Adam Zeiderman, Sainsburys commercial manager, said: "There are lots of people who want to invest in renewable energy products but they dont know how or where to start. By setting up our Home Energy Centres, we believe were bringing green technology a step closer to everyone."
The three centres will be in the Camberley, Kidderminster and Leicester stores.
Figures from the Energy Saving Trust suggest that households could save £140 a year on heating costs by installing energy saving glazing and £235 by upgrading to a condensing boiler.
The Citizens Advice Bureau recommends that another way to get cheaper gas and electricity bills is by comparing and switching energy suppliers.
Click here to run an energy price comparison, and see if you could be paying less for your gas and electricity.