Orsted is to supply Bristol Airport in the UK with 100% renewable energy under a new three-year deal.
The electricity will be used to power the terminal and other buildings, as well as aircraft stands that are equipped with fixed electrical ground power.
Fixed electrical ground power stations reduce the need for diesel powered engines for pre-flight services, the airport said.
The announcement follows the recent publication of a roadmap setting out how the airport will become carbon neutral by 2025 for emissions within its direct control.
Bristol Airport planning and sustainability director Simon Earles said: “From next month our terminal and other facilities will be powered by renewable energy – a significant step on our journey to carbon neutrality.
“There is more to do, but this is a clear statement of our intent to reduce our direct emissions.”
Orsted UK sales managing director Ashley Phillips said: “It’s exciting that an international airport like Bristol is placing such strong emphasis on sustainability.
“At Orsted, we want to drive the transition to low-carbon energy systems in the UK, and support organisations like Bristol Airport that share this ambition of creating a greener energy future.”