Kina Southern Power Grid Reservoir Energilagring

This paper reports the necessity and feasibility of sharing the hydropower flexibility of Yunnan''s large hydropower bases in the China Southern Power Grid (CSG) …

Who is China Southern power grid (CSG)?

Policies and ethics China Southern Power Grid Co., Ltd. (hereinafter referred to as CSG) was established in 2002. CSG invests, constructs, and operates power networks in Guangdong, Guangxi, Yunnan, Guizhou, and Hainan provinces and regions.

Can China decarbonize the southern power grid by 2060?

Decarbonization of the Southern Power Grid in China is feasible by 2060 but requires converting a large cropland area to support solar and wind energy; expansion of hydropower will impact the transboundary rivers according to a power system optimization model set up for 2020–2060.

How many power grids are there in China?

As a hierarchical multi-area power system with multi-level dispatch centers, CSG governs five provincial power grids: Guangdong Power Grid (GDPG), Guangxi Power Grid (GXPG), Guizhou Power Grid (GZPG), Yunnan Power Grid (YNPG), and Hainan Power Grid (HNPG), which serve more than 252 million people (the basic overview is shown in Fig. 1 ).

What is the power reserve capacity of a power grid?

According to the technical specification for the active power operation reserve of the CSG, the load reserve capacity of the power grid is not less than 2% of the maximal provincial load, and the accident reserve capacity is 10% of the maximal provincial load ( σ = 13 % in this study).

How did CSG improve the power grid?

During “the 11th Five-year” period, CSG enhanced urban and rural power grid construction and transformation, facilitated the rapid development of the main grid network, distribution network, and rural power grid. The total investment in grid construction added up to RMB 302.3 billion, 2.3 times that of “the 10th Five-year” period.

Which CSPG basins are covered by a hydropower simulation?

The simulation covers six basins across the CSPG, i.e., Mekong, Nujiang, Yangtze, Yuan and Red, Pearl, and QSGCRB, which encompass more than 120 GW of existing hydropower capacity and 32 GW of projected hydropower capacity 58 (Table S14).