Motor efficiency increased by 1%, saving 26 billion kilowatts per year
If you can save energy from the motor, the prospects are considerable.
The group of data given by Wang Qinping, executive vice president of China Energy Conservation Association, is more attractive: if China's motor efficiency is increased by 1%, it can save about 26 billion kilowatts per year; if the efficiency of the motor system is increased by 5% to 8%, the annual The electricity consumption is equivalent to the power generation of two or three Three Gorges Dams.
Because of the huge potential for energy saving in the motor system, on June 10, 2013, the Ministry of Industry and Information Technology and the General Administration of Quality Supervision, Inspection and Quarantine jointly issued the “Motor Energy Efficiency Improvement Plan (2013-2015)”.
The plan proposes that by 2015, it will promote the promotion of high-efficiency motors of 170 million kilowatts, the elimination of 160 million kilowatts of low-efficiency motors, the implementation of motor system energy-saving technology reform of 100 million kilowatts, and the implementation of high-efficiency remanufacturing of 20 million kilowatts. It is estimated that in 2008, energy saving will be 80 billion kWh, equivalent to saving 26 million tons of standard coal and reducing carbon dioxide emissions by 68 million tons.
Under the favorable policy, many enterprises have joined the army of high-efficiency motor transformation.
Zheng Tan told reporters about such an example.
“The circulating cooling water system of a chemical plant in Zhenjiang runs all year round, and the efficiency of the motor is low.” Zheng Tan said, “In fact, it is not difficult to carry out energy-saving renovation of this system. It can replace and renovate motors, pumps and flow regulating devices. Optimizing in these three aspects will maximize energy-saving potential, saving 620,000 kWh per year, saving electricity costs by 460,000 yuan, and the investment return period is about 1.7 years."
As a high-energy-consuming industry, Jiangsu Helin Cement Co., Ltd. used nearly 600 million kWh of electricity in 2014, and implemented energy-saving renovation through rolling energy management mode. The annual electricity consumption was 42 million kWh, saving 7623 tons of standard coal. The electricity bill is 23.1 million yuan.
"In recent years, China has strengthened the guidance and restraint of standards. Over the past two years, it has promoted high-efficiency motors, eliminated low-efficiency motor systems, and energy-saving renovation of more than 40 million kWh." Wang Wei said.
Some experts predict that by 2020, the installed capacity of electric motors in China will reach 4.5 billion kilowatts. At present, the installed capacity of electric motors in China is about 1.2 billion kilowatts. The newly added more than 3 billion kilowatts will bring huge huge energy-efficient motors and special motors. Market space.