Two and a half years after Russia's full-scale invasion of Ukraine began, Europe's energy woes still aren't resolved. Current prices are much lower than the all-time high of €300 per megawatt-hour in 2022 but are still double what they were before Putin's invasion. Our senior energy reporter Stephen Stapczynski joins to explain why there are concerns about supplies of gas in the coming months, even though the continent has filled stockpiles to 90 per cent capacity.