Erth Power logo
[sidemenu heading="I want to..."]
Commercial Bill Back 2024
Connect With Us Balance Forward and Previous Balance Cost of Power Global Adjustment Monthly Service Charge Distribution Transmission Connection Transmission Network Wholesale Market Service Standard Supply Service Administration Charge (SSS Administration Charge) HST Current Charges Total Amount Due Billed Demand Power Factor Meter Number(s) and Readings

Connect With Us

This section provides our contact information so you can easily access customer support, follow us online, get updates or report an outage.

Balance Forward and Previous Balance

The previous balance represents the amount owing on your previous bill. Any payments made since your previous bill will show below previous balance and a credit (CR). The balance forward represents the outstanding amount that is still owing on your account, which will be carried forward on your current bill.

Cost of Power

Electricity prices change in response to supply and demand. Businesses with a peak demand of 50 kilowatts or more pay the wholesale price for electricity.

The wholesale price of electricity is determined in the real-time market administered by the Independent Electricity System Operator (IESO). The IESO calculates the hourly Ontario energy price (HOEP), which is charged to large consumers that participate in the market, as well as local distribution companies, such as ERTH Power, who recover it from the subset of customers that pay the market price.

The HOEP is the average of the twelve market clearing prices (MCP) set in each hour. A new MCP is set every five minutes. Averages are weighted by the amount of electricity used throughout the province within each hour.

Global Adjustment

Global adjustment (GA) covers the cost of building new electricity infrastructure, maintaining and refurbishing existing generation resources and covers the cost of delivering conservation programs in order to ensure adequate electricity supply over the long term in the province of Ontario.

Monthly Service Charge

This is a fixed monthly charge that in part covers ERTH’s costs associated with operating the business.


This is a variable charge that covers ERTH’s costs associated with operating the business.

Transmission Connection

The connection charge covers the cost of connecting the distribution system to Hydro One’s transmission lines, as well as the cost of transforming electricity from high transmission voltages to lower voltages for distribution. This charge is collected on behalf of Hydro One.

Transmission Network

The network charge covers the cost of delivering the electricity from the generating stations to our region through Hydro One’s transmission system. This charge is collected on behalf of Hydro One.

Wholesale Market Service

The Wholesale Market Service Charge includes the cost of services provided by the Independent Electricity System Operator (IESO) to operate the wholesale electricity market and maintain the reliability of the high voltage power grid. It also covers certain costs incurred by local utilities to connect renewable generation. ERTH Power collects this charge, without mark-up, on behalf of the Independent Electricity System Operator.

Standard Supply Service Administration Charge (SSS Administration Charge)

This represents an administration charge of $0.25 per bill. This charge is set by the Ontario Energy Board and is the same for all utilities across the Province. This is a service charge for customers who have not contracted with an electricity retailer for their energy supply.


This amount represents the provincial Harmonized Sales Tax.

Current Charges

This is a total of all current charges. It does not include balance forward from previous bills.

Total Amount Due

This is the total amount you owe, including all current charges and any outstanding amount owing from previous bills.

Billed Demand

The higher of peak kW or 90% of the peak kVa demand. Billed demand is used in the calculation of distribution usage and retail transmission charges.

Power Factor

Your power factor is the ratio of the amount of energy used to do real work (real power or kW) and the amount of total energy used to do that work (kVA). A power factor of less than 90% may negatively impact your bill.

Meter Number(s) and Readings

This section provides your meter number(s) and meter reading(s) for the current billing period and previous billing period.

Go to Top