Those numbers ARE ABSOLUTELY WORHTLESS. "capacity filled in percent" is a WORTHLESS METRIC that tells the lay reader NOTHING at all. Austria might have a max capacity of 60% of their yearly demand, Germany might have 200% (made up numbers for illustration). In that case with full capacity, Austria could survive 4 months, while Germany could go two years. Yes, this disregards cross-country sharing, but even averaged a…
What is meant by "without new gas"? Without LNG shipments? Without local/European produced NG? Or just without Russian NG imports? Without any imports?
What does it mean "to go"? To consume at some historical rate? Consumption varies with NG prices - recently consumption has been curtailed as a result of high NG prices. At a macro scale, NG consumption has been falling. Europe-wide annual consumption is about 20% less than it was 10 years ago.
And an unqualified time answer - say one month, for example - would be meaningless as the rate of gas consumption is highly seasonal at various scales (daily, weekly, annually). A winter month is not equal to a summer month for example.