Time-of-Use Pricing

Time-of-Use (TOU) is Here

The price of electricity in Windsor is now calculated by using TOU rates. By making this change, ENWIN was complying with a mandate from the Ontario Energy Board to promote a culture of conservation in Ontario. Here are answers to some of the questions you may have regarding TOU:

What is Time-of-Use Pricing?

Time-of-Use pricing is based on when electricity is used, taking into consideration time of day, time of week (weekday/weekend), and season.

ENWIN Talks About Conservation and Time-of-Use


How Does the Time-of-Use Price Structure Work?

Now that TOU pricing is in effect in Windsor, prices for electricity will vary according to demand levels at given times of day. Higher prices will be charged during on-peak periods, when demand is highest. Lower prices will be charged during mid-peak and off-peak periods, when demand is lower.

What are the TOU rates, and when are they in effect?

Time-of-Use periods -- off-peak, mid-peak and on-peak will vary between summer and winter. The charts below indicate these periods for summer, winter and weekend/holiday periods:

Time of Use Rates Chart
Time of Use Rates Chart
Time of Use Rates Chart

You can find out more about these rates by visiting the Electricity prices section of the Ontario Energy Board website.

Why did we change the TOU price structure?

By doing so, ENWIN complied with an Ontario Energy Board (OEB) directive to energy providers like ENWIN to calculate electricity delivery costs according to the TOU price structure.

When we all use a lot of electricity at the same time, we create peak demand periods. And supplying electricity at those peak times has a range of impacts:

  • Higher demand leads to higher costs, adding to provincial electricity costs.
  • It's hard on the environment because it adds to the amount of new generation, transmission and distribution infrastructure Ontario must build.
  • It puts a strain on our electricity system.

TOU pricing is intended to encourage consumers to use electricity during off-peak times, so as to reduce impacts on the electricity grid.

One Week Time-of-Use Chart

These charts show weekly calendars for Time-of-Use price periods - one for summer and one for winter. Green represents off-peak hours, which total 64% of the total week and are the same summer and winter. Customer who are able to shift the majority of their consumption to Off-peak times of day or days of the week, will benefit through lower electricity rates.

Time of Use Rates Chart - Winter
Time of Use Rates Chart - Summer
Time of Use Pricing Legend

How can I benefit from TOU?

Time-of-Use pricing rewards you for using electricity during low-demand (off-peak) periods wherever possible. By making simple changes to the times of day you run major appliances, you will be able to keep your costs as low as possible. For example, if you do your laundry weekdays at 5:30 p.m., when you arrive home from work, you will be charged higher (on-peak) rates. Postponing this task until after 7 p.m. can save you money, through lower (off-peak) rates charged.

Why did my account number change?

In order to serve you better and to move to TOU pricing, ENWIN has designed and installed a new customer service computer system. In to fully activate this system, ENWIN has provided each customer with a new account number. February 18 onward your bill will show the new account number you will use in the future. This change will have little impact for most customers. However, those who pay their bills online or by telephone banking with their financial institution, will find it necessary to update their payee profiles after receiving their new account numbers.

How will ENWIN help?

Over the next few months, we will work closely with customers and financial institutions to make sure account number transitions and other changes related to Time-of-Use and our new customer service system go as smoothly as possible. We also offer ENWINconnect, which will help you understand your consumption patterns, and find ways to manage your costs.

What is ENWINconnect?

ENWINconnect is available free to all customers who are subject to TOU rates. It is a new, interactive, online tool, available FREE to customers who sign up for this service. Now that you have transitioned to Time-of-Use pricing, you are able to sign up for the convenience of 24/7 online access to your account information.

Using ENWINconnect, you will easily monitor your own consumption data and learn where and how you can best save under the TOU rate system. With ENWINconnect, you can:

  • Connect with your own data online, 24/7.
  • Create easy-to-understand graphs and charts.
  • Create your own consumption reports.
  • Use your data to inform your energy decisions.
  • "Load Shift" your usage to your best advantage.
  • Receive alerts on excessive consumption.
  • Create multiple account profiles.
  • Sign up for pre-authorized payments.
  • Receive emails when your bill is ready.
  • Learn about safety and conservation.
  • Read the latest electricity news bulletins.
  • Receive general and emergency emails.

Click here to view some energy saving tips!

Will My Energy Usage Still be Private?

ENWIN will be able to see how much energy you are consuming and when  but not how you are consuming energy, or why. Other than allowing more frequent, accurate readings, nothing will change. Your private information will remain, as always, private.

Where Can I Learn More?

To learn more about Time-of-Use pricing, click here.

To learn about conserving energy using energy-rated appliances, click here.

To learn about ENWIN's conservation and safety education programs, click here.

10 Smart Meter Lane

Take a tour of 10 Smart Meter Lane to see how you can better manage your electricity costs when Time-of-Use (TOU) pricing comes into effect. This interactive tool shows how running appliances at different times of the day or week can impact your electricity bill.


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