As the economy develops, new energy gradually enters everyone's field of vision. Such as wind energy, nuclear energy, solar energy, etc., but new energy will replace coal for power generation, and thus affect the status of coal? Come and analyze with you today!

Wind energy

Wind power generation refers to converting wind kinetic energy into mechanical kinetic energy, and then converting mechanical energy into electrical kinetic energy. Wind energy has the advantages of no pollution, environmental protection and large power generation.

Generally speaking, the greater the wind power, the greater the economic benefits.

But the reason why wind energy cannot be popularized is also fatal. Wind power is a capital-intensive industry that requires huge financial support and covers a large area, which can cause interference to radio; wind power generation is intermittent and leads to instability; in addition, the distribution of wind energy and reserves are very restrictive to its development .

nuclear energy

Nuclear power generation refers to the use of thermal energy released by nuclear fission in nuclear reactors to generate electricity. It is an important way to achieve low-carbon power generation. Nuclear energy is small in size and large in energy, and nuclear resources are more abundant than mineral resources.

However, nuclear power generation is a radioactive element called uranium, and this radioactive element has strong radioactivity. If natural and man-made causes lead to nuclear leaks, the pollution caused is also more serious. And not every city is suitable for the establishment of nuclear power plants, the control of nuclear energy is also one of the reasons for restricting the development of nuclear energy.

Solar energy

Solar energy is mainly divided into two types: photovoltaic power generation and battery power generation, and photovoltaics mainly rely on two semiconductor materials: monocrystalline silicon and polycrystalline silicon. But whether it is silicon or batteries, it will cause pollution to the environment!

The solar panel has a certain life span. Generally, the solar panel needs to be replaced every 3-5 years, and the replaced solar panel is very difficult to be decomposed by nature, causing considerable pollution. In addition, solar energy also has defects such as dispersion, instability, low efficiency and high cost.

natural gas

Compared with coal-fired power generation, natural gas power generation has certain environmental advantages. For example, without emitting SO2 and soot, the nitrogen oxide emissions are only 1/10 of coal-fired power generation.

However, China's gas and electricity lack comprehensive planning, and the problem of insufficient natural gas supply in some areas is prominent. China's natural gas power generation on-grid tariff policy is not yet perfect, and a unified and standardized natural gas power generation on-grid tariff formation mechanism has not yet been formed. And China's natural gas resources are scarce, and most of them depend on imports. And because of the particularity of the gas, it is not easy to store. These are also the problems that restrict natural gas energy.

Humans are inseparable from coal

Coal is still the main energy source

Since the generation of new energy, people began to think of ways to replace coal with other energy, but the result is that people are more dependent on coal. People's demand for coal does not fall but rises!

According to authoritative data from the coal industry sector, in the past three years, China's total coal consumption has been on the rise, respectively: 3.97 billion tons in 2015, 4.36 billion tons in 2016 and 4.49 billion tons in 2017.

The main position of coal as a power generation energy source cannot be changed for a long time.

The 2018 World Energy Statistics Yearbook shows that in the past 30 years, the proportion of global coal power generation has fluctuated around 40%, with little change, and it has always been the "absolute main force" of power generation. Some experts predict that around 2020, coal will surpass oil and become a major global resource again.

In 2018, the National Development and Reform Commission and the National Energy Administration issued the "Energy Production and Consumption Strategy (2016-2030)", proposing that non-fossil energy consumption will increase from 15% in 2020 to 20% in 2030.

However, relevant academicians of the Chinese Academy of Engineering stated that the proportion of non-fossil energy consumption in China in 2017 was 13.8%. To achieve a 30% increase in the proportion of non-fossil energy consumption in the 20 years from 2030 to 2050, it is difficult to achieve unless disruptive technologies emerge. "