The Building Energy Hub has the answers you need to advance energy efficiency in your building.
The Hub is an objective resource for building professionals of all levels of familiarity with energy efficiency. 
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The Hub delivers practical, actionable building energy efficiency resources that help professionals achieve measurable improvements and navigate complex requirements with confidence
Practical Solutions,
Proven Results
The Hub gives you straightforward tools to improve building performance today. Our resources help you navigate complex requirements, identify cost-effective improvements, and implement solutions that deliver measurable returns. By focusing on practical approaches, you'll reduce operating costs while meeting compliance standards.
Expert Resources, Measurable Outcomes
Since 2009, The Building Energy Hub has been delivering reliable, actionable resources for building professionals across Illinois. Our experienced team provides clear guidance on energy codes, ROI calculators, and step-by-step implementation guides. We ensure every resource is developed with precision and expertise, from technical standards to implementation support.
Community-Focused Impact
As a project of Illinois Green Alliance, in collaboration with key partners,, The Hub is committed to increasing access to building performance resources in underserved communities. Through partnerships with local organizations, we help bring practical solutions to those who need them most. Our education and training programs also empower professionals with the skills needed to improve building performance across Illinois.
Want to share your expertise with buildings that need help?
Illinois Green can connect you with opportunities to share energy efficiency best practices with buildings that need it most.
Hub programs and resources are developed in partnership with Elevate, ComEd, Illinois Finance Authority/Illinois Climate Bank, City of Chicago, and the International Code Council (ICC). The project is supported by the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) under the Building Technologies Office and ComEd.