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Net System Load Shape

Customers with interval meters (specialized meters which register hourly energy use) are charged based on their hourly load profile.

All other Standard Supply Service (SSS) customers (customers that have not signed a retail contract) are charged based on Toronto Hydro Electric System Limited (THESL) Net System Load Shape (NSLS). The NSLS is specific to the local utility, and is calculated by taking the overall THESL profile and deducting the sum of all interval meters and fixed load profiles (such as street lighting).

All SSS non-interval metered customers are charged for their energy use by applying the Hourly Ontario Energy Price (HOEP) to THESL NSLS. The IESO posts the (HOEP) on their web site. Click here for further information.

Please note that THESL NSLS information is based on Eastern Standard Time, and reflects a minimum one-month lag before it can be posted.

The above calculation does NOT apply to residential, low volume and MUSCH (Municipal, Universities, Schools, Charities and Hospitals) accounts. The Ontario Energy Board has developed an "Electricity Price Plan", for these customers. To view information on current electricity prices click here.

DISCLAIMER Although every attempt is made to ensure the accuracy of the following information, Toronto Hydro-Electric System Limited, its parent company and/or its Affiliates (as such term is defined under the Business Corporations Act (Ontario)) makes no representation or warranties whatsoever with respect to the contents of this information or data, including without limitation the accuracy or completeness of same. Under no circumstances shall Toronto Hydro-Electric System Limited, its parent company, and/or any of its Affiliates be liable for any errors or omissions contained in the information or data, or any losses, liabilities, claims, causes of action and/or expenses that may arise from any errors or omissions contained in the information or data or that may result from anyone using this information or data. Toronto Hydro-Electric System Limited further reserves the right to revise the information/data at any time without any obligation to notify any person or entity of such revisions or changes. The users of this information/data shall use it at their own risk and shall save Toronto Hydro-Electric System Limited, its parent company and/or any of its Affiliates harmless from any legal action/proceeding arising from any errors or omissions contained therein.