A social enterprise is to operate the longest route of the Bristol area Metrobus scheme.
Bristol Community Transport will reinvest profits made on the m1 service into transport improvements and community projects.
The company will spend £7m on a fleet of 21 biogas buses in a move which will create up to 60 new jobs.
It has been hailed an “innovative operating model” by partners First West of England.
The £230m rapid transit scheme involves three routes: