Such purchases could include power-saving light bulbs, insulation for the walls of attics and roofs, as well as water butts.
"We've found that people are prepared to spend money to save money. There's been a lot of advertising and media attention to push the energy saving message and I think people are taking notice," Mr Berman states.
Investment in green products can be an alternative, or an effective addition, to other techniques such as a switch of energy supplier.
The expert's comments came after Bosch's Driving Green Britain survey found 63 per cent of Britons now think of the environment as a priority when buying a new car.
Posted by Jim Tidy
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