Bill Breakdown

A breakdown of some of the information you will find on your bill is listed below. Select a link or scroll down the page to learn more.


This provincial charge pays for the generators to provide electricity. These charges are based on provincially mandated Time-of-Use (TOU) pricing for all households and small businesses across Ontario:

Off-Peak Period - This is when electricity is least expensive to provide and least expensive to consume.

Mid-Peak Period - This is when electricity production costs (and costs to the consumer) are in the mid-range.

On-Peak Period - This is when electricity is most expensive to provide and most expensive to consume.


The delivery line on your bill has three components: transmission, distribution and commodity charges associated with line loss. These charges are all approved by the OEB.

Delivery charges include:

Transmission - This provincial charge covers the cost of transmitting electricity across Ontario. Power flows from Ontario power plants and other sources, through transmission lines to your local utility.

Distribution - This local charge represents about 20% of your total electricity bill, and is the only portion that stays with ENWIN. This charge has been stable for 10 years. It funds distribution infrastructure and operations in Windsor.

Regulatory Charges

These charges cover the operation of the Ontario Energy Board ( and the Independent Electricity System Operator ( They also subsidize ratepayers in remote regions, and the connection of renewable generation.

Debt Retirement Charge

This 0.7¢/kWh charge is set by the Ontario Ministry of Finance to pay down the remaining debt of the former Ontario Hydro. Effective April 1, 2018, all electricity users are exempt from the Debt Retirement Charge.

Global Adjustment

The price of generation in Ontario is set by a competitive market. Certain generators receive payments through regulation or contract that differ from the market price. Your portion of the net adjustment arising from these different payments is included on your bill. If you participate in a Regulated Price Plan (RPP), the Global Adjustment amount is included and will not show on your bill.