PORTLAND — The Portland International Jetport is one of four airports to win a prestigious environmental award.

Airports Council International-North America gave the jetport its award in the environmental management category. Winners in other categories were Northeast Florida Regional Airport, Chicago O’Hare International Airport and JFK International Airport in New York.

The new terminal that opened this year in Portland was designed to be friendly to the environment with savings of $150,000 a year in fuel costs thanks to installation of the state’s largest geothermal system.

The system features 120 wells, each 500 feet deep. Officials say it will produce carbon dioxide and nitrous oxide emission reductions that are the equivalent of taking 180 cars off the road each year.