TalkTalk has signed a new deal with RWE npower which will see the firm become one of the UK's greenest broadband providers.
Following the new agreement, 100 per cent of the electricity used by the TalkTalk next-generation network will come from renewable sources.
Clive Dorsman, TalkTalk Group's Chief Technology Officer, said recent research indicated that consumers want the firm to help combat global warming.
"Switching to 100 per cent renewables complements our target to reduce our CO2 emissions by 25 per cent by 2021," he stated.
"We'll achieve this by using innovative technology in our next-generation network, and offices."
Last week, TalkTalk urged its broadband consumers to ensure they take all necessary IT security precautions over the busy Christmas period.