Every industry has a biological chain. For example, the State Grid and Southern Grid of the power industry are various types of power generation companies (hydropower, wind energy, solar energy, nuclear power, thermal power, etc. ) In the upstream of the biological chain, power construction companies, power generation host equipment suppliers, various component suppliers, and labor service companies. Let's introduce in detail the ranking of 20 18 among the top 500 power industries in the world. State Grid ranked second among the world's top 500 companies, China Southern Power Grid Corporation ranked 1 10, and National Energy Group ranked10/. Other companies will not say it. In short, the profitability of power grid companies exceeds that of power generation companies. In addition to the National Energy Group, 20 18 Guodian Power Group and Shenhua Group merged to form the National Energy Group Corporation, and its operating income exceeded that of China Southern Power Grid Corporation. 20 19 is hard to say. . .
The follow is an introduction to China electric power industry.
Electricity is an energy source driven by electric energy. It is a power production and consumption system composed of power generation, transmission, substation, distribution and electricity consumption. It converts the primary energy of nature into electric energy through mechanical energy device, and then supplies power to users through transmission, transformation and distribution.
Power generation methods mainly include: thermal power generation (combustible materials such as coal), solar power generation, large-capacity wind power generation technology, nuclear power generation, hydrogen power generation, water conservancy power generation and so on.
The main companies involved in the power generation industry in China are: five power generation groups (China Huaneng Group, China Datang Group, China Huadian Group, China Guodian Group and China Power Investment Group) and four small giants (SDIC Power, Guohua Power, China Resources Power and China Guangdong Nuclear Power).
Companies and enterprises involved in power transmission, distribution and electricity consumption in China power industry mainly include State Grid Corporation (referred to as State Grid or State Grid), China Southern Power Grid Co., Ltd. (referred to as China Southern Power Grid or China Southern Power Grid) and Inner Mongolia Electric Power (Group) Co., Ltd. (referred to as Inner Mongolia Power Grid or Meng Xi Power Grid).