Russia has closed Nordstream1 for ten days routine manintenance. This happens every year, but, this year, due to the Ukraine situation, no-one is sure if Nordstream1 will come online again. There was a dispute regarding a turbine held in Canada due to sanctions, but I think this has been resolved. Literally, no-one knows what Russia will do next. For the next ten days at least Germany will have to rely on its stored gas supplies.