Key Questions to Ask When Choosing Solar Panel Systems

Understanding Your Energy Needs

Before selecting a solar panel system, assess your energy consumption. Start by reviewing your electricity bills from the past year to identify your average monthly usage.

Next, consider variations in usage across different seasons. If you anticipate changes, such as adding new appliances or increasing energy efficiency, factor these into your calculations.

Assessing Roof Suitability

Evaluate your roof's condition and orientation. A south-facing roof is generally the best for solar panels in the Northern Hemisphere, while a north-facing roof works better in the Southern Hemisphere.

Check for any obstructions like trees or buildings that could cast shadows on the panels, reducing their efficiency. If your roof needs repairs, address this before installation.

Exploring System Types

Familiarize yourself with the various types of solar panel systems: monocrystalline, polycrystalline, and thin-film. Monocrystalline panels are efficient but more expensive, while polycrystalline panels are more affordable but slightly less efficient.

Thin-film panels are less common but can be useful in specific circumstances due to their flexibility and lightweight nature.

Investigating Inverter Options

Choose between string inverters, microinverters, and power optimizers. String inverters are the most common and typically the least expensive. However, they perform less efficiently when panels are shaded.

Microinverters optimize output on an individual panel basis, making them ideal for shaded roofs, while power optimizers work similarly but are paired with string inverters.

Budget Considerations

Determine your overall budget for the solar panel system. Include installation costs, permits, and any additional equipment such as batteries or monitoring systems.

Look into available financing options, including loans, leases, and power purchase agreements (PPAs), to find a solution that fits your financial situation. Don't forget to consider potential tax credits and incentives that can reduce upfront costs.

Evaluating Installation Companies

Research and compare multiple solar installation companies. Look for licensed and insured companies with positive reviews or testimonials from previous customers.

Ask for quotes from different providers, ensuring they cover the same specifications. Inquire about warranties offered on both equipment and installation, ensuring peace of mind regarding your investment.

Checking Incentives and Rebates

Research local, state, and federal incentives for solar installation. Many areas offer rebates that can significantly reduce initial costs. Websites like the Database of State Incentives for Renewables & Efficiency (DSIRE) can provide valuable information.

Understand the application process for these incentives and ensure that your installation company can assist you with it.

Understanding Maintenance Needs

Inquire about the maintenance requirements of the system. Most solar panels require minimal maintenance, but it's important to confirm if you'll need periodic cleaning or inspections to ensure optimal performance.

Ask about service contracts or support options available from the installation company for ongoing maintenance needs.