Energy Reporting and Benchmarking

Under a provincial regulation for Energy and Water Reporting and Benchmarking (EWRB), large building owners are required to report their energy and water consumption and greenhouse gas (GHG) emissions to the Ministry of Energy, Northern Development and Mines (ENDM) on an annual basis.

This regulation applies to privately-owned buildings that are 50,000 square feet or larger, including commercial buildings, multi-unit residential buildings (with more than 10 units), and some industrial buildings (such as warehouses and industrial condominiums).

If you own a building that is 100,000 square feet or larger, you may need to report your building’s 2018 consumption to the Ministry of Energy by July 1, 2019.

The provincial government is phasing in this requirement to eventually include all buildings that are 50,000 square feet or larger.

Building Size and Type

Reporting Timeline

≥100,000 square feet

(including commercial, industrial, and multi-unit residential buildings)


By July 1, 2019

(consumption from 2018 calendar year)

≥50,000 square feet

(including commercial, industrial, and multi-unit residential buildings)


By July 1, 2020

(consumption from 2019 calendar year)

To learn more about whether the EWRB regulation applies to your building, and how and when to report your data, consult Ontario Regulation 20/17 and visit

Requesting your data from Hydro Ottawa

Under the EWRB regulation, local distribution companies like Hydro Ottawa are required to make aggregated electricity consumption information available to building owners upon request, so that they can report their data to the Ministry of Energy annually by July 1.

To assist building owners, Hydro Ottawa has created an electricity data request form. It may take up to four weeks to process requests.

To ensure building owners have sufficient time to gather and prepare their data for reporting prior to the July 1 deadline, we encourage building owners to request their data by February 28 every year. This will allow sufficient time to process the many requests received. Because of the large volume of requests we expect to receive, requests received after June 1 may not be processed by the July 1 deadline.

Hydro Ottawa may need to follow up with a building owner, in the event that any information in the request form is unclear or missing. In addition, Hydro Ottawa may require some time to validate third-party representatives who request information on behalf of a building owner.

If you are a building owner that has to comply with the Energy and Water Reporting and Benchmarking (EWRB) Regulation, fill out the form below to request your electricity consumption data from Hydro Ottawa.

Before you fill out the form, you will need:

  1. The account number for all accounts that are part of the building (as many as you can gather).
  2. The square footage information of the building.
  3. The EWRB number for the building. This number is provided by the Ministry of Energy, Northern Development and Mines.
  4. The Municipal Property Assessment Corporation (MPAC) code for the property (if available). You can visit the AboutMyProperty website to access this code.
  5. The MPAC roll number (if available). This number is stated in the property tax statement.
If you have any questions before filling out and submitting the form, please send your inquiry to

Data Request Form


This section is about the person/company that owns the property for which energy consumption data is requested.


This section is about the person requesting energy consumption data, if different than the property owner. This is the person Hydro Ottawa will contact if there is an issue.


This section is about the property/building for which energy consumption data is requested.
 I hereby confirm that the information provided in this form is accurate and complete. I am the legal owner of/I have obtained lawful authority from the legal owner of the large building(s) specified in this form. I agree to notify Hydro Ottawa immediately in writing if any of the information I provided here changes.
 I understand and acknowledge that Hydro Ottawa provides the requested data to me as is available through the existing metering infrastructure and based on the information that I have provided. I agree not to hold Hydro Ottawa and its directors, officers, employees, contractors, agents and other representatives liable under any circumstances for any errors, omissions, or delays in respect of the requested data, including any liability, loss or damages, which may arise in contract, tort or otherwise.
 I acknowledge that all information submitted in this process may be used by Hydro Ottawa in support of complying with its statutory obligations, including but not limited to the Electricity Act, 1998, and the Ontario Energy Board Act, 1998, all as amended and the regulations thereto, and all applicable Ontario Energy Board codes and rules, as well as its electricity distribution license.
Hydro Ottawa respects your privacy. Any personal information collected will be used by Hydro Ottawa in order to provide you with customer service and all in accordance with the terms of our Privacy Policy.
Please confirm in order to continue.
 I agree to the terms and conditions