FRANKFURT, Aug 30 (Reuters) - The Nord Stream gas pipeline, which carries Russian gas to Germany under the Baltic Sea, will undergo planned maintenance from Sept. 11 to Sept. 22, the Switzerland-based operating consortium said on its website on Wednesday.
Annual maintenance, usually carried out in the low demand summer season, requires a temporary shutdown of both lines at once, said the consortium, in which Russia's Gazprom has a 51 percent stake.
"The timing for the maintenance activities has been agreed and coordinated with Nord Stream's upstream and downstream partners well in advance," it said.
Nord Stream 1 has annual capacity of 55 billion cubic metres of gas, but actual shipped volumes are determined by demand and the situation at the connecting onshore pipelines, NEL and OPAL. (Reporting by Vera Eckert; Editing by David Goodman)