Green Button is a data standard that provides energy customers with more choice in how you access your electricity and natural gas data.  With a simple and secure process, customers will be able to securely download or connect (share) their energy usage data in an industry-standard format with registered third parties.

Ontario is providing families and businesses more control over their electricity and natural gas bills with the introduction of the new Green Button Standard that will allow access to their data with the goal of better tracking energy use, reducing bills, and saving money.

On November 1, 2021, the Ontario Ministry of Energy announced that electric and natural gas utilities across the province must provide their customers with access to Green Button data no later than November 1, 2023. Read the full news release.

Green Button provides a unified, industry-standard data format, which can be used to analyze and manage a consumer’s energy usage. The introduction of Green Button industry-standard data across Ontario utilities will provide the foundation for the development of new tools and applications for customers to analyze and monitor their energy usage to reduce costs.

Below are just a few of the benefits of Green Button data:

• Improve energy efficiency – Consumers can use Green Button data to identify and compare their energy usage in order to improve energy efficiency within their home or business.
• Reduce energy costs – By learning their usage patterns and habits, consumers can make informed choices about how much energy they use and when they use it. When consumers use energy during off-peak hours (also known as peak-shaving) and invest in energy-efficient appliances, it saves money and can help reduce strain on the grid.
• Energy conservation – consumers can use their data to conserve energy to help reduce their carbon footprint and protect the environment.
• Secure access – with Green Button standards, consumers can rest assured that their data and private information is secure. Utilities must go through a strict testing and certification process to become Green Button standard-compliant.
  Green button tools to understand large volumes of energy data will help pave the way for future innovations in the energy sector.

Green Button Data for Residential Customers:
Many customers are already viewing their energy data through a customer portal on their utility website. With Green Button, third party apps can analyze the data and provide insights to help customers make sense of their energy use and make informed decisions to help reduce costs.

With CMD, data is shared on an ongoing basis. This allows third parties to provide insights and alerts on usage trends and changes.

Green Button Data for Businesses:
For customers with a large number of properties across multiple utilities, Green Button provides a standardized format so that the data they receive from each utility is in a similar format. Green Button third parties in the commercial sector are able to analyze large volumes of data across multiple facilities to provide energy management advice.

With CMD, data is shared on an ongoing basis. This allows third parties to provide insights and alerts on usage trends and changes including monitoring the impact of energy efficiency measures taken.

Green Button will also make it easier for facilities to complete mandatory government reporting requirements.

Ontario Energy Board – Green Button
Ontario Newsroom
Green Button Alliance (GBA)

The Green Button Download My Data (DMD) standard allows consumers to select and download their electricity usage data from their energy provider’s website in an industry-standard XML format; consistent across all energy-provider websites.

You can download your Green Button data using the steps provided below:

From the Halton Hills Hydro Website:

• Go directly to the Green Button Portal
• Enter AccountOnline User Name and Password, if applicable or enter your Account Number and Meter Number (electric) to validate that you are the account owner (Note: You will need to have a recent bill handy)
• Select the Download My Data tab
• Follow the prompts to select the data you would like to download
• Click Download
• An XML file containing your selected data will be download
• This file can be shared with a third party or uploaded to a Green Button app to view.

When you download your data, it will be in an industry-standard XML format. Please note that XML files are designed to be read and analyzed by computer applications, not humans.

When you download your data, you may choose to send it to a third-party vendor yourself or upload it to an application to analyze. As Green Button data becomes widely available across Ontario, more third-party solutions and applications will be developed and made available to analyze the data.

The Green Button Connect My Data (CMD) standard, also referred to as Data Shares is the industry standard for securely authorizing and sharing electricity usage data with registered third-party vendors. With CMD, utility consumers can digitally authorize their usage data to be shared with energy-efficiency applications, clean energy companies, analytics firms, and others, who can view and analyze the data and provide insights into managing and conserving resource consumption.

Example 1: If you are considering installing or have installed solar panels on your home or business, you can connect the solar company to your Green Button usage data to analyze the return on your solar panel investment and make informed decisions about future investments.

Example 2: Commercial or industrial customers with multiple locations across different utility territories can access and analyze energy usage data from all sites in a consistently standardized format.

Any active Halton Hills Hydro customer can use Connect My Data to authorize third-party data sharing.

Yes, while it is highly encouraged that customers create an AccountOnline login, you can still Connect My Data from authorized third-party vendor websites and using a one-time access sign in to the Green Button portal.

Sharing your data starts on the third-party vendor’s website.

• Go to the authorized third-party vendor’s Green Button registration web page
• Complete the third-party vendor data-sharing authorization request form
• You will be redirected to Halton Hills Hydro’s Green Button portal to authenticate, verify the data sharing information, review the terms and conditions, and authorize data sharing.
• Halton Hills Hydro will then exchange a security token with the authorized third-party vendor which will allow secure, automated data sharing

Data can be shared with authorized third-party vendors that have registered with and been authorized by Halton Hills Hydro to use Connect My Data.

When authorizing a third-party vendor to access your data, you will select the type of data you want to share with them and for which account (if you have multiple accounts). You can select your Energy Usage Data, Billing Data and/or Account Information to be shared. Your utility provider will share the type of data you have selected and authorized for that account.

Energy Usage Data
Historical usages up to a maximum of 2 years and/or ongoing meter readings of your meter(s), which may include hourly interval, demand, net metering and water (if applicable).

Account Information
Your name, address(es), account number(s), meter number(s), contact information and other personally identifiable account information stored by the Utility.

Billing Information
Billing periods and individual charges, adjustments and credit lines items from your utility bill.

When authorizing a third-party vendor to access your data, you select the duration and frequency that you would like to share your data for.

Yes, you can stop sharing your data with a third-party vendor at any time. To do so, simply go to the Data Shares tab within the Green Button portal, select the vendor you would like to stop sharing your data with, and click Revoke.

Halton Hills Hydro has been certified by the Green Button Alliance. This is the industry standard to ensure compliance with data sharing and security standards…..

Third Party vendors must also be certified by the Green Button Alliance to by authorized as a registered vendor.

Before you authorize a third-party vendor, be sure to carefully read the terms and conditions on their website so that you understand how they will use, share or retain your data.

Third-party vendors must register through Halton Hills Hydro. Please review our Third-Party Terms and Conditions. If you are interested in becoming an authorized third-party vendor, visit the Third-Party Vendor Registration Portal to complete the registration form.

Customers must initiate Connect My Data (data sharing) through the authorized third party vendor’s website. From the third-party vendor website, the customer will be redirected to Halton Hills Hydro’s Green Button portal to authenticate and complete the Connect My Data authorization process.

The customer selects the duration for which the data will be shared with an authorized third-party vendor, along with the frequency that the data will be shared. The customer can revoke access at any time.

Customers are required to make their own authorizations online through one of the authorization methods. The customer must also authenticate with the utility before the security token can be exchanged with the utility and data can be shared.

Ontario Energy Board – Green Button
Ontario Newsroom
Green Button Alliance (GBA)