JOIN USChancellor of the Exchequer Darling also pledged that Britain would seek to secure a "global deal" at the "historic" UN climate talks that are currently taking place in Copenhagen.
Darling, presenting his taxation and spending plans in an eagerly-awaited budget report, unveiled a "new-for-old" scheme to replace ageing household boilers with more efficient models.
The boiler scheme, which aims to help 125,000 households by offering them USD 648 towards a new boiler, is similar to the government's successful vehicle scrappage scheme.
"We must all become more energy-efficient and cut emissions, as well as household bills," Darling told parliament today.
Britons with wind turbines or solar panels who fed power back into the national grid would receive an average of 900 pounds tax-free per year from April, he added.
And 200 million pounds would be offered to a 75,000 households to make their homes energy efficient via measures such as roof insulation.
The chancellor also vowed more investment in low-carbon sectors like wind power, while the government will double its commitment to carbon capture and storage (CCS) schemes to help cut greenhouse gas emissions.