The Finish nuclear power plant, Olkiluoto, is starting to compete with the Swedish nuclear power plant, Forsmark for being the leading cause of major (loss of generation) disturbances in the Nordic power system.
Yesterday, November 17th, at 15:25:51, Olkiluoto 3 had another turbine failure, tripping all 1600 MW of generation and causing the Nordic system frequency to drop to 49.59 Hz. The failure is expected to last several days.
- On September 3rd, Olkiluoto 3 experienced a fault that caused it to drop 640 MW, leading the Nordic frequency to fall to 49.77 Hz.
- On June 10th, Forsmark Block 3 experienced a reactor trip of 1172 MW, causing the Nordic system frequency to drop to 49.61 Hz.
- On June 3rd, 2024, Olkiluoto 3, with 1600 MW, suddenly tripped due to a turbine malfunction. The Nordic system frequency dropped to 49.58 Hz.
- On May 13, 2024, the Forsmark Block 1 nuclear power plant in Sweden, which has a capacity of 1 GW, tripped due to a grid failure.
- On the 25th of November 2023 the Swedish Forsmark reactor experienced a fault, tripping block 3, with a capacity of 1.2 GW. Resulting in a similar frequency drop reaching 49.6 Hz.
- On 26th April 2023, it was the two blocks (1 and 2) of the Forsmark plant that were tripped, resulting in a loss of production of 1.0 GW and 1.1 GW, respectively.
Hybrid Greentech - Energy Storage Intelligence was supporting the Nordic power system during this fault with its portfolio of grid-connected battery systems and electric vehicles.