Strike action that began Tuesday morning at multiple French power stations -- nuclear, gas-fired and coal-fired power -- cut availability by 3.58 GW, operator EDF said.
Only 500 MW of the 915-MW St Laurent-1 nuclear reactor's capacity remained available during the strike, which was expected to end at 9 pm local time (2000 GMT) Tuesday.
Capacity at the 905-MW Chinon-1 reactor was expected to decline to 220 MW for the duration of the strike, EDF said.
In an afternoon update, the power plant operator said its 1,330-MW Paluel-1 reactor's capacity was expected to fall to 395 MW, with its 585-MW Bouchain-7 gas-fired unit down to 200 MW due to the strike.
Power production units 4 and 5 at Cordemais coal-fired station, each with capacity of 580 MW, dropped to zero Tuesday due to the strike, EDF said.
Grid operator RTE said: "Difficulties with coal supply [limited] the production of the coal plants of Cordemais 4 and 5 with a constrained management of the stock of coal from Wednesday".
Production availability at EDF's 580-MW Havre-4 coal-powered unit was expected to remain at zero until Wednesday morning due to the strike, which led to the shutdown of the unit on October 26, operator data showed.
According to RTE, nuclear power generation stood at 43.5 GW Tuesday afternoon, down 1 GW from Monday, while coal and gas-fired generation fell 614 MW and 6.4 GW, respectively, from Monday's output of 1.5 GW and 7.1 GW.
