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China encourages PPP to build small power generation and distribution systems

China encourages PPP to build small power generation and distribution systems

  • Categories:Trade News
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  • Time of issue:2021-09-26
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(Summary description)On July 24, the national development and Reform Commission and the National Energy Administration jointly issued the Trial Measures for promoting the construction of grid connected microgrid (hereinafter referred to as the Trial Measures), encouraging local governments to provide supporting policy support for the

China encourages PPP to build small power generation and distribution systems

(Summary description)On July 24, the national development and Reform Commission and the National Energy Administration jointly issued the Trial Measures for promoting the construction of grid connected microgrid (hereinafter referred to as the Trial Measures), encouraging local governments to provide supporting policy support for the

  • Categories:Trade News
  • Author:
  • Origin:
  • Time of issue:2021-09-26
  • Views:0
Information

On July 24, the national development and Reform Commission and the National Energy Administration jointly issued the Trial Measures for promoting the construction of grid connected microgrid (hereinafter referred to as the Trial Measures), encouraging local governments to provide supporting policy support for the development of microgrid, so as to gradually establish a centralized and distributed coordinated energy production and consumption system. In order to improve the construction efficiency, the trial measures specifically proposed to encourage all localities to carry out the construction and operation of microgrid projects through PPP mode. In the view of the industry, the current pressure on China's power grid is increasing, and Microgrid is conducive to improving the efficient application of distributed power generation and realizing the reliable supply of multi line energy.

The so-called microgrid is a small power generation and distribution system different from the main power grid. The Trial Measures specify that microgrid power supply is composed of distributed power supply and power load, which can adapt to the rapid development of new energy, distributed power supply and electric vehicles, and meet the diversified access and personalized needs. The internal power of microgrid comes from distributed energy sources such as natural gas, photovoltaic and wind power. Large wind power and photovoltaic power stations are built in places with sufficient scenery resources such as the northwest. When users connect small fans, photovoltaic and other power equipment, they can absorb the electric energy nearby, save the loss transmitted in the power grid and improve the use efficiency of energy.

With the increasing peak valley difference of power supply, the pressure on China's power grid is increasing day by day, and the utilization of solar power generation by new energy power plants has further exacerbated the peak valley difference of supply and demand. At this stage, the solution is to develop and improve the grass-roots power grid, that is, micro energy network or micro grid, and solve the problem of mutual transformation of electric energy and other energy through the combination of consumption and production, It has also solved the outlet problem of new energy.

The microgrid power supply should be based on local renewable energy power generation, or the power generation type aiming at the comprehensive utilization of energy such as natural gas multiple supply, and encourage the use of new clean technologies such as fuel cells. Among them, the installed capacity of renewable energy accounts for more than 50%, or the comprehensive energy utilization efficiency of natural gas multi cogeneration system is more than 70%. The integrated operation of micro grid source network load has a unified operation subject. The trial measures encourage local governments and social capital cooperation (PPP) to carry out the construction and operation of micro grid projects by means of franchising. In addition, power grid enterprises can also participate in the new construction and reconstruction (expansion) of microgrid, and the investment and operation shall be calculated independently, which shall not be included in the allowable cost.

In the process of microgrid construction, assembling sensors, distributed energy and energy storage equipment all require a lot of funds. If private capital can be attracted through PPP mode, the construction efficiency will be effectively improved. The existing microgrid projects in China have basically completed their complementary functions, but there is a slight lack of demand side interaction. One of the core characteristics of microgrid is to realize the nearby consumption of power. However, according to the current transmission and distribution mode in China, all power needs to be uniformly distributed to users through power grid companies, which not only increases the power price, but also reduces the power efficiency, It is a link in urgent need of reform.

One of the more difficult links in the future microgrid work planning is to explore the microgrid transaction mode, that is, explore the distributed new energy microgrid in combination with the requirements of the power system, build the microgrid into a market subject with independent power sales right, which can supply power to all users in the microgrid, and take the new energy microgrid as the carrier as the independent power sales subject, Direct photovoltaic supply or interaction with nearby new energy projects.

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