Global power energy storage development present situation analysis


Energy storage systems in the world where more and more important in the power system. The forecasts suggest that by 2030, the world energy storage capacity is expected to rise to three times now. Energy storage growth mainly comes from the promotion of renewable energy and raises requirements for electric power system. At present, occupies the absolute leading position in global energy storage structure or pumped storage power station, but experts predict that in the long run, other types of energy storage than to grow. Now all countries in the world are actively encourage the development of energy storage market, new energy storage projects in recent years and its combined capacity is expected to increase several times.


Global energy storage capacity increased by 70% over the past ten years

Energy storage is through the main function of power stations and other energy infrastructure of electricity peak valley load adjustment to optimize power production. Application of energy storage facilities can ensure the stability of power system at the same time reduce the use of standby power generation equipment, and under certain conditions to reduce power generation costs. The U.S. department of energy (doe), according to data from 1997 to 2017, the world energy storage system capacity increased by 70%, reached almost 170 gigawatts.

Energy storage capacity bigger countries with Chinese (accounted for 19% of global energy storage capacity), Japan (17%), the United States (14%), and some European countries (Spain, Italy, Germany, etc.). Despite the energy storage system is varied, pumped storage power plant in energy storage in the total installed outshine others, accounted for 96%. Most of the pumped storage power plant and hydropower, nuclear power plant, together with the use of in many countries are promoting. Under the limitation of existing technology and economy, other types of energy storage (electrochemical battery, compressed air system, thermal energy storage, etc.) less popularity. At the same time, due to the specific conditions of different, energy storage purpose each have differences, the choice of the ways of energy storage also depends on the capacity, energy storage duration, unit cost, efficiency, use fixed number of year, charging times, cover an area of an area, the environmental impact, and many other requirements.

With the growing importance of applying energy storage systems, countries around the world have introduced energy storage incentives, and barriers to the market development, specific include: support for the development of energy storage technology, formulate relevant norms and standards, and establish and perfect the laws and regulations of involved in energy storage, etc., such as Europe and the United States some countries have begun to actively perfect energy legislation, etc.

Battery energy storage will play an important role

Expected to renewable energy generation (has the characteristics of the output instability, such as solar power and wind power), distributed power supply, smart grid and the development of the electric car market will drive further growth of the global energy storage market. Experts believe that at the same time, although there are still a lot of pumped storage power station's large-scale project planning (in China), but in the long term, in the energy storage capacity structure, proportion will pump storage power station shows the tendency of decrease. International renewable energy agency (IRENA) in the outlook of the electric power storage and renewable energy: 2030 years of cost and market of the basic forecast scenario, by 2030, the global energy storage capacity will increase by 42% ~ 42% in 2017, if renewable energy growth is strong, the energy storage capacity growth rate will reach 155% ~ 227%. At the appointed time, renewable energy (excluding large hydropower stations) in the proportion of the terminal energy consumption in the world will double, to 21%. According to all the different forecast, pumped storage capacity increase of about 40% ~ 50%, as for the proportion in the structure of global energy storage capacity, but also on the development of other types of energy storage technology, is expected to be in the range of 45% ~ 83% range.

Battery energy storage will play an important role in the changing structure of energy storage capacity. IRENA is expected that by 2030, energy storage battery costs will be reduced 50% ~ 70%, and no serious loss of life and the number of charging will be improved significantly. Although the IEA and IRENA alike don't think the battery energy storage device (mainly industrial energy storage device) will replace the existing power system on a large scale in a short time of peak shaving force, especially natural gas power plants, but the battery has advantages in power system frequency modulation, and all the size of the battery can achieve relatively fast production and construction. In addition, the battery production technology development also directly decided the prospects of the development of electric vehicles, can be in peak load period of electric energy in the system have the effect of power supply.

To sum up, the accumulator is an important part of the future electric energy systems. The rapid development of the energy storage technology will bring significant change to energy system. That, of course, to a certain extent negative impact on demand for fossil fuels, after all, energy storage will increasingly replaced thermal power, in the electric power system's powerful ability of power regulation.

Russia's energy storage market present situation analysis

Like the rest of the world, Russia's energy storage market is dominated by pumped storage. In the domestic transport of large Mr Gore, pumped storage power station - 1, the installed capacity of 1.2 gw, power pump of 2.6 billion KWH, and the large jersey even cukor pumped storage power station (as jersey even cukor hydropower station - part of the pumped storage power station) and cascade Cuban river hydropower station group of pumped storage power station, the installed capacity of 140 mw and 15.9 mw respectively. Other types of energy storage are not yet widely available in Russia and are relatively weak (about 500 KWH). Arguably, the 1.36-gigawatt pumped storage plant accounts for about 99 percent of Russia's energy storage market.

In recent years, the development of energy storage has been included in a series of domestic planning and strategy documents. Energy storage is an extremely important technology for the development of renewable energy and distributed power generation, according to the scientific and technological development prospect of the Russian fuel energy complex field (2016 edition). National technology initiative roadmap "EnergyNet" (2016 edition) energy storage as intelligent distributed energy and the priority to the development direction of mixed gas power generation technology, put forward 2019 years ago to application of intelligent distributed energy technology in remote villages and towns that activate energy system automatic control experiment project, including the development of renewable energy and energy storage technology. The outline of market development of Russian federal electric energy storage system (2017 edition) sets the long-term goal of Russian energy storage market development.

At the moment, Russia's energy storage is not growing as fast as the global average. Legislation in the energy field is a major obstacle to the active development and wide application of energy storage technology. The "EnergyNet" roadmap adopted in 2018 aims to improve energy legislation and eliminate administrative barriers to energy development, which is an important step in solving the problem of energy storage development system. The roadmap proposes to prepare adjustments to relevant legislation by the end of 2019 to enable energy storage to participate in electricity wholesale and retail markets and to implement energy-storage related pilot projects.

After the implementation of the pilot project of energy storage participating in the power market, relevant legislation will also be adjusted, and the energy storage system will be promoted and applied in Russia comprehensively by 2021. According to the market development outline of the power storage system, it is optimistic to predict that the installed capacity of Russian energy storage will reach 20 gigawatts by 2035.

In addition to creating conditions for the application of energy storage in the energy field, Russia has also carried out the research and development of energy storage technology, and the production of domestic series of energy storage devices is expected to start by the end of 2018, including:

-- lithium ion battery on-board accumulator with capacity of 2 ~ 4 KWH produced by Liotech;

-- Systemct large capacity (32,000 kilowatt-hour) accumulator manufactured at Novosibirsk national university of technology.

(article source: Russian federal government analysis center website)

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