Zero Energy Certification 1.0 Handbook
April 2025
  • April 2025
Table of Contents
Zero Energy Certification 1.0 Handbook
  • April 2025
    • Zero Energy Certification 1.0 Handbook — April 2025
GrabGrab
GrabGrab
  • April 2025
  • Zero Energy 1.0 Handbook
    • Overview
    • Clarifications
      • Energy Budget Clarifications
      • Energy Use Clarifications
      • Performance Period Clarifications
      • Renewable Energy Clarifications
      • Scale Jumping
    • Exceptions
    • Documentation Requirements
    • Case Studies
    • Resources
  • ILFI Program Glossary
    • A-G Terms
    • H-P Terms
    • Q-Z Terms
  • Summary of Changes
    • April 2025 Updates
      • Changes to Clarifications (Q1 2025)
    • October 2024 Updates
      • Changes to Energy Budget, Energy Use, and Renewable Energy (Q3 24)
      • Changes to Documentation Requirements (Q3 24)
    • May 2024 Updates
      • Changes Throughout (Q1 24)
      • Changes to Energy Budget, Energy Use, and Renewable Energy (Q1 24)
      • Changes to Scale Jumping (Q1 24)
      • Changes to the Exceptions (Q1 24)
      • Changes to the Resources (Q1 24)
      • Changes to the Glossary (Q1 24)
    • July 2023 Updates
      • Changes Throughout (Q2 23)
      • Changes to Documentation Requirements (Q2 23)
    • Previous versions of the Handbook
Download as PDF

April 2025

The April 7, 2025 update of the Zero Energy Handbook that follows is the current version of the handbook. Previous iterations of the Zero Energy 1.0 Handbook are available to download here.

Zero Energy 1.0 Handbook
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