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【Industry】Energy storage, electric vehicles, power grid, etc. in the future energy location?

Time:2018-01-19

At present, China s energy development is uneven, and the development of distributed energy, energy storage, electric vehicles and other new industries has become a new focus and growth point. In the future, energy transformation from high carbon to low carbon to no carbon, from low to high density, energy storage and renewable energy is inevitable. The new generation of power systems is the development of energy Internet with multiple complementary and high proportions of renewable energy. At the same time, electric vehicles, if combined with renewable energy, are sufficient to ensure the full development of renewable energy.

1, China s energy development status quo

China s energy development is uneven and inadequate, including the mismatch between energy investment and energy consumption, the mismatch between power supply and power grid construction, and the mismatch between coal and renewable energy development. The full development of energy balance is an integral part of the building of a modern economic system. It is also an inevitable requirement for building a beautiful China. It is also an important part of realizing the Chinese dream of improving people s livelihood and well-being.

Shiyubo, executive vice chairman of the China Energy Research Association and former deputy director of the State Energy Administration, pointed out that at present, the energy sector is facing a new round of scientific and technological revolution and industrial revolution in the world. It is standing at the starting point of its own transformation, and the concept of energy Internet and advanced information technology are deeply integrated with the energy industry. It will be a major feature of the future development of energy. Distributed energy, energy storage, electric vehicles and other new forms of energy development are gradually becoming a new focus and growth point in the energy field. The innovation of energy management system, science and technology and industry practice are creating a good external environment and new driving force for energy development.

Energy technology innovation has led to the industrial revolution. A new round of scientific and technological revolution and industrial revolution has been accelerated around the world. Information technology, biotechnology, manufacturing technology, new materials technology, new energy technology, artificial intelligence and other major disruptive innovations have emerged. These innovative technologies are deeply integrated with the energy industry. New industries, new models and new forms of business such as energy Internet, smart grid, distributed energy, large-scale energy storage, electric vehicles, and new energy materials are emerging.

2, the future energy storage and renewable energy combination is inevitable

Germany s renewable energy on January 1 meets full-day needs, and renewable electricity meets Germany s full-day needs. This is a very indicative data. By the same token, the coal age was led by Britain, which had no electricity at all on the first day around October, which was the ancestor of the coal industrial revolution. For China, the energy mix has never been experienced in any big country in history. Mr Chenweidong, former chief researcher at the Chinese Academy of offshore oil and energy, pointed out that China can not retreat coal, use coal, or enter the oil and gas age. In the future, or around 2030, the balance of emissions and energy consumption in China should be about one-third each. The next round of major breakthroughs in energy technology is the time of the new energy era. The trajectory of energy transformation from high carbon to low carbon to no carbon and from low to high density is clearly visible. Technological progress is the fundamental engine of energy transformation.

Recalling the entire course of the development of human civilization, and that in a sense the progress of human civilization is synchronized with this storage technology of our species, from hunting to nomadic hunting, from feeding on Yeguo, from plants to farming, in a sense, a storage advance, From fresh meat to bacon to dried fruit is also an improvement in storage, which is an agricultural society. In the industrial society, the progress of storage is large-scale refrigeration. Now we go to IT. In the electronic age, renewable energy is not continuous and low-density. Through energy storage, it turns non-continuity into continuability and low density into high density. Storage of electricity is inevitable, storage of energy is inevitable.

3, the new generation of power systems under the energy requirements

The new-generation power system is a development model based on renewable energy and clean energy. It is a comprehensive power development model for renewable development. It should be dominated by renewable energy and petroleum-based power generation, and is a member of the Chinese Academy of Sciences. IEEE academician Mr. Zhouxiaoxin pointed out that in 2020 he hopes to achieve 70-80 % of renewable energy and oil source power generation. At the same time, the new generation power system network should be the combination of the backbone grid and the partial grid and the microgrid. The power source is the main power source, and it is still the main force for China. The distributed power supply should be combined.

Mr Zhouxiaoxin summed up four technical features of a new generation of power systems:

First, a high proportion of renewable energy power systems.

Second, a high proportion of power electronic equipment power system.

Third, multi-complementary integrated energy and electricity systems. Here, we pay special attention to the comprehensive utilization of the energy used by our users and reduce energy consumption. The power system must provide comprehensive energy services. The integrated energy system can be divided into two parts, a region called the source base integrated energy and electricity system. Second, in the future, so much renewable energy can not be transported exclusively by the power grid, but must also be eliminated locally and transformed locally. Turn it into something that can be stored and transported. At present, this problem can not be solved by conventional energy storage. It depends on the transportation of hydrogen. It is first necessary to produce hydrogen, and it is necessary to use excess electricity, not only multi-room power, but also wind energy and solar energy.

Fourth, the intelligent power system of information physics fusion is also called the development of energy Internet.

Regarding the understanding of the energy Internet, Academician Zhouxiaoxin pointed out three points:

First, it is an energy network with power system as the core and link, and multi-energy connectivity. The efficiency of comprehensive utilization of energy is greatly improved through synergy and complementarity.

Second, it is the information physics system that the energy system and the Internet technology are deeply integrated. We will use interconnected thinking and technology to transform traditional power systems, make extensive use of Internet love, big data, cloud computing, and substantially increase the flexibility, adaptability, intelligence, and operational management of energy and power systems. We will greatly increase the ability to receive volatile renewable energy sources and facilitate energy transformation.

Third, it is a user-centered energy and power operation business model and service industry, providing users with a convenient and interactive energy and power information comprehensive platform.4, the position of electric car in the future energy structure

High efficiency, low cost, long life energy storage technology, rapid progress, but the overall unsatisfactory. At present, the energy storage of electric vehicles is not the same as that of our electric power grid. Mr. Chenqingtai, chairman of the China Electric Vehicle Hundred People Association, mentioned that we require low requirements, need to have a long life span many times, and the price is cheap. We do not need too strong power. But in general, the resources of electric cars should be fully utilized.

In the past decade, both electric and renewable energy technologies have developed rapidly. Electric vehicles have achieved green emission reductions, relying on the contribution of renewable energy, while large-scale renewable energy depends on the universal ability to eliminate and store intermittent energy. The car battery, which is a mobile micro-storage power station and a mobile micro-power source, can be best matched with renewable energy through the energy Internet. At present, although there are various energy storage means, but from the perspective of flexibility, scale, cost and so on, the in-vehicle battery is a very important way. It can be expected that by 2025, the cost of electric vehicles will exceed that of fuel trucks. Solar and wind power will also cost more than fossil energy. By then, market education will be a powerful force driving the development of electric cars and the transformation of energy structures.

Mr Chenqingtai predicts that by 2030, China will produce 15 million electric cars and own 80 million of them, while most companies will stop for more than 90 % of the time, if each electric car carries 50 kilowatts of batteries. On average, a quarter of cars are plugged into the grid while idle, so that when the grid is recharged, they charge, and when they are closed, they report that, in total, there are about 1 billion kilowatt-hours of capacity involved in balancing renewable energy.

In addition, imagine a decade of in-vehicle battery use, and 80 % of the storage capacity of the storage screen is retired, which is enough to ensure the full development of renewable energy. What is commendable is that this is a huge amount of energy storage that basically does not increase additional investment. There is no doubt that the power of cars and more and more walking machines is shifting from fuel to electricity. If electric cars are powered by coal, then it does not make much sense. If they can be combined with renewable energy, they may benefit society to an unimaginable extent. This is a huge system engineering that affects the overall situation and affects the future.

5, energy technology breakthrough direction

Panjiaofeng, Dean of the Institute of Scientific and Technological Strategic Consultation of the Chinese Academy of Sciences, pointed out that the current competition in the field of energy in the world has turned to energy technology competition. There are four breakthrough directions for energy technology in the future:

First, the clean up of traditional energy is an important means of environmental improvement. In recent years, coal has turned to natural gas, which has also led to the rapid growth of China s energy demand for natural gas.

Second, the main feature of the flexible energy grid is to solve the problem of air, gas and light that has existed for many years, and the core of the improvement of energy consumption lies in the intellectualization of the power grid, the key to accessing the intelligent power grid of renewable energy, and the green system for generating electricity. It is necessary to be accurate to achieve effective control measures in time to ensure the steady operation of the power grid.

Third, energy products and energy systems that are supported by the Internet are networked, and the energy Internet is the core content of the third industrial revolution. In particular, it will play an important role in the future power industry system and realize various types of distributed renewable energy sources. Coordination and optimization control between energy storage equipment and controllable load. The embodiment of the global energy Internet will produce a series of technological breakthroughs, supporting the industrial chain market in the industrial ecological operation, and promoting the upgrading of the world s energy base.

Fourth, distributed and centralized supply of free energy that is inclusive and integrated. Although energy supply in the industrial era is dominated by large-scale centralized network supply, with the efficiency of energy development increasing, the use of local resources to develop distributed energy sources in local areas has become more and more advantageous. Distributed energy supply and large-scale supply are not in conflict, but are complementary and complementary to each other. They can reduce the loss of transportation. Distributed energy can be combined with resource recycling and environmental protection, such as sewage power generation, various types of wind power, and solar energy. Power generation and so on. (Source: Polaris Energy Storage Network)

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