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Gilleran Energy Management

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Energy Efficiency ConsultingGreen Building ConsultingTitle 24 ComplianceHERS RatingsResidential Energy Efficiency

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About Gilleran Energy Management

Gilleran Energy Management (GEM) is a California-based energy and sustainability consulting firm that enhances building performance, improves operational efficiency, and supports long-term environmental goals. Recognized as one of the top sustainability consulting firms in California, GEM works with architects, developers, builders, and public agencies to ensure projects meet code requirements and function efficiently. Since 2002, GEM has provided expertise reflecting current best practices and long-term environmental goals, monitoring updates to Title 24, CALGreen, and other green building programs. They offer solutions for homeowners, commercial properties, apartments, and subdivisions, providing services from initial planning and design to project completion.

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