The 10 per cent rise in energy bills has taken effect due to changes to the Ofgem price cap.
Joe McCormack, from West Dunbartonshire Citizens Advice Bureau, said this increase spells a "a cold, dark and miserable winter" for many in West Dunbartonshire.
He said: "Just as we‘re starting to feel the cold, energy prices are increasing again.
"It’s a harsh reality for many people in West Dunbartonshire, and it comes at a time when the changes to Winter Fuel Payment start to take effect, meaning thousands will miss out on that crucial help.
"The result is that many homes face a cold, dark and miserable winter and the UK and Scottish governments both need to look again at the support that is available to low-income households.
"We agree with the calls that energy companies should play their part by offering a social tariff for those on low incomes.
"Meanwhile the WDCAB is ready to help anyone who is worried about how to keep their home warm this winter.
"Throughout the winter months, we will be encouraging people to look again at their benefit entitlement and other financial help which may be available.
"There is already an increased focus on Pension Credit, but it shouldn’t end there.
"We will help people look at any financial assistance that may be available, in line with their circumstances. Our advice is free, confidential and impartial.”
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