How to get the most from your power bill

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Are you getting the most from your power bill?

Sure, your power bill tells you what you need to pay, but it also gives you a wealth of other information if you know where to look.

Your cost of power depends on and is driven by the structure of the power system (fixed and variable costs), combined with the structure of the business (mostly regulated), that creates specific savings opportunities.



Charge Determinant







The HOURLY ENERGY PRICE varies each hour according to the marginal cost of the energy required to supply Ontario demand and compensate for losses.





The GLOBAL ADJUSTMENT is charged to a market participant during each Adjustment Period (July 1 to June 30) according to the Peak Demand Factor for each customer based on his metered demand in the  peak hour of the 5 highest system demand days during the prior Base Period (May 1 to April 30).









Peak kW in month (coincident peak)

MONTHLY COINCIDENT PEAK Defined as “maximum kW during 7a.m. – 7p.m., Monday to Friday, excluding holidays.”




Maximum kW in a month (non-coincident peak)

MONTHLY NON-COINCIDENT PEAK Defined as “maximum kW at any time”




Fixed charge



Fixed monthly charge.





MONTHLY PEAK Per kW adjusted for power factor.





Debt Retirement Charge



Scheduled to be removed from bills by 2015


Note: Values are indicative, based on Toronto Hydro General Service > 50 kW rates for 2012.

Charge determinants based on the facility’s peak demand, in the same hours when the system demand is at its peak, and during other non-peak and off-peak hours, create an opportunity to reduce costs by managing and reducing facility peaks, and by avoiding consumption during system peak periods.

For many businesses, better identifying and managing consumption around system peaks and around individual facility and portfolio peaks is the key driver of cost savings.

Every kilowatt of peak demand counts.

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