With TOU prices, the price depends on when you use electricity. You can help manage your electricity costs by shifting your usage to lower price periods.

There are three TOU periods:

• Off-peak: When electricity demand is lowest. Ontario households use most of their electricity – nearly two-thirds of it – during off-peak hours.
• Mid-peak: When electricity demand is moderate. These periods are during the daytime but not the busiest times of the day.
• On-peak: When electricity demand is generally higher. These are the busier times of day – typically when people cook, start their computers, and run heaters or air conditioners.

People use electricity differently depending on the season, so the TOU price periods are different in winter than summer.

With Ultra-Low Overnight (ULO) prices, customers are charged according to the day of the week and time they use electricity. This plan benefits customers who consume most of their electricity overnight or charge an electric vehicle overnight. The ULO periods are the same in the summer as in the winter.

There are four different ULO price periods.

• ULO Overnight – when electricity demand is lowest on average.
• ULO Weekend Off-peak – when electricity demand is generally lower.
• ULO Mid-peak – when electricity demand is moderate.
• ULO On-peak – when electricity demand is highest on average.

With Tiered prices, you can use electricity throughout the day/week at the same price (tier 1) if you do not exceed the allotted threshold (per kWh) for that season. Once that limit is exceeded, a higher price (tier 2) applies.

For residential customers, the threshold changes with the season to reflect a change in demand on the provincial grid. In the summer period (May 1 – October 31), the Tier threshold for residential customers is 600 kWh. In winter (November 1 – April 30), the Tier threshold for residential customers is 1,000 kWh.

The Electricity charges on your bill are based on the prices set by the Ontario Energy Board or a contract with a Retailer. Electricity charges are collected by the utility and paid directly to electricity suppliers. For a detailed explanation of electricity terms, visit the Ontario Energy Board website.

The Delivery is the cost of delivering electricity from generation stations across the province to GrandBridge Energy and then to your home or business. This includes the costs of building and maintaining the transmission and distribution lines, towers, and poles and operating provincial and local electricity systems.

Some of these charges are fixed and do not change from month to month. The rest are variable and increase or decrease depending on your electricity use.
GrandBridge Energy retains only the Monthly Service Charge and the Local Distribution charge (called the Delivery) on your bill.

Regulatory charges are the costs of administering the wholesale electricity system and maintaining the reliability of the provincial grid.

Electricity generators in Ontario receive a combination of payments from the operation of the wholesale market, payments set by regulation and payments set by contracts. Your portion of the net adjustments arising from these and other authorized payments is included on your bill as Global Adjustment.

The Ontario Electricity Rebate (“OER”) provides eligible customers with a 19.3% reduction on the amount of their bill before HST (O. Reg 363/16) as of November 1, 2023.

The following customers are automatically eligible for the OER:

• Residential and Small Commercial customers (billed under a Residential or General Service Energy rate class) using less than 50 kW.
• Commercial accounts that are greater than 50 kW but use less than 250,000 kWh annually.