VoltShift

Ontario ULO Arbitrage Planner

Optimize Your Energy Bills with Smart Arbitrage

Ontario's Ultra-Low Overnight (ULO) rate plan offers electricity at just 3.9¢/kWh overnight, while weekday peak hours cost 39.1¢/kWh. By charging a home battery at night and discharging it to power your home during the day, you can save hundreds. Let's find your ideal setup.

1. Enter Your Energy Consumption

Upload a past bill image to automatically scan units, or enter them manually.

Month 1
Month 2
Month 3
Computed Daily Avg: 30.0 kWh

2. Input Space & EV Parameters

Specify the physical space available for the battery installation and smart charging settings.

Charge EV overnight on ULO rates (Saves extra 3,000 kWh/yr)

Step 2 of 3

Select a Hardware Solution

Based on your peak weekday usage, the recommended battery size is displayed below. Choose a model that fits your space constraints to calculate your specific financial yield.

Your Energy Profile Summary

Avg Monthly Consumption: -- kWh
Avg Daily Consumption: -- kWh
Peak Period Consumption (4 PM - 9 PM): -- kWh / day

Market Battery Options

Suggested Size: -- kWh
Step 3 of 3

Your Financial ROI Analysis

Review the 10-year cumulative cash flow, payback period, and annual yield calculated specifically for your selected battery package.

Loading battery sizing comparisons...

30-Year Cumulative Savings Cash Flow

ROI Forecast (30 Yrs)
Estimated Annual Savings
$0
+$0 vs standard TOU
Investment Payback Period
0 Years
0% ROI
30-Year Net Returns
$0
Lifetime yield metrics

Fine-Tune Specifications

Adjust the parameters of your selection below to simulate custom settings:

13.5 kWh
90 %
2.0 %
$14,500

Detailed Arbitrage & Lifecycle Payoff

Metric Name Value Details
Overnight Charging Cost $0 / yr Annual cost to charge battery at overnight ULO rate (3.9¢/kWh)
Peak Demand Avoidance Savings $0 / yr Annual bills reduced by discharging during On-Peak hours (39.1¢/kWh)
EV Smart Charging Yield $0 / yr Direct savings by shifting 3,000 kWh of EV charging to overnight rate
Projected Lifecycle Limit -- Years Based on battery capacity, daily usage, and rated cycles of life
Step 4 of 4

Ontario Implementation & Savings Plan

Maximize your return on investment by selecting certified local energy savings partners and applying for official provincial rebates.

Ontario Rebates & Incentives

Offset the upfront hardware costs of your home battery using available federal, provincial, or municipal funding programs:

  • Save on Energy (HRS Program):

    Get up to $5,000 rebate ($300/kWh) when pairing battery storage with a new solar installation. Visit Program Page

  • Municipal PACE Loans:

    Access low-interest financing through local programs (e.g., Toronto HELP, Durham Greener Homes) and pay it back via your property tax bill. Learn More

Energy Savings Partners

Work with certified installers to handle your system setup, municipal permits, and incentive applications:

  • Ontario GreenPower Solutions:

    Certified solar-battery installation technicians and Save on Energy program filing experts.

  • VoltCharge Systems Canada:

    Accredited Tesla Powerwall & Enphase installer group specializing in smart panel integrations.

  • EcoSolar Durham:

    Regional installers providing full municipal PACE financing application assistance.

Ontario ULO Rate Structure

VoltShift targets the 10x price ratio between Overnight and On-Peak periods to maximize arbitrage yields.

ULO Overnight 11:00 PM – 7:00 AM (Daily) 3.9 ¢ / kWh
Weekend Off-Peak 7:00 AM – 11:00 PM (Weekends/Holidays) 9.8 ¢ / kWh
Mid-Peak 7:00 AM – 4:00 PM & 9:00 PM – 11:00 PM (Weekdays) 15.7 ¢ / kWh
On-Peak 4:00 PM – 9:00 PM (Weekdays) 39.1 ¢ / kWh

ULO Arbitrage Strategy

  • Smart Overnight Charging:

    The system charges your battery from the grid between 11 PM and 7 AM at Ontario's lowest rate (3.9¢/kWh).

  • On-Peak Offsetting:

    During the weekday peak window (4 PM - 9 PM), the battery discharges to cover home consumption, bypassing the 39.1¢/kWh rate.

  • Carbon Reduction:

    Reduces strain on Ontario's peaking natural gas plants, lowering overall grid emissions.