Australia's battery energy storage project brings four relevant lessons

According to foreign media reports, the performance report of the two large battery energy storage systems (BESS) opened in Victoria, Australia, was released a few days ago, indicating that they both met or exceeded operator expectations during the 12-month operation period. The 25MW/50MWh Gannawarra battery energy storage system is deployed in conjunction with a 50MW solar farm; the 30MW/30MWh Ballarat battery energy storage system is Australia’s first independently deployed grid-side battery storage system directly connected to the transmission network. Can system. These two energy storage projects have not received as much attention as the Hornsdale battery energy storage project in South Australia (using battery energy storage equipment supplied by Tesla), and the Hornsdale battery energy storage project is not long. The previous expansion was carried out and the installed capacity was added, which helps to understand the effectiveness and potential of the further promotion of battery energy storage systems in Australia. Just like a similar report published a few months ago proving the successful operation of the Hornsdale battery energy storage system, the Ballarat battery energy storage system and the Gannawarra battery energy storage system provide power services to the grid and are relevant to the project’s interests. Those who bring benefits, and frequency response is the most active grid service area for battery energy storage systems. The Ballarat battery energy storage system has a net income of nearly 4.5 million US dollars within a year. The report on the 12 months of operation of the Ballarat battery energy storage system after its opening in December 2018 was announced in late July this year, and it is like Gannawarra battery energy storage. The system operation report is the same and can be viewed on the Australian Renewable Energy Agency (ARENA) website. The study found that the Ballarat battery energy storage system supplied by the energy storage technology supplier Fluence Company and the renewable energy power generation facility with an installed capacity of 620 MW have been deployed in conjunction with the deployment of a total of 7,312 for the energy and frequency control auxiliary service (FCAS) market. MWh of electricity, which is equivalent to the energy storage system’s annual revenue of 6.07 million Australian dollars (4.42 million US dollars). A report from the project partner AusNet pointed out that some problems will occur in the early deployment and operation of large-scale grid-connected battery energy storage systems. These early problems include problems caused by unexpected outages of the local telecommunications network, as well as some preventive modifications to the state of charge (SoC) of the battery, which means that the availability of the Ballarat battery energy storage system during the year was 86.36%. AusNet, the energy service provider that invested in the project, pointed out in the report that these projects will provide four relevant lessons for the energy storage industry when deploying energy storage projects in the future: (1) Technical indicators developers of large-scale energy storage projects should ensure operations There is a clear consistency between the commercial and technical specifications, which means that the battery energy storage system has the appropriate scale and includes all the necessary functions. This is particularly important because the report shows that the accumulated income, that is, performing multiple tasks and responding to multiple market opportunities, is crucial for the future delivery of battery energy storage systems without subsidies. (2) The communication architecture report pointed out that knowing the battery energy storage system and the communication architecture with which it will share data is critical to ensuring continuous operation and minimizing power outages. This includes the ability of the battery energy storage system to receive dispatch targets from the grid or market operator (in this case, the Australian electricity market operator), and the ability of the energy storage system operator to know at any time that the battery energy storage system responds to market signals or opportunities Ability. (3) The reliability test report stated that the early problems that caused the limited availability of the battery energy storage system could be resolved, and these problems affected the availability of the Ballarat battery energy storage system for approximately five weeks. (4) Installed capacity vs. energy storage capacity. The author of this report believes that the income data obtained shows that high installed capacity (MW) and low energy storage capacity (MWh) can provide the greatest revenue value, and allow energy storage systems to operate at a frequency Control ancillary services (FCAS) are operating on the market, while also capturing major events in the volatile energy market. Tesla's battery energy storage system performed well from a technical point of view. At the same time, the Australian renewable energy manufacturer Edify opened and operated the Gannawarra energy storage project using Tesla's battery energy storage system. It will be launched from March to August 2019. And the performance of the two operating periods from September 2019 to February 2020. Edify announced in August this year that the battery energy storage system performed in line with expectations in the energy market, while its frequency control auxiliary service (FCAS) market performance exceeded expectations. During the evaluation period, it performed well from a technical point of view. Edify said that this battery energy storage project has provided some insights from the perspective of development, supervision and deployment to know the conditions required to deploy battery energy storage systems with solar power plants. With government funding, the battery energy storage project is now owned and operated by energy processing and retailer EnergyAustralia. It has been found that the Frequency Control Assisted Services (FCAS) market is more profitable than the energy market, while requiring fewer deep charge and discharge cycles. According to the report, Frequency Control Assistance Service (FCAS) is an important contribution to the strong financial performance of the Gannawarra battery energy storage system. The report said that between July 2019 and February 2020, an average of A$500,000 per month will be obtained income. For example, on January 31, 2020, its price fluctuation means that the average price of the energy market in the three hours from 3 pm to 6 pm is about 11,000 Australian dollars/MWh. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: How to measure the battery power of mobile phones?