Quote Guide
What to Look for in a Solar Panel Quote
When you receive a quote for solar panel installation, it’s essential to carefully evaluate all the details to ensure you are getting the best value for your investment. Here are the key components to check:
System Size and Output
What to look for: Ensure the quote specifies the size of the solar system (in kilowatts, kW) and the expected energy output (in kilowatt-hours, kWh) per year.
Why it matters: A system’s size and output should align with your household’s energy needs. The larger the system, the more electricity it will generate, but you want to balance the cost with your actual energy consumption. Over-sized systems may increase your upfront costs without significant added benefits.
Panel Efficiency and Brand
What to look for: The quote should indicate the brand and efficiency of the solar panels being proposed. Reputable brands often come with better warranties and higher efficiency ratings.
Why it matters: Higher-efficiency panels convert more sunlight into electricity, which is especially important if you have limited roof space. Trusted brands like LG, Q Cells, or SunPower are known for producing high-quality panels that last longer and perform better.
Inverter Type and Brand
What to look for: Check which type of inverter (string, micro, or hybrid) is included in the quote, and whether it’s a high-quality, reliable brand like Fronius, SMA, or SolarEdge.
Why it matters: The inverter is the heart of your solar system as it converts DC electricity to AC electricity for your home. Different types of inverters suit different setups. Microinverters are great for shaded roofs, while string inverters are more common for simpler, unshaded roofs.
Total Cost and Payment Options
What to look for: The quote should break down the total system cost and list any additional fees (e.g., installation, permits, inspection). Check if there are options for financing or payment plans.
Why it matters: Understanding the total cost will help you compare quotes. Be wary of low quotes that don’t include all necessary components or costs, such as permits, installation, or system commissioning.
Warranties
What to look for: A reputable installer will offer warranties for both the panels (usually 25 years) and the inverter (typically 5-12 years). Some companies may also offer a warranty on labor for the installation.
Why it matters: Solar panels can last up to 25 years, but inverters may need replacing after 10 years. Good warranties protect you from future costs in case of faults or degradation.
Installation Details and Timeline
What to look for: The quote should specify the installation timeline, including the expected start and finish dates. It should also outline what’s involved in the installation (e.g., roof preparation, electrical work, inspections).
Why it matters: Knowing how long installation will take helps you plan. A clear timeline ensures you understand the process and that the system will be up and running as expected.
Permits and Compliance
What to look for: Ensure the quote includes details about whether permits will be required for installation and if the installer will handle them. The system should also meet local compliance and regulatory standards.
Why it matters: Some regions require permits for solar installations. Your installer should take care of this paperwork for you to ensure everything is legally compliant.
System Performance Guarantee
What to look for: Look for a performance guarantee, which ensures the system will perform at a certain percentage of its rated output over a specified period, often 10-25 years.
Why it matters: A performance guarantee gives you peace of mind that your system will meet its expected energy output. This can be especially useful if you rely heavily on solar for your power needs.
Monitoring and Maintenance
What to look for: Some quotes include monitoring systems that allow you to track your solar system’s performance in real time via an app or online platform. Check if maintenance services are included or offered separately.
Why it matters: Monitoring helps you ensure that your system is working as it should. Regular maintenance ensures long-term performance and helps identify issues early.
Grid Connection and Buy-Back Rates
What to look for: If your system will be exporting energy to the grid, ask the installer if the quote includes grid connection fees and whether the quote provides information on buy-back rates for the electricity you export.
Why it matters: Some providers offer better rates for energy exported to the grid, which can significantly affect your savings. Also, grid connection may have an associated cost or timeline.
Additional Features or Add-ons
What to look for: Some systems may offer additional features, such as battery storage or smart home integration. Check if these are included or available as add-ons in the quote.
Why it matters: If you are interested in storing excess solar power for later use, ensure the quote includes battery options. Add-ons may also improve system performance or make the system more future-proof.
The best first step?
Get a proper assessment of your home. Every property is different, and a professional can tell you exactly what kind of setup would work best for your situation.