"The first step to cutting your energy use is to know when and how you're using it," he explained.
Smart meters provide real-time displays of the energy being used in the home, allowing people to monitor their energy use.
In today's consultation response the government has announced details of a mass roll-out of the devices from 2014. The role out is anticipated to save a total of £7.3 billion in fuel bills over 20 years.
Mr Weatherall noted, however, that smart meters will not physically make a home more energy efficient; it is up to households to change their behaviour.
"The householder has to be engaged enough to take action based on the information they're given," he said.
"A national roll-out of meters is no easy undertaking, but providing homeowners are clear of the benefits and how to get the best out of them, it could potentially bring [about] big changes in our relationship to energy."
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