The study also revealed that 64 per cent of those that had recorded a saving had reduced their annual energy bill by up to £75.
The report also stated that nine out of ten smart meter customers are now taking “simple steps” to reduce their energy usage.
Stuart Rolland, managing director of British Gas smart metering, said: “The results show that by seeing how energy is used through the home, you can make small changes that save you money.
“Whether it’s discovering how energy efficient the fridge is, or the cost of using the tumble dryer, we’re excited that the smart meter roll-out will make it easy for consumers to improve their energy efficiency.”
Smart meters have also encouraged 40 per cent of households to tackle wider energy efficiency issues in their home, with most of those households installing additional insulation.