Inventory of new energy trends, optimistic about the photovoltaic landscape

The renewed controversy over the preparation of gasoline for corn, the low price of bidding for the photovoltaic project in Qinghai, and the forthcoming “Development Plan for Emerging Energy Industry”... As if all of a sudden, all sorts of topics on energy resources have recently come to fruition. Among them, China, which has the world's forefront of coal reserves, has officially become a net importer of coal. In particular, we have experienced the energy crisis in the past, which 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 Solution

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. "At present, the wind power generation technology is relatively mature, and the on-grid electricity price of wind power (0.51-0.61 yuan / kWh) is relatively low compared with other new energy sources, and the scale is also relatively large."

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, but abundant offshore wind resources and market potential for improving the energy shortage in the economically developed coastal areas of the east provide wind power with another, 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.

Because of 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 the smart grid can solve this worries, but the wind power industry that has been on the move for a long time or even a little bit faster has waited.

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 sunshine of the dream into reality.

In less than 10 years, China's photovoltaic industry has rapidly grown to become one of the few strategic emerging industries in China that can compete with international rivals 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, with the cost still to be lowered, the market pattern of “Forces and Forces in the Outside World” is a problem that PV needs to solve in order to truly serve the people in a 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 was only over 300 MW, accounting for less than four-tenths of the total installed capacity of electric power. The industry support policies of the “Bright Plan” and “Golden Sun Plan” initiated by the government have led to better product demand than nothing. The orders of domestic manufacturers are basically from the frontier countries of photovoltaic development in Europe, especially Germany and Spain. They 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 photovoltaic 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 ways complement each other and promote each other. In contrast, the photovoltaic industry is one of the most promising.” Dr. Song Dengyuan, the domestic photovoltaic company and the chief technology officer of Yingli Group, has no doubt. 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 is not only the identity of the main food crop, but also have such a “big name” position in the biomass energy circle.

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 converted into conventional solid, liquid, and gaseous fuels. The grass and trees are plentiful and the spring breeze is born. This is an inexhaustible source of renewable energy. Many countries in the world have already begun 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, the currently available biomass energy resources are mainly traditional biomass, including forestry trees, crop stalks, fuel wood, livestock manure, domestic garbage, industrial organic waste residue, and wastewater. 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 to develop energy forests.

However, although the development of biomass energy has always been 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 guaranteed first, 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 dispute over the production of ethanol from corn can be largely attributed to raising people or feeding cars. 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.