The Public Attitudes Tracker shows that up to 68 per cent of those surveyed trust energy suppliers to provide them with a bill that accurately reflects their energy use, up from 63 per cent in June.
The tracker survey also revealed that more than half (51 per cent) trust energy providers to inform them of the best tariff and give them a fair deal.
A third (34 per cent) of the 2,103 households questioned in September however, remain concerned about paying their bills. Though the number is the lowest since the survey began in 2012, it remains comparable to the level reported in June.
The percentage of those planning to switch next year remains stable at 5 per cent with 27 per cent of people saying they may or may not switch energy supplier in the next 12 months. This remains at the level reported in June.
UK consumer group Which? executive director Richard Lloyd said: “While trust may have marginally improved, energy remains one of the least trusted industries.
“With three-quarters of consumers worried about their energy bills and only a quarter trusting the industry to act in their best interest, it’s clear big reforms are needed to restore confidence and guarantee fairer prices for consumers.”