Frequently Asked Questions

Solar panels convert sunlight into electricity using photovoltaic (PV) cells. When sunlight hits the cells, it creates an electrical field that generates direct current (DC) electricity. An inverter then converts this to alternating current (AC) that can power your home. Any excess electricity can be sent back to the grid through net metering or stored in a battery.

Most solar panels come with a 25-30 year performance warranty and can continue producing electricity for even longer. After 25 years, panels typically still produce around 80-85% of their original capacity. With no moving parts, solar panels require minimal maintenance.

Yes, solar panels work across all US climates. They generate electricity from daylight, not heat. In fact, panels are slightly more efficient in cooler temperatures. States like Massachusetts and New York have thriving solar markets despite less sunshine than the Southwest.

A typical 6kW system (suitable for most US households) requires around 300-400 square feet of roof space. This usually means 15-20 panels depending on their efficiency. South-facing roofs are ideal, but east and west-facing roofs can also work well.

The average cost for a residential solar panel system in the US is $15,000-$25,000 before the federal tax credit, depending on system size and location. After the 30% Federal Solar Tax Credit (ITC), costs drop to $10,500-$17,500. The investment typically pays for itself within 7-12 years.

Most US households save $1,000-$2,500 per year on electricity bills with solar panels. Your actual savings depend on your electricity rates, system size, local sunshine, and net metering policies. In states with high electricity rates like California, Hawaii, and the Northeast, savings can be even higher.

The Federal Solar Investment Tax Credit (ITC) allows you to deduct 30% of the cost of your solar installation from your federal taxes. This credit applies to both residential and commercial installations and is available through 2032, after which it begins to step down.

Many states offer additional incentives beyond the federal tax credit, including state tax credits, rebates, Solar Renewable Energy Credits (SRECs), and property tax exemptions. Net metering policies, which let you sell excess power back to the grid, also vary by state.

Most residential installations are completed in 1-3 days. However, the entire process from signing a contract to turning on the system typically takes 2-3 months, which includes design, permitting, installation, and utility interconnection.

Yes, solar installations require building permits and electrical permits in most US jurisdictions. Your installer typically handles all permitting. Some states have streamlined permitting processes. HOA approval may also be needed, though many states have solar access laws limiting HOA restrictions.

Properly installed solar panels should not damage your roof. Professional installers use mounting systems designed to protect roof integrity, and any penetrations are sealed with weatherproofing. A reputable installer will assess your roof condition beforehand.

Solar panels typically add value to your property - studies show homes with solar sell for 4-6% more on average. Owned systems stay with the house when you sell. If you have a solar lease or PPA, the new homeowner can usually assume the agreement.

NABCEP (North American Board of Certified Energy Practitioners) certification is the gold standard for solar installers in the US. NABCEP-certified installers have demonstrated advanced knowledge and experience. While not required, it's a strong indicator of quality and professionalism.

Look for NABCEP certification, positive customer reviews, and an established track record. Get at least 3 quotes to compare. Check that they offer comprehensive warranties and are properly licensed and insured. Ask about their experience with your roof type and local permitting requirements.

Buying (including with a solar loan) gives you the full benefit of the tax credit and maximum long-term savings. Leasing or a Power Purchase Agreement (PPA) means lower upfront costs but less total savings. Owned systems also add more value when selling your home.

Battery storage lets you use solar energy after dark and provides backup during outages. Costs range from $7,000-$15,000 for a typical home battery. It's especially valuable in areas without good net metering policies or where time-of-use rates make evening electricity expensive.