ITV Wales speaks to shoppers in Pontypridd to find out if the cost of fuel is already too high.
It comes as Consumer Focus Wales says more than 70 per cent of people in Wales are worried about the price of energy rising further.
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The new MP for Aberavon has urged action to avoid Labour's leadership contest becoming a narrow choice between just two candidates
Families are cutting back on food or on heating their homes because children's benefits are not in line with the cost of living.
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