Frequently Asked Questions
Find answers to common questions about solar energy in Ontario.
01. Understanding Solar Energy
Solar panels use photovoltaic (PV) cells to convert sunlight into direct current (DC) electricity. An inverter then converts this electricity into alternating current (AC), which powers your home or business. This allows you to generate your own clean electricity and reduce your reliance on grid-supplied power.
On-grid systems connect to the utility grid, allowing you to use solar electricity while maintaining access to grid power. Off-grid systems operate independently and typically require batteries. Hybrid systems combine solar panels, battery storage, and a grid connection. The right configuration depends on your energy requirements and goals.
Kilowatts (kW) measure power, while kilowatt-hours (kWh) measure energy produced or consumed over time. For example, a 10 kW solar system operating at its rated output for one hour generates 10 kWh of electricity. Understanding these measurements helps you compare system capacity with your actual electricity needs.
02. Solar System Components
A solar inverter converts the direct current (DC) electricity generated by solar panels into alternating current (AC) electricity used by most homes and businesses. It also helps manage system performance and safety. Choosing the appropriate inverter is important for efficiency, equipment compatibility, and potential future upgrades.
Monocrystalline panels are made using single-crystal silicon and generally offer higher efficiency, making them suitable for properties with limited installation space. Polycrystalline panels use multiple silicon crystals and typically have lower efficiency. The most suitable panel depends on available space, performance requirements, equipment availability, and budget.
Yes. Many modern solar systems include monitoring technology that allows you to track electricity generation through a mobile app or online dashboard. Depending on the equipment installed, you may be able to review daily, monthly, and annual production, monitor system performance, and receive alerts about potential issues.
03. Solar Performance
Modern solar panels commonly operate for 25–30 years or longer. Their electricity output gradually decreases over time, a process known as degradation. Many manufacturers offer long-term performance warranties, although coverage varies. Other system components, such as inverters, may need replacement earlier.
Yes. Solar panels can generate electricity whenever sufficient daylight reaches them, including during cloudy or rainy weather. However, production is generally lower than on clear, sunny days. Annual energy estimates account for expected weather patterns and seasonal sunlight variations.
A damaged or malfunctioning panel can reduce electricity production. The impact depends on the system design and inverter technology. Monitoring equipment may help identify performance issues, while a qualified technician can inspect the system and determine whether a panel requires repair or replacement.
04. Electricity & Grid Connection
Net metering allows eligible electricity customers to generate renewable electricity, use it on-site, and send surplus electricity to the utility grid in exchange for bill credits. These credits can help offset eligible electricity charges when solar production is lower than consumption. Participation is subject to applicable program and utility requirements.
If your system participates in an approved net-metering arrangement, surplus electricity can flow into the grid and generate credits under the applicable utility rules. A compatible battery system may also store some excess electricity for later use. The available options depend on your equipment and utility agreement.
Yes. Most grid-connected solar customers continue receiving electricity bills. Solar generation can reduce the electricity purchased from the grid, but fixed charges and other applicable fees may remain. Your final bill depends on electricity consumption, solar production, utility rates, and applicable net-metering credits.
05. Long-Term Solar Ownership
Yes, expanding an existing solar system may be possible depending on available installation space, inverter capacity, electrical infrastructure, and utility connection requirements. Planning for potential expansion during the initial design can make future upgrades easier and help avoid unnecessary equipment replacement.
If you own your solar system outright, it can generally be included in the property sale unless otherwise agreed. Financed or leased systems may involve additional transfer or repayment requirements. Warranty transferability and utility arrangements should also be reviewed before completing the sale.
Yes. Many solar panel materials, including glass, aluminum, and certain metals, can be recovered through specialized recycling processes. Recycling availability and requirements vary by location and facility. Responsible recycling or disposal helps reduce waste and recover valuable materials.
Still Have Questions?
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