Electricite de France SA started its 910-megawatt Gravelines-1 nuclear power plant on July 7 after an unplanned halt on June 4, according to data from French grid operator Reseau de Transport d’Electricite.

EDF halted its 910-megawatt Gravelines-2 nuclear power reactor in France yesterday for three days of planned maintenance, according to RTE data.

Europe’s biggest power generator presently has 19 reactors offline, bringing France’s available nuclear capacity to 67 percent, according to calculations based on the latest RTE data, compared with 82 percent on July 1 last year.

EDF’s 58 nuclear plants generate about 75 percent of the country’s power.

The following table lists EDF’s atomic units that are out of service, their generating capacity in megawatts, when they stopped and the expected return date, if known, according to RTE. Two asterisks highlight an unplanned halt.

UNIT NAME                 MW         OUT        RETURN
Gravelines-2              910      July 8        July 11
Nogent-1                1,310      June 22        --
Blayais-4                 910      June 20        --
St-Laurent-1              915      June 16        --
Cattenom-4              1,300    **May 29         --
Cruas-1                   915      May 26         --
Gravelines-5              910      May 19         --
Paluel-3                1,330      May 19         --
Dampierre-4               890      May 5          --
Chinon B-4                905      May 5         July 15
Gravelines-3              910      April 28       --
Tricastin-3               915      April 28       --
Saint Alban-2           1,335      April 27      July 9
Penly-2                 1,330      April 5        --
Golfech-1               1,310      March 24      July 12
Cruas-4                   915      March 24       --
Blayais-1                 910      March 2        --
Civaux-2                1,495      Feb. 18        --
Chooz B-2               1,500      Feb. 16        --

Source: RTE

To contact the reporter on this story: Rachel Morison in London at rmorison@bloomberg.net

To contact the editor responsible for this story: Lars Paulsson at lpaulsson@bloomberg.net