The hottest officially recognized peak valley pric

Officially recognized peak valley spread arbitrage mode, the energy storage industry has become popular. On July 2, an energy storage person who has been working in the energy storage industry for ten years and has adhered to it so far can't help but send a message in his circle of friends - the outlook for the energy storage industry when he started his business 10 years ago has gradually become a reality

on this day, the national development and Reform Commission officially released the opinions on innovating and improving the price mechanism for promoting green development (hereinafter referred to as the opinions). The short paragraph about "improving the formation mechanism of peak and valley electricity prices" in this document has attracted great attention of the energy storage industry

the document says: "Strengthen the implementation of peak and valley electricity prices, and use price signals to guide power to cut peak and fill valleys. On the premise that the overall level of sales electricity prices remains unchanged, the provincial price authorities can establish a dynamic adjustment mechanism for peak and valley electricity prices, further expand the implementation scope of peak and valley electricity prices on the sales side, reasonably determine and dynamically adjust peak and valley periods, expand the price difference and fluctuation range of peak and valley electricity prices, and guide users to use electricity at different peak times. Market entities are encouraged to sign contracts that include peak The transaction contract of valley and peacetime prices and electricity. We will promote the development of energy storage by using market-oriented mechanisms such as peak valley electricity price difference and auxiliary service compensation. Use modern information, car couplets and other technologies to encourage electric vehicles to provide energy storage services, and obtain benefits through the peak valley price difference. We will improve the tiered electricity price system for residents and promote peak and valley electricity prices for residents. "

this document is of great significance to the energy storage industry

in the guiding opinions on promoting the development of energy storage industry and technology jointly issued by five ministries and commissions in October last year, the strategic development orientation of energy storage has been clarified, and the industrial development goal of ten years in two steps has been clearly put forward, but the issue of energy storage subsidies has not been mentioned. On the contrary, the document encourages developers of energy storage projects to find ways to make profits by themselves, such as using some existing power market mechanisms, such as providing auxiliary services; And possible mechanisms in the future, such as similar capacity payment fees in the field of pumped storage

as for the price mechanism of energy storage development, the opinions of the national development and Reform Commission clearly pointed out that "we should use market-oriented mechanisms such as peak valley electricity price difference and auxiliary service compensation to promote the development of energy storage". Yue Xiuhu, director of the price department of the national development and Reform Commission, said when interpreting the "opinions" of the national development and Reform Commission, "energy storage enterprises can buy low-cost electricity at the trough and sell high-cost electricity, so as to achieve profits and achieve benign development." The business model of energy storage, which has been explored by the industry to arbitrage the peak valley price difference, has therefore been officially recognized

according to the statistics of Zhongguancun energy storage industry technology alliance (cnesa), the compound growth rate of the cumulative installed capacity of global electrochemical energy storage from 2012 to 2016 reached 32%, which is the fastest-growing energy storage technology; By the end of 2017, the cumulative scale of electrochemical energy storage that has been put into operation in China is 389.8mw, and the newly planned and under construction installed capacity is 705.3mw. It is expected that the continuous operation of new projects will support the high growth rate of electrochemical energy storage. In 2017, 121mw electrochemical energy storage projects were newly put into operation in China. According to the application scenarios, they are mainly distributed in the fields of centralized renewable energy, auxiliary services and user side. Among them, the power scale of the user side field is the largest, more than 70mW

as for strengthening the implementation of peak valley electricity price, Yue Xiuhu explained that the opinions further strengthened the implementation of peak valley electricity price policy, allowing local governments to expand the implementation scope of peak valley electricity price policy in combination with their own reality. On the other hand, you can determine and dynamically adjust the time period by yourself. When is the peak and when is the valley can be determined by all regions according to their own conditions. They can also be allowed to widen the price difference between peak and low electricity prices

Zhongguancun energy storage industry technology association needs plastic processors to test by themselves at the end of production and operation. League researcher Li Daixin told eknower that for industrial and commercial user side energy storage, if the price difference between peak and valley is widened, it will directly help to increase the income of current user side energy storage. For residential users, if the price difference between peak and valley is large enough, the self use of household light storage similar to Germany will gradually show market opportunities in the future

among the current user side energy storage projects, Jiangsu (the maximum price difference between peak and valley can be up to more than 9 Mao per kilowatt hour), Beijing and other economically developed provinces and cities are the most concentrated

it can be seen from eknower's collation of the current peak and valley electricity price policy across the country that 34 provincial administrative regions across the country, including Beijing, Guangdong, Hainan, Hebei, Henan, Jiangsu, Ningxia, Shaanxi, Shanxi, Shanghai and Xinjiang, have made lithium titanate battery, an actually not new technology, enter the public's view again, and 16 provinces and cities in Tianjin, Zhejiang, Gansu, Yunnan and Qinghai implement the peak and valley electricity price policy

Liu Yong, Secretary General of the energy storage application branch of the China Association of physical and chemical power sources, told eknower that all regions have a lot of their own considerations for the formulation of peak valley price difference policies, including power consumption structure, support for the energy storage industry, etc

some industry insiders said that the issuance of the document by the national development and Reform Commission may also speed up the implementation of peak valley electricity price policies in some economically developed eastern regions that originally have the need to reduce the peak valley difference

as for the current peak valley electricity price level, the industry generally believes that to promote the development of the energy storage industry on the user side, the peak valley electricity price difference of 70 cents is a threshold

however, a person in charge of the marketing department of Jiangsu electric power company told eknower that the price difference of more than 70 cents only means that there are more opportunities for energy storage to participate in the user side energy storage market, but it is also necessary to distinguish specific battery types. The costs of lithium iron phosphate and lead carbon are different, including the service life of batteries, the scale of energy storage power stations, and the stability of power enterprises will have an impact on the final income

from the current market competition pattern, lithium batteries and lead-acid batteries occupy most of the electrochemical energy storage market. Electrochemical energy storage carriers are various secondary batteries, mainly including lithium-ion batteries, lead-acid batteries, sodium sulfur batteries and liquid flow batteries. From the performance comparison of various energy storage batteries, lithium batteries and lead-acid batteries have obvious cost advantages over other routes due to their good industrialization foundation, so they are the main participants in electrochemical energy storage at present. In terms of the global distribution of electrochemical energy storage technologies, lithium-ion batteries have the largest power scale. In 2017, 846mw of new power was put into operation, accounting for more than 90% of electrochemical energy storage; While the domestic share is mainly occupied by lithium-ion batteries and lead-acid batteries. In 2016 and 2017, almost all new electrochemical energy storage uses lithium-ion batteries and lead-acid batteries, of which the two accounted for 51% and 49% respectively in 2017

however, Liu Yong said, "in terms of the current market, lead-carbon battery technology has great advantages, and the advantage of lithium battery is not obvious enough."

in recent years, the general downward environment of electricity prices has also made some people in the industry pessimistic about the increase of peak and valley electricity prices, and also pointed out the direction for the development of China's plastic granulator technology. When talking about "significantly reducing the non tax burden of enterprises and causing oscillation or pipeline leakage", the 2018 government work report proposed to reduce the electricity link charges and transmission and distribution prices, and the general industrial and commercial electricity prices should be reduced by an average of 10%. "Peak valley electricity price multiples become higher, but the absolute value is not high, it is still difficult to make money." An energy storage enterprise executive told eknower

as the most popular area of user side energy storage in China, Jiangsu Province is actively promoting and studying more demand response and other incentive measures such as peak and valley electricity price policy. Liu Yong believes that the development of the energy storage industry also needs more industrial policy support, including tax, access to social capital, and access support, and other forms of more favorable combinations to provide a benign development space for the market

although there are still pessimistic voices, this market is worth looking forward to. If the price difference between peak and valley electricity prices increases, how much energy storage market space will it bring? Taking wind power and photovoltaic power as examples, according to the statistics of institutions, by the end of 2017, the total installed capacity of wind power and centralized photovoltaic power in China was 265gw, which is expected to generate 26.5gw demand according to the 10% matching proportion of energy storage devices. This is obviously a huge market opportunity. At the same time, the explosive growth of distributed photovoltaic is also expected to drive the application of electrochemical energy storage in user side arbitrage in the field of distributed photovoltaic

according to the industry research white paper provided by cnesa in April this year, among the main scenarios of China's energy storage market in the next three years, commercial energy conservation accounts for 27.8%, peak shaving and frequency modulation accounts for 24.1%, and household photovoltaic accounts for 18.5%. How much the new deal will increase the market share of user side energy storage depends on the specific implementation of the policy