Moderating Renewable Energy Capacity Is a Must

10:42:53 AM | 22/3/2021

The Ministry of Industry and Trade has just sent document 1226 to the Committee on Science, Technology and Environment, the Economic Committee of the National Assembly and the Government Office regarding the proposals of Trung Nam Construction Investment Joint Stock Company about the reduction in power generation.

In the document, the Ministry of Industry and Trade said that over the past time, the development of renewable energy sources, especially solar power, has achieved many positive results, attracting social resources to invest in this sector, contributing to the efficient exploitation of renewable energy sources in Vietnam.

However, the rapid development with a large capacity of renewable energy sources concentrated in some central and southern regions has caused local overloaded transmission grid with an excess of generating capacity compared to load demand in some specific times and circumstances.

In addition, due to the impact of the Covid-19 pandemic, the demand for electricity is low, the electricity system has an excess of generating capacity compared with the load consumed.

"These are dangerous situations, seriously affecting the safety and security of the electricity system because they can cause the frequency of electricity system to increase (even causing problems to spread across the entire national power system) if there are no precise dispatching orders, timely execution and other urgent solutions,” said the document of the Ministry of Industry and Trade.

Although the National Load Dispatch Center (A0) has deflated traditional energy sources to the technical limit with minimum configuration, the power system still has redundant capacity, so A0 is obligated to further cut down renewable energy sources to ensure keeping the power system frequency within the permitted technical limits, avoiding the collapse of the power system, causing serious losses to the entire production, economy and people’s lives.

The Ministry of Industry and Trade has asked Vietnam Electricity (EVN) and A0 to calculate and announce the reduction of mobilized capacity of power plants in accordance with the structure of generating power sources, the transmission capacity between regions, the necessary level of rotation redundancy at the time of reduced regulation, complying with the principles of transparent uniformity between types, regardless of the types of power sources whether it must be licensed by EVN or exempted.

At the same time, the Ministry of Industry and Trade issued Decision 478/QD-BCT (February 9, 2021) on shifting the peak generation time of small hydropower plants to optimize the mobilization of renewable energy sources in the power system.

According to the Ministry of Industry and Trade, in addition to Trung Nam Construction Investment Joint Stock Company and its member units, the Ministry of Industry and Trade has also received recommendations to prioritize the mobilization of other power resources by many other investors such as Thien Tan Solar Ninh Thuan Joint Stock Company, Cong Ly Construction-Trading-Tourism Co., Ltd. and a number of People's Committees of provinces with renewable energy projects such as Ninh Thuan and Tra Vinh Provincial People's Committees.

Pursuant to the current law provisions, the report of EVN in Document 386/EVN-TTD on reporting and clarifying proposals of investors on capacity reduction in solar and wind power plants, the Ministry of Industry and Trade has issued Document 853/BCT-DTĐL dated February 9, 2021 to the People's Committee of Tra Vinh province, the People's Committee of Ninh Thuan province and the Electricity Regulatory Authority of Vietnam - Ministry of Industry and Trade has sent written document 102/DTVI-HTD to Trung Nam Thuan Nam Solar Co., Ltd., Trung Nam Solar Power Joint Stock Company, Trung Nam Wind Power Joint Stock Company on the mobilization and moderation of renewable energy plants.

Therefore, the Ministry of Industry and Trade said that the reduction of renewable energy plants is a mandatory situation in the context of the national power system oversupply and partially overloaded power grid to ensure the security and safety of the system. The reduction is calculated by EVN/A0, publicly, transparently and equally for all factories, regardless of the investors.

Source: Vietnam Business Forum