Birmingham Airport (BHX) is one of the UK’s busiest airports, catering for over 13 million passengers per year. Energy is one of their largest controllable costs and the airport wanted to bring about a step change in the way that energy was managed, with a particular focus on behaviour change. Work to embed energy efficient behaviours in the culture of the business has been highly successful, contributing to a reduction of £785k in the 2015/16 utilities budget. In 2016/17, the behaviour change campaign alone delivered an energy saving of circa 66 MWh, with a further 170 MWh in the pipeline.