The cost to heat your home is rising and with this week's cold snap, you really may feel it on your next bill.

According to the Department of Energy, during the winter months, almost 40 percent of your energy bill will go toward keeping your home warm. That cost has risen steadily over the past 5 years.

Progress Energy will be raising its rate December 1 and customers may see an average increase of $10 on their bill. And with the increase in rates, energy companies are worried they'll see more customers this year not paying their bill

Big utilities like Progress Energy are asking folks to be more generous in donating to fuel assistance funds that'll help those who are less fortunate.

And with the economy in turmoil, they know it's going to be tougher on those who donate as well as those who need the help.

Even those who aren't eligible for fuel assistance are looking for ways to trim their wintertime energy bills.

"As the days get colder it's going to be harder for people to pay their energy bills," said Drew Elliot, with Progress Energy.

The Federal Energy Administration predicts the cost of both electricity and natural gas will rise this winter, with the average southern home paying an additional $101 this heating season. The average natural gas user will pay $31 more this winter. That's why fuel assistance is important.

"We help out anyone in the winter months when it gets colder who need a hand," said Elliott.

Progress Energy helps those in need by collecting donations for its Energy Neighbor Fund. Progress Energy then gives that money to Wake County Human Services to administer as the agency sees fit. And because of the economy this year, they expect an increased need.

Duke Energy also raised its rates this fall, but PSNC Energy's rates actually lowered beginning Nov. 1.