International District Energy Association (IDEA)

The International District Energy Association (IDEA) works actively to foster the success of our members as leaders in providing reliable, economical, efficient, and environmentally sound district heating, district cooling, and combined heat and power.

Founded in 1909 as the National District Heating Association, IDEA continues to inform, connect, and advance the district energy industry around the globe. Today, the association has a membership of over 2,500 industry professionals representing more than 30 countries from around the globe.