Northern Vietnam receives a much-needed rain, but are hydroelectric reservoirs running low?

According to the Department of Industrial Safety and Environmental Engineering (Department of Safety and Environment), on June 21st, water levels in hydropower reservoirs remained low. Forecasts indicate that water inflow into the reservoirs will not be high in the coming period. Hydropower plants in the Northern and North Central regions will mainly regulate water to ensure minimum flow, operating at a reduced capacity to ensure the safety of the generating units and raising water levels for power generation.

Specifically, today, the water inflow into Lai Chau reservoir is 945 m3/s; Son La reservoir: 330 m3/s; Hoa Binh reservoir: 330 m3/s; Thac Ba reservoir: 55 m3/s; Tuyen Quang reservoir: 315 m3/s; Ban Chat reservoir: 217.7 m3/s; Trung Son reservoir: 255 m3/s; Ban Ve reservoir: 39 m3/s; Hua Na reservoir: 28 m3/s; Binh Dien reservoir: 6 m3/s; Huong Dien reservoir: 75 m3/s.

Low water levels at the Son La hydroelectric reservoir are causing the power plant to operate at a reduced capacity.

Some lakes are still close to their dead water levels: Thac Ba, Ban Ve, Dong Nai 3.

According to the assessment of the Ministry of Transport, the Northern region has entered the flood season, but the inflow into reservoirs is low, the water level in the reservoirs is rising slowly, and some hydropower plants are operating at a reduced capacity with low flow rates, water levels, and power output: Son La, Huoi Quang, Ban Chat, Thac Ba, Ban Ve, Thac Mo, and Dong Nai 3.

According to data updated on the morning of June 21st by the National Power System Dispatch Center (A0), the total electricity load on June 20th reached 856.6 million kWh. Of this, the North accounted for approximately 405.6 million kWh, the Central region approximately 79.5 million kWh, and the South approximately 370.9 million kWh.

The peak power capacity (Pmax) of the electricity system at 2 PM reached 41,407.1 MW. Specifically, the peak power in the South reached 18,417.8 MW, in the North reached 18,871.5 MW, and in the Central region reached 4,086.7 MW.

Electricity demand remained stable on June 20th (Photo: EVN).

On June 20, 2023, the total electricity generated from hydropower was approximately 197.1 million kWh (79.1 million kWh in the North); coal-fired thermal power generated 441.1 million kWh (273.1 million kWh in the North); gas turbines generated 104.1 million kWh; renewable energy generated over 119.7 million kWh; and oil-fired power plants did not need to be mobilized.

The Ministry of Industry and Trade and the Vietnam Electricity Group are continuing to direct relevant units to strengthen power sources and operate reservoirs flexibly in the context of difficulties faced by hydropower reservoirs; urging thermal power plants to prioritize handling incidents at generating units; ensuring the supply of coal and gas for power generation; actively supplementing renewable energy sources for the system; strengthening the safe operation of the Central-North transmission system; and at the same time promoting the dissemination of the Prime Minister's Directive on electricity saving...

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Source: https://vtc.vn/mien-bac-don-con-mua-vang-cac-ho-thuy-dien-con-can-nuoc-ar800955.html