Electricity consumption increased, coal-fired thermal power plants ran at maximum

Northern electricity consumption increased by more than 31 million kWh/day

According to the Electricity Regulatory Authority (Ministry of Industry and Trade), in the week from April 22 to 28, due to the hot weather across all three regions of the country, electricity consumption increased at a high level with an average daily output of 946.6 million kWh, about 65.4 million kWh higher than the previous week.

Electricity consumption increases nationwide due to hot weather

The average load in the North increased by more than 31.7 million kWh/day compared to the previous week. During the week, many new records for maximum capacity and daily electricity consumption were set. Specifically, at 1:30 p.m. on April 27, the national maximum capacity reached 47,670 MW; the national electricity consumption on April 26 reached 993.9 million kWh.

In the North, since April 26, widespread heat has caused electricity consumption to increase sharply. On April 27, electricity consumption in the North reached its highest output of 457.4 million kWh, an increase of 43 million kWh compared to the highest day last week.

Faced with the increasing demand for electricity in the North, to ensure electricity supply and save hydropower, the National Power System Control Center (A0) had to start up Unit 2 of O Mon Thermal Power Plant on April 27; mobilize the plants: Phu My 4, Phu My 21 to run on LNG; coordinate with the Northern Power System Control Center (A1), the Northern Power Corporation (NPC) to request small hydropower plants to generate power to support peak load.

A0 also requires hydropower reservoirs to retain water for a maximum of less than 2 days during low load periods and focus on generating power during peak system periods; update the Nho Quan - Nghi Son transmission limit to 2,450 MW, 100 MW higher than last week.

Also according to the Electricity Regulatory Authority, since the beginning of the year, the national load has increased by about 11.2% compared to the same period in 2023. Of which, the North increased by 11.3%, the Central region increased by 8.5%, the South increased by 11.7%, but the electricity supply last week continued to be well ensured.

Maintain stable coal-fired thermal power, ensure electricity supply

Sharing with Thanh Nien , a leader of the Electricity Regulatory Authority said that to ensure electricity supply next week, hydropower plants are given priority to reserve maximum water resources for power generation during peak times. Hydropower reservoirs are operated to maintain high water levels in the North (at least maintaining a calculated water column of 1.7) to limit capacity reduction due to pressure column and increase available capacity for the Northern power system; accepting the risk of overflow in case of sudden floods.

For coal-fired thermal power plants, the plants must adhere to the equipment repair plan; do not repair the Northern units during the peak of the hot season from April to July. In case of abnormal hydrological developments in a bad direction, it is allowed to postpone the repair plans of coal-fired thermal power units to increase the availability of the power system; urgently fix and put back into operation the units with problems, unit S1 of Mong Duong 2 Thermal Power Plant; unit S2 of Hai Duong Thermal Power Plant, etc.

In addition, power plants with the ability to run on oil ensure fuel sources (FO/DO oil) to be ready to mobilize to meet peak loads as well as compensate for power output in case of overlapping incidents of large generators on the system. Power corporations accurately forecast peak load capacity, clearly announce the ability to implement load adjustment (DR) and the ability to mobilize diesel sources borrowed from customers so that A0 can update calculations and make operational plans.

According to the Electricity Regulatory Authority, during the peak months of the dry season (April - July), the total output of coal-fired thermal power is expected to account for 52 - 60% of the total output of the national power system. Accordingly, investors of power plants (especially coal-fired thermal power plants in the North) must continue to ensure the availability and reliability of generators and the entire plant, and prevent incidents during the peak months of the dry season; and prepare enough fuel for power generation according to the mobilization needs of the system.

"This is a very important task, decisive to the ability to ensure safe electricity supply during the peak dry season months," said the leader of the Electricity Regulatory Authority.

In addition, the Electricity Regulatory Authority requires power generation units to proactively report and provide feasible and accurate information on the operation of generators, causes of incidents, repair time, coal inventory, expected progress and coal import plan to send to A0; absolutely not allowing the situation where the plant is ready to generate electricity but lacks coal fuel and cannot generate enough capacity.

In addition, Vietnam Electricity Group cooperates with localities to promote electricity saving propaganda, persistently implement the load regulation program to meet the peak capacity of the power system in all three regions of the North, Central and South.

Source link: https://thanhnien.vn/tieu-thu-dien-tang-cao-nhiet-dien-than-chay-toi-da-185240430105425195.htm