Solar Panels: Cost Guide & Installers

What Solar Panels Do for Your Home

Solar panels convert sunlight into electricity that powers your home’s lights, appliances, HVAC system, and increasingly, electric vehicles. A residential system typically includes solar panels mounted on the roof or ground, an inverter that converts direct current (DC) electricity into the alternating current (AC) your home uses, a mounting and racking system, wiring, and a monitoring setup that tracks how much power the system produces. Most homeowners stay connected to the electric utility grid, which allows excess solar production to be sent back to the grid, often through net metering, and lets the home draw power from the grid at night or on cloudy days when panels aren’t producing enough electricity.

The size of the system you need depends on your household’s electricity usage, roof space and orientation, sun exposure, and how much of your electric bill you want to offset. A home that uses 900 kWh a month will generally need a larger system than one using 500 kWh a month, all else being equal.

Types of Solar Panel Systems

Not every solar installation looks the same. The right setup depends on your roof, budget, and energy goals.

• Monocrystalline panels — the most common residential choice, known for higher efficiency and a sleeker black appearance, usually at a higher price per watt.
• Polycrystalline panels — a lower-cost option with slightly lower efficiency, often used when roof space isn’t a constraint.
• Grid-tied systems — connected to the utility grid with no battery, the most common and lowest-cost configuration.
• Hybrid systems — grid-tied but paired with battery storage for backup power during outages.
• Off-grid systems — fully independent of the utility grid, requiring battery storage and a larger system to cover all household needs. This is typically the most expensive option and uncommon for homes with grid access.
• Ground-mounted systems — installed on a rack in the yard instead of the roof, useful when roof space, shading, or roof condition rules out a rooftop array.

What Drives the Cost of a Solar Panel Installation

Several factors determine what a solar installation costs:

• System size — measured in kilowatts (kW), based on your energy usage and offset goals.
• Panel type and equipment quality — higher-efficiency panels and premium inverters cost more upfront.
• Roof condition and complexity — a steep roof, multiple angles, or the need for roof repairs before installation adds labor and material costs.
• Permitting and inspection fees — these vary significantly by city and county.
• Labor rates — installation labor costs differ by region and by contractor.
• Battery storage — adding a battery for backup power substantially increases total project cost.
• Available incentives — federal, state, and utility incentives can reduce net cost after installation, though eligibility and amounts change over time.

The table below shows typical national cost ranges for common system sizes. Actual pricing varies by location, equipment, and installer, and does not reflect any tax credits or incentives.

*Production estimates vary by climate, roof orientation, shading, and panel efficiency.

Solar Panels and Home Value

Homes with solar panel systems often sell at a premium compared to similar homes without solar, according to multiple industry and academic studies, though the exact impact depends on your market, system age, and whether the system is owned outright or financed through a lease or power purchase agreement. Appraisers and buyers generally view owned systems more favorably than leased systems, since a lease or loan tied to the panels can complicate a home sale and may need to be addressed as part of the transaction.

Maintenance and Lifespan

Solar panels have no moving parts and require minimal upkeep. Most manufacturers rate panels for 25 years or more of production, though output gradually declines over time, typically less than 1% per year. Routine maintenance includes occasional cleaning to remove dust, pollen, or debris; trimming nearby trees that cast shade on the array; and checking system output through a monitoring app or dashboard to catch any drop in performance early. Inverters generally need replacement once during the life of a solar array, often in the 10- to 15-year range for string inverters.

How to Choose and Hire a Solar Installer

A solar installation is a significant investment that affects your roof and your home’s electrical system, so it’s worth taking time to evaluate contractors carefully. Before signing a contract:

• Confirm the contractor is licensed and insured in your state, and ask to see documentation.
• Ask whether the installer or its technicians hold relevant industry certifications, such as NABCEP (North American Board of Certified Energy Practitioners).
• Request references from recent projects and, where possible, review examples of completed installations.
• Get a detailed written proposal that specifies equipment brand and model, system size, estimated production, and total price.
• Ask about workmanship coverage separately from the manufacturer’s warranty on the panels and inverter, and get the terms of both in writing.
• Compare more than one proposal, since pricing, equipment, and estimated production can vary significantly between contractors.
• Ask how the company handles permitting, utility interconnection paperwork, and post-installation inspections.

Watch for high-pressure sales tactics, contracts that require a large upfront deposit before permits are approved, and pricing that seems out of line with typical market rates for a system of that size.

How HomeMatchr Works

HomeMatchr helps homeowners compare their options before starting a solar project. Answer a few questions about your home and energy goals, and request up to 5 no-obligation quotes from independent contractors in the solar industry. Reviewing multiple quotes side by side makes it easier to compare pricing, equipment, and project timelines before you commit to a contractor. HomeMatchr is an advertising-supported service and may receive a referral fee when you connect with a provider.