EU ministers responsible for energy have found a lowest common denominator as they seek a deal on coping with high energy prices. “There is general agreement among the ministers that we will have to buy gas together from 2023,” said Czech Industry Minister Jozef Síkela, who chaired the meeting in Prague on Wednesday. In addition, he said, solidarity must be shown and more energy must be saved. “We also agreed that we need to change the current price index to make it more resistant to speculation and price spikes,” Síkela said, referring to the price index of the TTF gas trading hub. The minist…