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.
Ontario Electricity Market Price
The Ontario Electricity Market Price, or Ontario Price, is charged to local distribution companies (LDCs) and other non-dispatchable loads. It forms the basis of the commodity charges in the retail electricity market and comprises the Day-Ahead Ontario Zonal Price (DA-OZP) and the Load Forecast Deviation Adjustment (LFDA).
The Day-Ahead Ontario Zonal Price is the load-weighted average of all day-ahead locational marginal prices (LMPs) calculated for non-dispatchable loads (NDLs) in Ontario.
The Load Forecast Deviation Adjustment (LFDA) is the total value of the IESO’s forecast deviation for all NDLs in $/MWh for a given settlement hour.
Note: Dispatchable load and price-responsive load pay the Locational Marginal Price.
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.
Distribution
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.
HST
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.

