In the first three quarters of this year, progress has been made in reducing the abandonment of water, wind, and solar power, with a general improvement in the consumption level of renewable energy. However, during winter, wind and solar power generation face significant challenges in utilization, leading to increased pressure on local areas to deal with wind and solar curtailment. Additionally, due to flooding at the end of the flood season and extreme weather events, hydropower in Sichuan, Yunnan, and Guangxi continues to experience difficulties. Despite some improvements, achieving effective relief from abandoned water, wind, and solar power remains a major challenge.
To address these issues, local governments and power grid companies have intensified their efforts to expand renewable energy consumption, yielding positive results. According to recent data from the National Energy Administration, the amount of water abandonment decreased by 3.5 billion kWh in the first three quarters of the year. The utilization rate of hydropower in the southwest region increased by approximately 2 percentage points year-on-year. Wind power curtailment dropped by 10.3 billion kWh, with the curtailment rate falling by 6.7 percentage points. Meanwhile, solar power curtailment increased slightly by 1.4 billion kWh, but the curtailment rate still declined by 4 percentage points.
Despite these improvements, achieving a "double drop" in both the volume and rate of renewable energy curtailment requires continued efforts from energy management departments and power grid companies. To boost local renewable energy consumption, the National Energy Administration has urged regions like Xinjiang, Gansu, Shanxi, Inner Mongolia, Liaoning, Jilin, Heilongjiang, and Hebei to work closely with clean heating initiatives to expand wind power and clean heating projects. This includes facilitating electricity market transactions between enterprises, electric heating companies, and users to align with low-carbon development goals. Provincial energy authorities are also encouraged to support cooperation mechanisms between wind power and electric heating companies, under the guidance of grid companies and trading platforms.
Power-restricted regions such as Xinjiang, Gansu, and Inner Mongolia must ensure that their power plants participate in system peak shaving and renewable energy consumption through direct electricity trading or replacement power generation. In Sichuan, Yunnan, and Guangxi, efforts should focus on promoting local electric energy substitution to enhance the absorption capacity of renewable energy.
Expanding cross-regional power transactions is another key strategy. Regional power grids are encouraged to strengthen inter-provincial reserve sharing and coordinate peak load management to better absorb renewable energy. Grid companies must maximize the transmission capacity of key corridors like Hami-Zhengzhou, Ningxia-Zhejiang, and Jiuquan-Hunan, prioritizing renewable energy transmission. Regulatory agencies will monitor and evaluate the proportion of renewable energy in cross-provincial channels annually.
State Grid, China Southern Power Grid, and other companies should collaborate with power trading organizations to expand spot transactions across provinces, helping to absorb more renewable energy. Eastern and central regions consuming renewable energy should combine coal reduction efforts with the introduction of external renewable sources, actively promoting regional cooperation and prioritizing renewable energy use in vacated electricity markets.
Additionally, a linkage mechanism between renewable energy consumption and new construction projects is essential. Localities must intensify efforts to increase renewable energy usage in winter to achieve the "double drop" in wind and solar curtailment rates. Regions with red warnings should significantly reduce curtailment and aim to exit the red zone as soon as possible. Areas with early warnings must prevent curtailment rates from rising. Hydropower investment should be accelerated to eliminate early warning systems.
In regions where wind and solar curtailment rates exceeded 5% this year compared to last year, and where curtailment rates have risen sharply, the scale of new wind and solar installations in 2018 should be reduced, and measures should be taken to halt or delay construction.
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