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A Brief Discussion on the Development of the Power Transmission and Transformation Industry
Release Time:
2025-03-12
China is currently the world's largest producer and consumer of energy, and ensuring a safe and stable energy supply is crucial to its economic and social development.
China is currently the world's largest energy producer and consumer, and ensuring a safe and stable energy supply is crucial for economic and social development.
However, due to uneven economic development across the country, regional electricity consumption shows imbalances such as "higher consumption in the east and lower in the west" and "dispersed electricity load in rural areas." In the past, the country solved this by adhering to the principle of regional self-sufficiency, building power plants near high-consumption cities. However, the rapid development of coastal areas in recent years has led to a much higher density of thermal power plants than the national average, resulting in a rapid decline in the environmental carrying capacity of coastal areas and frequent haze. Rural electricity consumption often suffers from high transformer idle losses. In the face of imbalances in energy production and consumption between east and west, and high idle losses in rural areas, the possibility of adjusting the energy structure through spatial and temporal coordination to improve the environment in the eastern regions is attracting increasing attention.
To alleviate this energy imbalance, in recent years the country has shifted the focus of power construction from power generation to grid construction. According to statistics from the China Electricity Council, grid investment from 2008 to 2013 was 289.5 billion yuan, 389.8 billion yuan, 344.8 billion yuan, 368.7 billion yuan, 366.1 billion yuan, and 389.4 billion yuan, respectively. At the 2014 State Grid Corporation work conference, the State Grid Corporation planned to complete fixed asset investment of 403.5 billion yuan this year, of which 381.5 billion yuan was for grid investment, representing a growth rate of nearly 20%. According to the National Development and Reform Commission's "Twelfth Five-Year Plan for the Power Industry and 2020 Development Plan (Draft)", total grid investment during the Twelfth Five-Year Plan period is expected to reach 2.5 trillion yuan, with annual investment exceeding 500 billion yuan.
With increased national investment in the power grid, relevant policies have been introduced. In 2011, the country decided to implement a new round of rural power grid renovation and upgrading project, with an investment of 200 billion yuan. Based on an estimated 60%-65% investment in equipment, about 120 billion yuan will be used to purchase power transmission and transformation equipment, including transformers, switches, and cables. In January 2014, the National Energy Administration proposed at the national energy work conference to strictly control coal-fired power projects in the Yangtze River Delta, Pearl River Delta, and Beijing-Tianjin-Hebei regions, focusing on the construction of Northwest coal-fired power and new energy bases, and emphasizing the construction of 12 "West-to-East Power Transmission" channels to solve the problem of power transmission from energy bases. The Twelfth Five-Year Plan for the Power Industry and the State Council-approved "Development Plan for the New Energy Industry" propose that during the Twelfth Five-Year Plan period, investment in China's power grid construction will reach 1.5 trillion yuan, intelligent substations will be rapidly promoted and become an important part of the smart grid, and the construction of ultra-high voltage lines will be fully launched, forming a "three vertical, three horizontal, and one ring network" ultra-high voltage AC grid in the "three Hua" regions (North China, East China, and Central China) in 2015.
Source: Industrial Electrical Appliances Network
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