By Ben Aris in Berlin Winter is over, as the EU gas tanks switch from withdrawals to filling mode again in preparation for next winter. Injection into the gas tanks started on April 1, a week earlier than in 2023 and started at an all-time high record level of 59.3% full. (chart) Russian gas pipe imports and gas for power into the EU is on a downward trend, falling by 9% in the first quarter this year vs the first quarter of last year, but given the warm weather as heatwaves are already affecting all of Europe, storage this year should fill fast. Thanks to the low demand and high storage rates…