The Rainy Season’s Conundrum: Northern Vietnam’s Tightrope Walk Between Hydropower and Energy Deficit

The energy reserves are typically low towards the end of the dry season, which puts the Northern region at risk of peak power shortages during certain periods.

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According to a recent report released by the Ministry of Industry and Trade, the cumulative electricity production and import for the first six months of 2024 reached an estimated 152.347 billion kWh, a 12.43% increase compared to the same period in 2023.

Northern region still faces power shortage risks. Photo: EVN

In the first six months of 2024, the hydrological situation of hydroelectric reservoirs in the northern region improved, and some hydroelectric plants discharged water according to operating procedures. The hydropower sources were mobilized based on the actual hydrological situation.

Thermal power sources, especially coal-fired power plants in the northern region, were reasonably mobilized to meet electricity demands.

Combined with the solution of enhancing electricity transmission from the southern and central regions to the north in the first months of the year, the electricity supply situation for the entire system in the first half of 2024 was favorable, ensuring sufficient electricity for production and daily life of people across the country, especially during holidays and Tet.

The Ministry of Industry and Trade stated that at the end of June, they organized a meeting with EVN and the National Load Dispatch Center to review the Power Supply and National Power System Operation Plan for July 2024. According to updated calculations, electricity supply will be basically guaranteed for the remainder of 2024.

However, the Ministry of Industry and Trade noted that for the northern region, due to the low reserve capacity and electricity volume at the end of the dry season (end of June), there is a risk of peak capacity shortage at certain times if multiple large generator units experience failures or if the load demand increases abnormally.

The Ministry of Industry and Trade also assessed that the sudden increase in electricity demand since the beginning of 2024 has posed challenges for ensuring a stable electricity supply.

Therefore, the ministry will closely monitor and supervise fuel supply (coal, gas, oil), power plant operations, and urge and direct corporations, general companies, and related units to continue strictly implementing solutions to ensure a stable electricity supply for the remaining months of 2024.

According to the Electricity Regulatory Authority (Ministry of Industry and Trade), the northern power system basically meets the demand for load capacity, but the reserve capacity of power sources remains low.

In July 2024, with the scenario of extreme prolonged heat, in case the coal-fired thermal power plants encounter failures or reduced capacity, the northern power system may run out of reserve capacity.

In this case, we will resolutely implement the dispatch of load demand between peak hours and mobilize additional diesel power sources borrowed from customers to ensure a sufficient electricity supply.

During the period from August to December, the reserve capacity of the northern power system will still be low, and power generation units need to continue strictly implementing measures to maintain available capacity and equipment readiness.

For the southern and central power systems, they are capable of meeting the peak load demand throughout 2024.

However, with the significant decline in domestic gas sources and the suspension of gas fields for maintenance and safety reasons, it is necessary to mobilize flexible sources such as switching to using diesel oil, supplementing LNG for gas turbine units, and utilizing the Can Tho and Thu Duc oil-fired power plants to meet peak loads and evening peak loads when solar power is not available.

Thuy Linh

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