How Much Do Solar Panels Cost to Install? (2026)
Panel prices are flat to slightly lower than a year ago — but the 30% federal tax credit that knocked roughly $9,000 off a typical install ended for systems you own. The sticker looks the same and the out-of-pocket number went up. Here's what solar actually costs in 2026 and what moves your quote.
Typical range
$27,500–$34,000
about $2.60 per watt before incentivesMost homeowners pay around
$31,135
12 kW system, U.S. national average, before any incentives.
Cost by system size (before incentives)
4 kW
Small home, low usage — about $2.89/W
$10,000–$13,000
6 kW
Efficient 1–2 person household
$15,000–$18,000
8 kW
Average U.S. home
$20,000–$24,000
10 kW
Larger home with A/C load
$25,000–$30,000
12 kW
Big or all-electric home — the current average system
$30,000–$35,000
15 kW
Best price per watt, about $2.47/W
$36,000–$42,000
Common add-ons
Home battery storage
Backup power; helps where net metering is weak
$10,000–$18,000
Main electrical panel upgrade
Often needed on older homes
$1,500–$4,000
Roof repair or replacement first
Worth doing before panels go on an aging roof
varies
Bigger systems cost less per watt, and your state matters enormously — the same system can run around $22,000 in one state and north of $40,000 in another, because of labor, permitting, competition, and utility rules.
What moves your price
System size
Sized off twelve months of your actual electric usage and your roof's sun exposure — not your square footage. Bigger systems cost more overall but less per watt.
Panel & inverter tier
Premium high-efficiency panels and microinverters cost more up front but produce more on a small or partly shaded roof.
Roof complexity
Steep pitches, multiple planes, tile or metal roofing, and lots of vents or skylights all add labor time.
Electrical work
An older main panel often needs upgrading before it can safely carry solar — budget $1,500–$4,000 if yours does.
Permitting & interconnection
Some jurisdictions and utilities are fast and cheap; others are slow and expensive. A local installer will know your area's reputation.
How you pay for it
Cash, loan, lease, and power purchase agreements produce very different lifetime costs — and since the federal credit changed, this is now one of the biggest levers on your real price.
Common questions
Is the 30% federal solar tax credit still available in 2026?
Not for systems you own. The Section 25D Residential Clean Energy Credit was terminated after December 31, 2025 by the One Big Beautiful Bill Act, signed July 4, 2025. It had originally been scheduled through 2032.
My install started in 2025 but finished in 2026 — do I qualify?
No. Under the credit's rules an expenditure counts as made when the original installation is completed, so a system finished after December 31, 2025 falls outside it. There is no transition rule. Talk to a tax professional about your specific situation.
What about leases and power purchase agreements?
Under a lease or PPA a third party owns the system and claims a different, commercial credit rather than the homeowner credit. Whether any of that reaches you depends entirely on the contract terms, and those arrangements have their own trade-offs — you don't own the system, long-term savings are smaller, and it can complicate selling the home. Have a tax professional and, ideally, an attorney look at the contract before you sign.
Did solar get more expensive in 2026?
The equipment didn't — prices are flat to slightly down. But losing the 30% credit raised the net out-of-pocket cost for cash and loan buyers by roughly a third.
How much does home solar cost?
Nationally about $2.60 per watt before incentives. The average installed system is around 12 kW, putting a typical project near $31,000, with most landing between $27,500 and $34,000.
How long do solar panels last?
Most panels carry 25-year performance warranties and keep producing beyond that. Inverters usually need replacing once, around year 10–15.
Do I need a battery?
No. A battery adds backup power and helps where net metering is weak, but it also adds $10,000 or more. Many homeowners start with panels and add storage later.
Is solar still worth it without the credit?
Often yes, just less dramatically — it's now a straightforward long-term investment rather than a heavily subsidized one. The case is strongest where electricity rates are high and sun exposure is good. Ask any installer to show you the payback math on your actual utility bill before you decide.
The only number that matters is your quote.
These are national averages. Get real, no-pressure estimates from trusted local solar installers and compare for yourself.
Find local solar installersFigures are 2026 U.S. national averages compiled for general guidance and will vary by region, scope, and contractor. They aren't a quote.