What Is Load Management?

Load management ^[1] refers to the use of economic, technical and administrative means to control the growth rate of power system loads.

According to statistics from various countries for many years,

Through effective load management, the peak-to-valley difference of the system power load can be reduced, and the shape of the load curve can be effectively improved. In this way, the operation status of the power grid can be improved, the utilization rate of energy can be improved, the limited power resources can be brought into full play, and the losses caused by the contradiction between power supply and demand can be reduced. It can affect the cost of electricity supply, environmental benefits, the quantity and quality of electricity, and electricity prices. Not only that, through effective load management, it can also generate certain benefits. It mainly comes from the following aspects:

(1) As the peak load of the system is reduced, the system's reserve capacity and installed capacity requirements can be reduced, thereby reducing the investment in new installed capacity and new power transmission and distribution equipment, and to a certain extent reducing the shortage of fuel demand.

(2) The reduction of the peak and valley difference of the system improves the operation status of the power grid, enables the unit to operate efficiently and economically, and improves the energy utilization rate. At the same time, it avoids frequent starting and stopping of the generator set, reduces the unit loss, and reduces the operation and maintenance costs. .

(3) Due to less construction of power plants and less power generation, the emissions of carbon dioxide and sulfur dioxide are reduced, thereby reducing environmental pollution and reducing social investment in environmental governance.

According to the reasons for the benefits of load management, it can be roughly divided into two categories: static benefits and dynamic benefits:

Static benefits

It mainly includes economic benefits, environmental benefits, and ultimately social benefits. Economic effects refer to the various economic benefits obtained by implementing load management, reducing or delaying the construction of new power plants, reducing investment in new establishments, and winning.

Environmental benefits mainly come from the reduction of carbon dioxide and sulfur dioxide emissions due to the efficient operation of the unit, and the savings from reducing environmental pollution.

Dynamic benefits

Dynamic benefits are: due to the implementation of load management. The shape of the load curve is improved, and the climbing and standby benefits reflected by the reliability of the system are improved.