Washington ? The White House today will release a plan to remove some of the obstacles that prevent middle-class Americans from getting energy audits and making their homes more energy-efficient.

America’s nearly 130 million homes generate about 20 percent of the nation’s emissions of carbon dioxide, the principal heat-trapping gas, says a report being released today by the White House Council on Environmental Quality and Vice President Joe Biden’s Middle Class Task Force. McClatchy obtained an early copy.

Biden said the plan would add jobs that couldn’t be outsourced and make it easier for families to save money and reduce greenhouse gas emissions.

Installing more insulation and more energy-efficient doors, windows, lighting, water heaters, air conditioning and appliances can reduce energy use in a house by as much as 40 percent, meaning considerable monthly savings on utility bills.

The White House estimates weatherization also could lower greenhouse gas emissions by as much as 160 million metric tons annually by 2020, but one of the biggest hurdles to greater energy efficiency is cost.

Although energy efficiency retrofits save money on energy bills, they can cost as much as hundreds of thousands of dollars, depending on how much work is needed.

The new recommendations, which use existing federal funding, include ways to finance projects so homeowners will be more likely to undertake them. The report suggests three ways to make financing more attractive:

• Add the cost of retrofits to a homeowner’s property tax bill. If a house were sold, the buyer would continue to pay for the improvements through the tax bill. The costs would be spread out over enough time so that the monthly payments generally would be lower than the savings on utility bills.

• Make energy efficiency expenses part of the mortgage when a house is bought or refinanced. That program is already available, but the report said there have been “significant barriers” to widespread use. It suggests ways to overcome those barriers, such as making it easier to rate a house’s energy performance.

• Expand state revolving loan funds, which help consumers borrow money for weatherization at lower interest rates. These funds are available now in 16 states, and the report recommends expanding them to the other 34.