LEED Energy Credits are certification points awarded for demonstrated energy efficiency improvements that reduce annual energy consumption below ASHRAE 90.1 baseline standards, with point values scaling from 1 to 18 points depending on consumption reduction percentage. These credits are central to the LEED Energy and Atmosphere category.
ASHRAE 90.1 Baseline
LEED Energy Credit calculations begin with ASHRAE 90.1-2007 or 2010 baseline energy models that establish minimum code-compliant building performance. Each percentage of consumption reduction below baseline (ranging from 1 to 50 percent) corresponds to progressively higher credit values. Buildings reducing consumption 20 percent below baseline earn 5 points; 50 percent reductions earn 18 points.
HVAC Strategies for Credits
Common HVAC improvements include variable frequency drives (VFDs) on pumps and fans, thermal energy storage, high-efficiency chillers exceeding ASHRAE standards, demand-controlled ventilation (DCV), and optimized controls. Proper commissioning balancing and documentation are required to verify claimed energy savings.
Documentation and Verification
LEED submittals require energy modeling documentation, equipment specifications, and post-occupancy performance data verifying claimed savings. Building commissioning reports must confirm system operation matches design assumptions used in energy calculations.