We will build a new energy system with energy storage as the core and multiple energy sources complementing each other

Three "world first", new energy stable to ensure the "market"

From January to June this year, China's renewable energy generation capacity increased by 109 million kilowatts, accounting for 77% of the country's new installed capacity. Among them, hydropower increased by 5.36 million kW, wind power increased by 22.99 million kW, solar power increased by 78.42 million kW, and biomass power increased by 1.76 million kW. China's renewable energy generation reached 1.34 trillion kilowatt-hours, of which hydropower generated 516.6 billion kilowatt-hours, wind power generated 462.8 billion kilowatt-hours, photovoltaic power generated 266.3 billion kilowatt-hours, biomass generated 98.4 billion kilowatt-hours. Driven by the development of wind power and solar energy, from the three data of new energy from last year to the first half of this year, we are firmly in the world's first: China's new energy installed capacity is the world's first, new energy power generation is the world's first, and new energy investment is the world's first.

Zeng Shaojun happily introduced that the achievements of foreign trade "new three" are also very bright. In the first quarter of this year, the export of electric passenger vehicles was 64.75 billion yuan, an increase of 122.3%, accounting for the proportion of China's automobile exports increased by 5.1 percentage points, reaching 43.9%; In the first quarter, China's solar cell exports exceeded 90 billion yuan, an increase of 23.6%; In the first quarter, China's lithium battery exports reached 109.79 billion yuan, a growth rate of 94.3%. In the first quarter of this year, the total export of the "new three kinds" increased by 66.9%, an increase of more than 100 billion yuan year-on-year, which increased the overall growth rate of exports by 2 percentage points, and the export scope covers more than 200 countries and regions around the world.

"The performance of new energy is not only impressive in foreign trade, but also unexpected in the guarantee performance of the summer kurtosis." In the first half of this year, China's hydropower generation decreased significantly compared with the same period last year, but the growth of new energy, mainly wind power and solar energy, effectively made up for the decline in hydropower generation caused by the shortage of incoming water. The performance of new energy in welcoming kurtosis is very bright, which effectively supports the transition from dual control of energy consumption to dual control of carbon emissions.

When it comes to why China's new energy can suddenly rise to bear the burden of security, Zeng Shaojun believes that behind the rise of China's new energy can not be separated from technological progress and the efforts of private enterprises. "I know too many respectable private entrepreneurs, and some even don't go out for half a year to engage in scientific research." It is because of the continuous and solid technological innovation of many enterprises in the new energy industry chain that the rapid development of new energy has been promoted and today's situation has been ushered in."

New energy is no longer "new" and is gradually moving in the direction of conventional energy

Data from the National Energy Administration show that the new installed capacity of renewable energy in the country from January to June was 109 million kilowatts, which has exceeded that of fossil energy. Zeng Shaojun pointed out that this means that new energy is not "new", and it will become the main energy to shoulder the heavy responsibility - in the future, it will gradually move toward conventional energy.

"Once the fossil energy supply channel is cut off, can China's new energy shoulder the heavy responsibility to reassure the country?" For the current complex international geopolitical situation, Zeng Shaojun gave a positive answer.

But he also stressed that there is still some way to go before new energy gradually becomes conventional energy. On the supply side, we should make full use of the market mechanism in the future, vigorously promote the clean and efficient use of traditional fossil energy, encourage traditional energy to give priority to the development of renewable energy based on existing technology, equipment, factories, mines and industrial land, and form a horizontal "electricity, heat, cold, gas and water" energy interconnection and collaborative supply between renewable energy and traditional energy. Vertical "source - network - load - storage - control" energy supply among the integrated and complementary pattern. On the demand side, we should speed up the cultivation of new energy consumption concepts, and advocate the general public to accept green and low-carbon energy in terms of energy use awareness and consumption concepts.

Build a new power system and promote the diversified development of new energy storage

Energy security is an overarching and strategic issue bearing on the country's economic and social development, and is crucial to the country's prosperity and development, the improvement of people's lives, and long-term social stability.

Zeng Shaojun introduced that at present, another feature of our country's new energy is distributed. Distributed new energy can provide a strong support for national energy security and extreme conditions. At present, our distributed new energy has risen in the total amount, but the distributed energy quality also needs the technical progress and support of the energy storage system, and it is also necessary to explore miniaturized distributed solar thermal power generation.

"In the first half of this year, our total installed capacity of renewable energy generation has exceeded 1.3 billion kilowatts, accounting for about 48.8% of China's total installed capacity, almost half. But installed capacity is not equal to power generation, wind and solar energy fluctuate, and energy storage technology becomes the technical engine of energy transformation." Zeng Shaojun said.

The report of the Party's 20th National Congress proposed to "accelerate the planning and construction of a new energy system." Accelerating the planning and construction of a new energy system is not only an inherent requirement for actively and steadily promoting carbon peak carbon neutrality, but also an important support for further promoting the energy revolution and promoting high-quality economic development.

Zeng Shaojun believes that the inherent requirements of the new energy system are actually to build a new energy system with energy storage as the core and multi-energy complementary. First of all, energy storage must be the core. Without energy storage as the core, no new energy can independently take on the important task of new energy revolution; Secondly, we must build a new energy system with multiple complementary energies, which is the direction of the future.

To build a new power system, it is necessary to promote the diversified development of new energy storage, promote the development of various forms of energy storage such as thermal energy storage, hydrogen energy storage, and electrochemical energy storage, and support the construction of a multi-energy complementary energy system. It is necessary to adhere to the simultaneous development of centralized and distributed energy storage, actively develop the integration of source, charge, storage and control and multi-energy complementarity, and innovate the energy storage industry model to foster new growth drivers.

Finally, Zeng Shaojun stressed that in the field of new energy, there will be technological upgrading in 3 to 5 years, and there will be big changes in the field of new energy in 5 to 10 years. From a forward-looking point of view, in the next 10 years or even longer, new energy will be developed to perovskite, hydrogen fuel, small nuclear fusion, liquid sunlight and other fields.

Noun interpretation

perovskite: Perovskite solar cells (perovskite solar cells) are solar cells that use perovskite organic metal halide semiconductors as light-absorbing materials, belonging to the third generation of solar cells, also known as new concept solar cells.

Hydrogen fuel: Hydrogen fuel cell is a power generation device that converts the chemical energy of hydrogen and oxygen directly into electrical energy. The basic principle is the reverse reaction of electrolytic water, which supplies hydrogen and oxygen to the anode and cathode respectively, and the hydrogen diffuses outward through the anode and reacts with the electrolyte, releasing electrons to the cathode through the external load.

Small nuclear fusion: The micro nuclear battery (penny-sized nuclear battery) is small, only a coin thick, extremely powerful, very safe to use "nuclear battery". Can be used to charge mobile phones. By using micro - and nanoscale systems, it has developed an ultra-micro power supply device that emits charged particles through the decay of radioactive material to generate a continuous current.

Liquid sunlight: "Liquid Sunshine" (i.e. "clean methanol" and "green methanol") refers to methanol produced with very low or zero carbon emissions during production. "Liquid Sunlight" was named by the Liquid Sunlight Research Group of the Chinese Academy of Sciences, and was publicly published in the international journal Joule in September 2018, and has been unanimously recognized by the international academic community and peers.