Smart Energy GB, the campaign to support the roll-out of new smart meter technology replacing old analogue meters, took on PR firm The Academy who conceived and ran the project, which gained national media coverage this week.
Director of policy Claire Maugham, herself a classicly trained violinist, said she "couldn't be happier" with The Academy's work.
The organisation also previously worked with Third City.
The latest part of this project has seen the Royal Philharmonic Orchestra release a three-minute requiem composed by Tarn at the famous Abbey Road studios, which were used by The Beatles among other legendary artists.
The track, featuring the electric meter violins, cellos made from empty gas meters and a timpani drum constructed from 18 gas meters welded together, is being released as a free track through Spotify as well as the Smart Energy GB website and on social media.
Sacha Deshmukh, chief executive of Smart Energy GB, said: "It’s fantastic to see and hear these incredible instruments made from old analogue meters. This project has brought together the skills of some of the best instrument makers in the country with our finest musicians to record this beautiful and unusual piece of music, which will mark a momentous transformation, taking place in every home in the country."
More than 50 million smart meters will be installed by energy suppliers in 26 million homes across Great Britain between now and 2020.