THE average domestic gas bill has risen by more than a third over

the past year, a report out today says. Soaring fuel costs have prompted an industry-wide downturn in

customer satisfaction levels, according to a survey by JD Power & Associates. The average annual domestic gas bill has increased by 33.6% since

last year, to hit £510.60. For electricity, a 13.7% rise over the same period has pushed the average bill up to £453.24. The survey ranked EDF Energy as the gas and electricity supplier

with the lowest customer satisfaction scores. Rivals Npower and Scottish and Southern Energy were named the best electricity and gas suppliers respectively. The survey showed that customers were generally aware of energy

price hikes, but often didn't understand what that meant for their own bills. The 2006 UK electricity and gas customer study was based on 2,605

interviews with domestic electricity users and 2,008 interviews with domestic gas customers.