District Energy Space

District Energy Space is IDEA's annual publication featuring a detailed compilation of the number of buildings and their area in square feet that have been committed or recommitted to district energy service by IDEA member systems during the previous calendar year.

In conjunction with the publication of this industry-respected annual report, IDEA gives special recognition to the District Energy Systems contributing the highest growth in North America and Beyond North America with annual District Energy Space awards.

District Energy Space, which has been an annual tradition for IDEA since 1990, is the result of voluntary reporting by its member system operators who share information about both buildings newly committed and those that have extended a contract with a duration of 10 years or more.

Read District Energy Space 2025!

The International District Energy Association (IDEA) is pleased to release District Energy Space 2025.

This year’s results, which bring the total recorded square footage to over 3 billion gsf, build upon a more than decade-long trend of increasing adoption of district energy to reliably and efficiently deliver heating and cooling to buildings both here in the U.S. and around the globe.

Read the Report

Meet the 2025 Winners

We have revealed the 2025 District Energy Space Gold, Silver and Bronze winners for Most Total Buildings Added and Most Square Footage added in North America and Beyond North America categories - thank you to all of our 2025 participants, and congratulations again to the winners!

North America - Number of Buildings Committed

Gold: Vicinity Boston/Cambridge

Silver: CenTrio Seattle

Bronze: Cordia Minneapolis

North America - Total Building Area Committed

Gold: Vicinity Boston/Cambridge

Silver: CenTrio Seattle

Bronze: Cordia Minneapolis

Beyond North America - Number of Buildings Committed

Gold: Empower

Silver: EMICOOL

Beyond North America - Total Building Area Committed

Gold: Empower

Silver: EMICOOL

Past Publications

Chart the growth of district energy through the years by reading previous editions of District Energy Space. If you have experienced growth in prior years that you haven't reported, please contact us so we can include it in our aggregate growth total.

District Energy Space 2024

District Energy Space 2023

District Energy Space 2022

District Energy Space 2021

District Energy Space 2020

District Energy Space 2019

District Energy Space 2018

District Energy Space 2017

District Energy Space 2016

District Energy Space 2015

District Energy Space 2014

District Energy Space 2013

District Energy Space 2012

District Energy Space 2011

District Energy Space 2010