Inventory of three major new energy trends in China

The topics of new energy have been widely concerned recently. Among them, China, which ranks among the top coal reserves in the world, has officially become a net importer of coal. In particular, we feel that the energy crisis that was predicted in the past is not far away.

There is a way for soldiers to block and water to cover up. Then examine the new energy sources, especially the development status of wind power, photovoltaics, and biomass energy. Who can help conventional energy first?

Wind Power: Leading the Way to Solve the Concern

All indications indicate that wind power is currently at the forefront of power generation as the most mature and most promising technology for new energy development and commercialization.

“From a market perspective, wind power will definitely take a step forward,” said Meng Xianji, deputy director of the China Renewable Energy Society, which is determined by market and technology maturity. "The current wind power generation technology is more mature and the scale is larger."

At present, China has about 1.2 billion kilowatts of wind resources that can be developed, and the available area accounts for more than 96% of the total land area. The offshore wind energy resources capacity is about 750 million kilowatts. The wind energy market in China began to promote marketization in 2003. After seven years of rapid development, onshore wind power has been fully developed, and seven million-kilowatt wind power industry bases have been launched. In the northwest and northeast regions with the most abundant wind energy resources, wind power projects have been expanded to secondary and tertiary cities.

Compared with other developed countries and regions such as Europe, China's offshore wind energy is still in its infancy. However, abundant offshore wind resources and market potential for improving energy shortages in economically developed eastern coastal regions have provided wind power with a broader stage.

However, the grid-connected problems cannot be solved in a day, and large blanks in the independent research and development of core technologies are not filled. The wind-powered “yellow jersey” has always been not practical. Due to the intermittent and unstable conditions, resulting in poor power quality, large-capacity power grids are required to regulate wind power, which is dubbed “junk power” by the power sector. In areas with abundant wind energy resources in China, Chaduo is located in remote areas such as northwest China. The local demand for electricity is relatively small, the power grid is weak, and construction is lagging behind. Although everyone understands that the development of smart grids can solve this worries, but the wind power industry that is on the fast track or even a bit fast is waiting for it?

Photovoltaic: The dream is shining into reality

Like wind power, the word “photovoltaic” has been one of the hot words in the Chinese economy in recent years. Although it has always been the voice of doubt and even criticism, the nature of asking for energy from the sun is doomed to make this industry shine the sun of dreams into reality.

In less than 10 years, China's photovoltaic industry has rapidly grown into one of China's few strategic emerging industries that can compete with its international counterparts and even gain competitive advantage. Chinese enterprises have already shaken off the lowest point of the "smile curve" and are moving toward silicon production in the upstream of the industry. They have become bigger and stronger in the world market.

At present, the cost to be lowered and the market pattern of “outside strong and dry” are the problems that PV will really need to solve in the foreseeable time.

All along, China is considered to be the world's largest photovoltaic market in the future. However, in 2009, the cumulative installed capacity of photovoltaic power generation accounted for less than four-tenths of the total installed capacity of electric power. The government's “Guangming Plan” and “Golden Sun Plan” initiated by the government support the industry’s product demand. The orders of domestic manufacturers are basically from Europe, especially the frontier countries of PV development in Germany, Spain, etc., which are too concentrated and single, and the emerging markets need to be opened up.

In addition, with the future competition for silicon materials for semiconductors, such as the Internet, IoT, and smart grid upgrades, Western countries have already taken precautions and increased their investment in the domestic PV industry. Therefore, in the period of one to two years, China's photovoltaic industry may usher in a new round of challenges.

“The development of new energy should be a process in which hundreds of flowers bloom and multiple forms complement and promote each other. In contrast, the photovoltaic industry is one of the most promising new energy sources.” Dr. Dengdan Tang, Chief Technology Officer of Yingli Group, a domestic photovoltaic company Do not shy away from confidence in the industry and look good. In his opinion, with the advancement of technology and the development of the industry as a whole, the cost of photovoltaic power generation can be solved in three to five years.

Biomass energy: far-sighted and playable

If it weren’t for the “petition for writing” of the previous oil committee, many ordinary people may not know that corn has the status of “big name” in the biomass energy circle besides its identity as a major food crop.

Biomass energy refers to the energy form of solar energy stored in biomass in the form of chemical energy. It basically comes from the photosynthesis of the earth's green plants and can be transformed into conventional solid, liquid, and gaseous fuels. The grass and trees are plentiful and the spring breeze is born. Therefore, it is an inexhaustible source of renewable energy. Many countries in the world began to actively research and develop the use of biomass energy. Among them, the United States and Brazil are relatively successful representatives.

China has abundant biomass energy resources. Under the conditions that can be collected, currently available biomass energy resources are mainly traditional biomass, including forestry trees, crop stalks, firewood, livestock manure, household waste, industrial organic wastes, and waste water. For forestry alone, China has about 44.40 million hectares of barren land suitable for afforestation and energy conservation. There are nearly 100 million hectares of saline-alkali land, sandy land, and mines and oilfields that can be used for the development of energy forests.

However, although the development of biomass energy is always one of the most important directions in the field of new energy, it is still "a farsighted and unstoppable" in comparison with the "wind (light) light (volt)" combination. .

First of all, for a large populous country, food security must be given priority, especially in the context of the gradual decline in the area of ​​cultivated land in recent years and the frequent occurrence of natural disasters. The controversy over the production of ethanol from corn can largely be attributed to the support of people. Still feeding the car. The answer is self-evident.

Second, although there are a wide range of basic conditions for agriculture and forestry, the imbalance in the level of agricultural production and the low efficiency make it difficult to guarantee the quality and collection of raw materials. Extensive forms of straw and hulls used for firewood or direct incineration can be seen everywhere. The increasingly serious soil erosion around the country and the resulting geological disasters such as landslides and debris flows are also suggesting the limitations of forestry biomass energy.

"From the point of view of the profitability of biomass energy production enterprises, it is not very good at present. Raw material collection is difficult. As the radius of collection increases, transportation costs become higher and higher; and resources are also unstable due to natural disasters such as droughts and floods. "Meng Xiankai said.