a higher level of evolution."(Mr Abcede)
NEDO DaLing, head of the British Mr Aso also gave high evaluation:
"Sumitomo electric: doing my best for this project, the project completed smoothly.In addition to effectively improve the system stability, operation rate reached almost 100%, which also proved the high reliability of energy storage battery.Micro grid empirical success is also an important achievement.This is also the japan-american excellent examples of cooperation.From the view of the social actual installation rates of ascending energy storage battery, I hope sumitomo electric to further reduce the cost of all vanadium flow batteries."(Mr DaLing)
The RF battery technology minister shibata jung and is the commander of the project.
"In the process of speed up the introduction of renewable energy, we found that the total vanadium flow batteries hide big potential.I can proudly say, total vanadium flow batteries in sumitomo electric production technology has reached the world's highest level.I hope to be able to solve each subject, and are eager to expand the market.From the goal, the whole existence of vanadium flow batteries will speed up the introduction of renewable energy, help to achieve decarburization society."(shibata)
There's little doubt that, sumitomo electric production all the popularity of vanadium flow batteries, is a major step towards a sustainable future.