But the energy utility regulator warned many households could still struggle to pay bills. : The United Kingdom’s energy utility regulator has brought down its price cap to reflect recent decreases in wholesale prices, but warned the cap stays above pre-energy crisis levels and many households could still struggle to pay bills. The annual amount suppliers can charge an average household drops to $2,550 (GBP 2,074) for the third quarter, from $4,040 (GBP3,280) in April-June, the Office of Gas and Electricity Markets (Ofgem) said in a press release.