Subsidies for renewable heating systems in England, Scotland and Wales will be announced later by the government.
Money will be given to those who choose technologies such as wood chip burners instead of cheaper but more polluting fossil fuel heating systems.
Some £860m of government cash will be spent over four years on the scheme.
Most of the burning systems are likely to be located at schools, hospitals or community housing because of the size of the equipment involved.
But there will also be incentives for householders who put solar panels on their roofs to heat water or install heat pumps to get heat from the ground.
BBC environment analyst Roger Harrabin says that more carbon emissions come from heating for homes and industry than from generating electricity.
Ministers will therefore announce plans to get more heat from burning wood or crop waste which is carbon neutral, unlike using fossil fuels, he adds.
BBC News Article HERE