Here is a look at the new npower advert featuring Wallace and Gromit, which has been created by Beattie McGuiness Bungay alongside animation house Aardman.
This is the second in the series of npower campaigns to feature the pair as the company looks to promote energy efficiency.
The 30-second TV ad wk during the Home Show on Channel 4 on Thursday and sees the duo attempt to insulate their loft using sheep.
McCann Erickson is handling the PR for npower on the campaign.
Kevin Peake, marketing director for npower, said: "We're hoping their [Wallace & Gromit's] positive appraoch to energy efficiency will help people see how simple it is to make small changes and a big difference to their energy bills."
Below is a special video showing some of the behind the scenes production on the new ad.