On Tuesday, the dispatch center of NPC Ukrenergo requested emergency power supply from the power system of Belarus in certain periods with a total volume of 650 MWh.
According to the company’s operational data published on the Ukrenergo website, from 10 a.m. to 1 p.m. the amount of electricity supplied was 450 MWh, from 1 p.m. to 2 p.m. and from 4 p.m. to 5 p.m. – a total of 200 MWh.
The network operator explained the request for emergency power supply by the need to maintain the reserves currently available and to ensure sustainable coverage of consumption peaks in the following periods.
“The demand for emergency electricity supply is not related to the lack of power reserves in the electrical system,” Ukrenergo said.
Previously, Belarus announced the provision of emergency power supply to the United Power System (IPS) of Ukraine on January 25 from 11:00 a.m. to 6:00 p.m. under a bilateral emergency power supply agreement. The maximum power was to be 150 MW.
At 04:22 on January 25, power unit No. 1 of the Khmelnytsky nuclear power plant was disconnected from the power grid due to the activation of the differential protection relay of the unit’s transformer, followed by the activation of nuclear power plant protection.
In addition, unit No. 4 was disconnected from the electrical system of the Zaporizhia nuclear power plant on January 25 to eliminate the gas leak in the cooling system of the turbogenerator for the duration of the work until 07:00 on January 27. According to NPC Ukrenergo, as of 12:00 on Tuesday, the unit’s capacity was reduced to zero.
Thus, on January 25, 12 of the 15 generators of the four nuclear power plants in operation in Ukraine were effectively in service: the 66th day of scheduled maintenance continued on generator no. 4 of the Rivne nuclear power plant.
Emergency supplies in 2021 to Ukraine from Slovakia amounted to 4.1 million kWh, from Belarus – 13.2 million kWh, to Belarus – 0.4 million kWh, to Poland – 9.4 million kWh.