This holiday season, Operation Fuel is asking people to give the gift of warmth by making a donation to the nonprofit energy assistance program. More than 300,000 Connecticut households won’t be able to afford their energy bills this winter, the agency said in a press release.

Donations for Operation Fuel may be made at operationfuel.org or mailed to Operation Fuel, 75 Charter Oak Ave., Suite 2-240, Hartford, CT 06106.

Donations also can be made through Operation Fuel’s Add-a-Dollar program, when paying monthly utility bills.

Operation Fuel’s statewide network of fuel banks began taking applications for the winter program on Dec. 1. Anyone who needs emergency energy assistance should call 2-1-1.