Solar panel costs for homeowners in 2026

What does a solar system cost by size?

System size is the single biggest driver of total cost. Most American homes install between 6 and 8 kilowatts, which is typically enough to cover a large share of a household's electricity use. Here is what those systems cost before incentives in 2026:

Bigger is not automatically better. The right size is the one that matches your household's electricity consumption. Oversizing means paying for panels that produce power you cannot use or sell at a good rate, especially if your utility pays you less for exported electricity than it charges you to import it. A good installer sizes the system from 12 months of your electric bills, not from a guess. You can get a head start by using our solar savings calculator or a state-level savings calculator to see what size makes sense for your usage and address.

Where does the money actually go?

Here is the part that surprises most homeowners: the panels themselves are only about 12 percent of the total system cost. You are mostly paying for everything around them — the equipment that makes the power usable and the skilled labor to install it safely.

Industry people call the panels, inverter, and racking the "hard costs" and everything else "soft costs." Soft costs are where prices vary most between installers and regions. Two companies selling the exact same panels can differ by 30 percent purely on labor, permitting complexity, and overhead. That is why comparing per-watt pricing across multiple quotes matters far more than hunting for the cheapest panel brand.

Why do solar prices differ from state to state?

Solar is not priced like a product — it is priced like a construction project, and construction costs are local. Labor rates, permitting rules, and inspection requirements differ dramatically across states, and they can move a quote by thousands of dollars.

Competition matters too. States with many active installers tend to have lower prices because companies compete on quotes. States with complicated utility interconnection processes or aggressive local permitting fees tend to cost more. Local incentives also change the picture: some states and utilities still offer rebates or performance-based credits that reduce your out-of-pocket cost, even though the federal residential credit is gone. Our state-by-state solar guides break down local pricing, incentives, and utility rules so you can see where your state stands.

What extra costs can show up on your final bill?

A quote is not always the whole story. Before you sign, ask about the extras that commonly appear as line items or change orders:

• Roof work. Panels last 25 to 30 years, so if your roof has fewer than 10 years of life left, most installers will recommend replacing it first — otherwise you will pay thousands later to remove and reinstall the panels.
• Electrical panel upgrades. Older 100-amp panels often need to be upgraded to 200 amps to handle a solar system safely. This typically costs $1,500 to $3,000.
• Battery storage. A battery is optional but increasingly popular, especially where utilities pay little for exported power. A typical installation runs $13,000 to $16,500 per unit. See our battery guide for sizing and pricing detail.
• Critter guards and monitoring. Small add-ons that protect wiring from squirrels and let you track production — worth asking about up front rather than discovering them later.

None of these are hidden fees in the scam sense — they are legitimate project costs. The red flag is an installer who refuses to put them in writing before you sign.

How do financing choices change what you actually pay?

Most people do not pay cash, and the financing method changes both the total cost and who captures the incentives:

• Cash purchase. The cheapest option overall. No interest, no dealer fees, and you own the system and every kilowatt-hour it produces from day one.
• Solar loans. Higher total cost because of interest, but often still cash-flow positive from month one if your loan payment is less than your old electric bill. Watch for dealer fees, which can add 20 to 30 percent to the sticker price on some loan products.
• Leases and PPAs. Little or no money down, but you do not own the system — you rent your roof out to a solar company. Here is the important 2026 wrinkle: while the 30 percent residential credit (Section 25D) is gone for owner-purchased systems, leased and PPA systems can still capture federal value through the commercial credit (Section 48E), generally through the end of 2027. That means lease offers may look surprisingly competitive this year — but read the escalation clauses, because payments that rise 3 percent a year for 25 years add up.

Is the 30 percent federal tax credit still available in 2026?

No. The 30 percent residential solar tax credit (Section 25D) ended for homeowner-owned systems installed after December 31, 2025, under the One Big Beautiful Bill Act signed on July 4, 2025. Purchases in 2026 get a 0 percent federal residential credit. If your system was installed in 2025, you can still claim the credit on your taxes using IRS Form 5695 — the phase-out does not retroactively punish 2025 installs.

This is the single most important cost fact for 2026 buyers, because a huge amount of solar pricing content on the internet was written before the change and never updated. If a calculator or a sales quote subtracts 30 percent for a system you would buy today, its math is wrong and its payback estimates are wrong too. We wrote a dedicated guide to the expired solar tax credit covering exactly what ended, what survived, and what it means for your wallet. Our payback period guide also shows the realistic 2026 math without the credit.

How do you get a fair, accurate quote?

Getting a good price is mostly about process, not luck:

1. Get at least three quotes. Prices vary enormously between installers in the same zip code. Three quotes is the minimum; five is better.
2. Compare per-watt pricing, not just totals. A $24,000 quote for a 9 kW system ($2.67/W) beats a $21,000 quote for a 7 kW system ($3.00/W).
3. Check that the math uses 2026 incentives. Any proposal still subtracting the expired 30 percent credit should be sent back for correction.
4. Ask what is included. Roof work, panel upgrades, monitoring, and warranties should be itemized — not discovered on installation day.
5. Check the equipment. You do not need the most expensive panels, but you should know what inverter brand you are getting and how long its warranty lasts.

For an independent baseline before you talk to any salesperson, check our detailed solar cost guide and run your numbers through the calculator — you will walk into every sales meeting knowing what a fair price looks like.