Lack of gas supply I presume. Even though we dont take much natural gas directly from Russia (though we still get about 20% of our diesel from them) and use LNG, the rest of the worlds demand for the same LNG has increased leading to potential shortages this winter.
And since we closed down a lot of our gas storage we cant build up enough of a buffer.
Which is really annoying as I read recently there is a cheap glut of gas at the moment but we cant take advantage of it due to a lack for storage