Energy suppliers seek gas storage capacity incentive Charles Hendry, former energy minister, who approved a number of storage schemes during his ministerial career, has also joined the calls for an increase in reserve capacity but acknowledged that at present the consumer would have to foot the investment bill. John Hayes, energy minister, insisted yesterday there was no supply crisis. He said: "We get our supplies from a diverse range of sources and the market is proving to be highly responsive to the UK's needs." Demand is currently running 32pc above normal seasonal while tanker deliveries of liquefied natural gas, attracted to Britain by the surge in wholesale prices, are providing a modest boost to reserves. The biggest gas tanker in the world, more than a fifth of a mile long, will dock at Milford Haven in Wales today, with supplies of gas to fuel the urgent need for power at a time when the UK is in the grip of a big freeze.