Commercial Electricity Rates Jump in Ontario - What This Means for Solar & Businesses

Solar Power Offers a Solution to Rising Commercial Hydro Rates for Ontario Businesses

Ontario’s electricity landscape is changing quickly, and for many commercial businesses, it’s a story of rising costs, tightening budgets, and difficult operational decisions. Fortunately, there’s a strategic and financially sound solution: solar power. Especially when solar and battery backup systems are paired with valuable provincial incentives like the Save On Energy Retrofit Program.

In this guide, we’ll explain:

• Why commercial electricity rates in Ontario are increasing
• The effects on the bottom line of your business
• Solar power’s unique value proposition
• How the Save On Energy Retrofit Program makes solar more valuable
• Some real-world ROI examples & simple financial comparisons
• Solar Power Store products that make sense for Ontario businesses
  

What’s Changing with Ontario’s Electricity Costs

As of November 1, 2025, Ontario dramatically increased electricity prices under the Regulated Price Plan (RPP), affecting households and commercial customers alike. This includes changes to Time-of-Use (TOU) and Ultra-Low Overnight (ULO) pricing that directly impact businesses.

Here’s a snapshot of the new structure for TOU/ULO pricing (illustrative):

For many commercial operations, peak electricity usage happens during business hours, precisely when rates are highest. This can substantially increase monthly bills.

According to an analysis of Ontario’s regulated pricing, average base power costs have jumped over 30% compared with the previous year, and even after rebates like the Ontario Electricity Rebate (OER) are applied, businesses are still paying significantly more, with some seeing net increases above 15%.

The Hidden Cost Traps

Businesses on Tiered Pricing are also hit hard. Under tiered plans, commercial customers pay a lower rate up to a usage limit (e.g., 750 kWh/month), then a higher rate above that threshold. After the rate adjustment, the Tier-2 price increased substantially, meaning many businesses lose the advantage of the lower tier quickly each month.

These structural changes have three significant financial effects:

1. Higher monthly electricity bills
2. Increased sensitivity to peak-hour usage
3. Greater overall volatility and unpredictability
   

For companies with high energy demand, this isn’t just an expense; it’s a strategic risk.

Solar Power as a Financial Strategy for Businesses

Solar power now becomes a cost-management strategy due to rapidly rising electricity rates, delivering an immediate reduction in operating costs. With a commercial solar power system designed for load displacement (where your solar-generated power is used directly by your building), each kilowatt-hour (kWh) generated is one less kWh purchased from the utility.

This means:

• Lower monthly energy bills
• Reduced exposure to high peak rates
• More predictable operating costs
  

Ontario’s Save On Energy Retrofit Program

The Save On Energy Retrofit Program is Ontario’s flagship initiative that encourages businesses to adopt solar and other energy-efficiency technologies.

Solar Incentive Details 

Under the Prescriptive Solar PV Distributed Energy Resources stream:

• Micro-generation systems (≤ 10 kW-DC) qualify for $1,000 per kW-DC installed.
• Small/Medium systems (greater than 10 kW up to 1,000 kW) qualify for $860 per kW-AC installed, up to a maximum of $860,000.
  

Example:
If your business installs a 500kW solar PV system, the rebate could be:

500 kW x $860/kW = $430,000 rebate

This rebate essentially offsets a significant portion of your upfront project cost, potentially covering up to 50% of eligible project costs.

Who’s Eligible?

Businesses, industrial facilities, institutional buildings, malls, offices, warehouses, universities, hospitals, agricultural facilities, and multi-residential buildings can participate, often without restrictive annual usage minimums.

This broad eligibility means solar adoption isn’t limited to large enterprises; mid-size and even some smaller commercial operations can qualify.

How to Calculate Solar ROI in a Rising Electricity Market

Now let’s put real numbers to the equation so you can see how a solar project stacks up, especially with rising grid prices.

Typical Solar Power ROI Estimate

Let’s assume:

• Your business uses 800,000 kWh/year
• You pay an average blended electricity cost of 22 ¢/kWh
• You install a 300kW solar array
• System produces 350,000 kWh/year
• Retrofit program provides $258,000 in rebates ($860/kW × 300 kW)
• Installed system cost after rebate: $492,000
  • (Assume $2,500/kW gross cost; actual quotes may differ)

Year-by-Year Savings Estimate

That’s less than a decade before the system has paid for itself, and commercial systems often last 25+ years.

Note: This example does not include other potential incentives like the Federal Clean Technology Investment Tax Credit (ITC), accelerated depreciation, or utility demand charge savings, all of which improve ROI further.

Reduce the Peak & Save More Every Month

The scenario we've shown here is a simplified way to illustrate the fundamentals of how solar achieves such a quick payback period. However, there are other charges on commercial energy bills that solar power and battery backup systems will affect in a positive way.

Commercial utility bills in Ontario charge for the total energy used by the business in kWh, but there will also be a charge for the peak draw of energy that the business uses during that time. Basically, this peak charge is determined by how high the kW draw goes, and is often related to how much energy is needed to start up power-hungry equipment.

For example, when large pieces of machinery are switched on, a surge of kW is required to get them started up. However, the ongoing power draw to keep them operating once they have started is typically much lower. Unfortunately, utility companies calculate some fees on your bill based on the biggest power spike, and do not average the kW draw out over the course of the day. This means that even though the ongoing operation will have a stable kW draw, your business gets charged a premium because of that big amp surge at the beginning of the day.

An easy way to visualize this is to think of electricity as water. You get charged for how much you use over time, but you also get charged for how big the pipe is that delivers the water to you. A bigger pipe delivers a lot more water at once; however, it costs more to get that bigger pipe connected to your business. It's essentially the same with electricity. A business with a peak draw of 1,000kW requires a much bigger 'pipe' than a business with a peak draw of 200kW, and the charges on the monthly utility bill will reflect this.

Sample of Current Delivery Charges from Toronto Hydro (Feb 2026)

What if we told you that a solar power system and battery solution can make it so that your business doesn't need that massive pipe anymore? With a battery and inverter system in place, that big energy draw spike at the beginning of the day doesn't need to come from the grid anymore. The necessary energy can now be pulled through the inverter from your battery bank. By using the battery bank as the primary power source during startup, you can significantly reduce the size of the amp service needed for the business and cut monthly energy bills even further.

When you combine this advantage with the overall reduction in kWh drawn from the grid that comes from daily power generation of solar panels, the positive impact on your business' operating costs is amplified even more. Looking at the current delivery charges from Toronto Hydro (as of Feb 2026), a business that is currently in the 1,000-4,999kW tier would pay a Customer Charge of over $1,000 per 30 days. However, if this business could drop down to the 50-999kW tier, this Customer Charge goes down to just $65 per 30 days.

Why Business Solar Makes Strategic Sense Now 

Here are the core reasons Ontario commercial customers should consider solar today. 

Electricity Prices Are Up, And Will Inevitably Go Higher 

Ontario’s recent electricity rate hikes aren’t a one-off anomaly. The province’s energy regulator routinely adjusts pricing to reflect actual costs, meaning businesses face continued upward pressure without direct control. Solar provides predictable, stable energy costs that aren’t subject to future regulated hikes.

Incentives Are Generous, But Won’t Last Forever 

The Save On Energy Retrofit Program has strong rebates now, but most incentive programs are subject to funding limits and periodic updates. Active projects or pre-approvals lock in current incentive rates, which could disappear or shrink in future program cycles.

Solar Aligns with ESG & Sustainability Goals 

Beyond dollars and cents, many organizations have environmental, social, and governance (ESG) goals. Solar systems help businesses:

• Reduce greenhouse gas emissions
• Demonstrate sustainability leadership
• Improve brand reputation

This is especially relevant for enterprises with stakeholders, customers, or investors focused on carbon footprint reduction.

Complementary to Other Energy Upgrades 

Solar dovetails with other efficiency and electrification strategies, such as:

• LED lighting upgrades
• HVAC modernization
• Energy-efficient motors and drives
• On-site storage/batteries

The Retrofit program incentivizes many of these alongside solar, meaning multiplying value across efficiency projects.

Solar Power Store Products That Accelerate ROI 

To help Ontario businesses maximize value, Solar Power Store offers commercial-grade products designed for reliability and performance. 

Commercial Solar Panels

• High-efficiency bifacial solar modules ideal for rooftops or carport arrays, or for ground-mounted solar racking systems
• Impressive power generation capacity for medium to large solar installations with plenty of rooftop space and high energy demands

Example: Maple Leaf 700W Bifacial Solar Panels are perfect for maximizing output per square metre. These panels are also available by-the-pallet and even by the shipping container for solar power systems of any scale.

Solar Inverters 

• Powerful solar power inverters with the ability to be either off-grid or hybrid with a grid connection, built for commercial systems with high energy demands
• Scalable in parallel with additional inverters and battery arrays for future expansion
• Luxpower & Fox ESS offer a wide range of integrated solutions

Example: Sol Ark 30k and 60k line offers modular battery expansion for future growth, and is optimized for multi-string solar systems with advanced monitoring. The Luxpower GEN-HB-US 25kW hybrid solar inverter delivers 25kW of power and can be configured with up to 6 units in parallel to meet the power needs of energy-hungry business operations.

Battery Storage Solutions 

Since the retrofit PV incentives focus on load displacement, pairing with batteries is essential to shift grid energy purchases away from the most expensive peak-demand periods and help power your business with the lowest possible per-kWh pricing.

Example: For a simple, flexible, and future-proof inverter and battery storage solution, the Fox ESS AIO All-in-One inverter/battery system offers everything needed to maximize performance in a compact size. Link multiple inverter/battery towers together to accommodate growing power needs with up to 28kW of battery storage per tower. 

Another option for larger-scale commercial and industrial operations is the Sol-Ark L3 Series LimitLess Lithium Battery system. Offering massive battery storage capacity and flexible installation configurations, it's a versatile solution for a wide range of commercial applications.

Getting Started: A Clear Action Plan 

Step 1. Evaluate Your Electricity Use

Review past utility bills to understand seasonal consumption and peak demand patterns. This information is vital to ensuring that we can build and configure the best possible solar power solution for your business.

Step 2. Contact Solar Power Store for a Quote

We’ll help estimate system size, performance, and ROI projections based on your load profile. Have specific questions about what can be achieved for your unique business conditions? We’ll be sure to include all the right answers for you.

Step 3. Initiate a Retrofit Pre-Approval

Submit your application before signing equipment purchase orders to secure incentive eligibility. Want us to help with this? We can take care of all the paperwork and applications for you! We’ll keep you in the loop as your application moves through the system and let you know as soon as your approval is received.

Step 4. Coordinate with Your Local Distribution Company (LDC)

Your LDC will confirm interconnection requirements for behind-the-meter solar systems. If you need assistance in coordinating this, the Solar Power Store team is here to help manage these arrangements and ensure they are done right.

Step 5. Install, Commission, and Save

Once installed and commissioned, your solar system starts generating, and your savings begin immediately. Solar Power Store is here to deliver all the ongoing support and service you need, any time you need it.

Now Is the Time to Seize the Opportunity 

Ontario’s commercial electricity rates have risen sharply, and they’re not likely to retreat any time soon. Rising utility costs put pressure on margins, but implementing a smart, forward-thinking energy strategy for your business can turn that challenge into a powerful advantage.

Commercial solar systems, backed by the Save On Energy Retrofit Program, offer:

• Lower monthly energy costs
• Protected future energy budgets
  
• Strong ROI when incentives are factored in
• Support for sustainability and operational resilience

Don’t wait for “tomorrow’s higher rates” to hurt your business. Solar is not just a smart sustainability choice; it’s a strong financial decision in an era of rising energy costs.

If you’d like help modelling your savings with real numbers and product recommendations based on your building’s usage, Solar Power Store can help. Reach out today for a risk-free solar power system quote for your business!