Guide to energy and water reporting
This guide gives you detailed information on how to report your building’s energy and water usage for the Energy and Water Reporting and Benchmarking (EWRB) initiative. The reporting deadline to the Ministry of Energy and Mines is July 1 of each year.
If you have a question, contact EWRB Support at
Overview
Energy and water usage can represent some of the largest operating costs in your building. Ontario's Energy and Water Reporting and Benchmarking (EWRB) initiative can help building owners and operators:
- access accurate and reliable information about building performance
- save money by tracking usage
- identify energy and water efficiency opportunities
- compare your energy and water usage to similar buildings
Updated: May 14, 2025
Published: May 30, 2019