Community energy groups, charities, social landlords and councils are invited to bid for funding to help vulnerable consumers reduce their energy costs.
DECC is providing a further £1 million through the Big Energy Saving Network, which awarded nearly 160 projects across Britain last year.
Each grant will be worth up to £5,000 and will be payable to deliver energy saving advice projects to those consumers having difficulty accessing information or understanding how to save money on their bills.
Projects could include providing advice on switching tariffs, different bill payment methods and various Government schemes that help lower energy bills.
Energy Secretary Ed Davey said: “We are doing everything possible to help people cut their energy bills. But there are some things they can do to help themselves, like making sure they’re signed up to a competitive energy deal and if they’re not, switching.
“This new funding means vital energy saving guidance can be targeted where it is needed most.”
Bids are accepted until August 8th this year.