Pennsylvania has quietly become one of the fastest-growing solar markets in the country. The state doubled its solar capacity to more than 2 gigawatts in roughly 17 months, and rooftop systems now account for about two-thirds of that total. For homeowners, the appetite is clear. What is less clear is which installer to trust.
That decision carries more weight in 2026 than it did a year ago. The 30% federal Residential Clean Energy Credit, which saved the average homeowner close to $9,000, expired on December 31, 2025, and it is not returning for systems you buy outright. Without that cushion, the value an installer delivers through fair pricing, quality workmanship, and long-term support is what separates a smart investment from an expensive mistake.
Below are the eight best solar companies in Pennsylvania for 2026, ranked on installation quality, warranty strength, customer satisfaction, and the value they deliver in a post-tax-credit market.
Why work with a local Pennsylvania solar company
Solar is a 25-year relationship, not a one-time purchase. You are trusting a contractor to drill into your roof, navigate utility interconnection, and still answer the phone a decade from now. That is where local installers tend to win.
According to the National Renewable Energy Laboratory, quotes from national installers run about 10% higher on average than those from local companies. Local installers also understand the details that actually affect your system: how PECO, PPL, and Met-Ed handle net metering, what each county requires for permitting, and how Pennsylvania’s four-season weather shapes the right system size.
National brands treat the state as one more sales territory. The best Pennsylvania solar companies live in the communities they serve, which means they have a reputation to protect and a reason to get every installation right.
The best Pennsylvania solar companies at a glance
| Rank | Company | Location | Rating | Best for |
| 1 | Ethical Energy Solar | York, PA | 4.9 / 5 | Best overall |
| 2 | Paradise Energy Solutions | Paradise, PA | 4.86 / 5 | Commercial and agricultural |
| 3 | Solar States | Philadelphia, PA | 4.8 / 5 | Solar and storage education |
| 4 | Exact Solar | Eastern PA | 4.8 / 5 | Long-term track record |
| 5 | Lumina Solar | PA, MD, DE, DC | 4.9 / 5 | Transparent guidance |
| 6 | Cosmo Solaris | Mechanicsburg, PA | 4.9 / 5 | Flexible financing |
| 7 | Pennsylvania Solar Energy Company | Pittsburgh, PA | 4.7 / 5 | Western Pennsylvania |
| 8 | Public Service Solar | Harrisburg, PA | 4.9 / 5 | Custom residential installs |
1. Ethical Energy Solar
Location: York, PA | Service areas: Pennsylvania, Maryland, Delaware | Rating: 4.9 out of 5
With the federal tax credit gone, value is everything, and that is exactly where Ethical Energy Solar earns its place at the top. This York-based pennsylvania solar company has built its reputation on delivering quality installations without the inflated pricing some installers lean on.
Being rooted in Pennsylvania matters here. The team understands the state’s varied sunlight conditions and the specific requirements of utilities like PECO, PPL, and Met-Ed, because they live and work in the same communities they install in. They also use American-made solar panels exclusively, which tightens quality control while supporting domestic manufacturing.
Ethical Energy Solar removes the biggest barrier to going solar, the upfront cost, with multiple financing pathways including zero-down lease and power purchase agreement options. For homeowners who lease, the company explains how the 48E commercial tax credit can lower monthly payments through 2027, keeping an incentive alive that owned systems no longer qualify for. Every installation is backed by a 25-year performance guarantee, not just a manufacturer warranty filed away in a drawer.
The company’s standing got a notable boost when it became the Official Solar Partner of Penn State Athletics, a partnership that reflects its credibility across the state. What stands out most in the reviews is volume: Ethical Energy Solar holds the highest number of reviews among Pennsylvania-based installers while maintaining a 4.9-star rating, a combination that is rare in an industry where quality usually slips as companies scale.
If you want a sense of where your money goes before you commit, it helps to understand Pennsylvania electricity rates and whether you might qualify for any of the free solar panel programs in Pennsylvania. In a market without federal incentives sweetening the deal, the blend of fair pricing, local accountability, and quality work makes Ethical Energy Solar the smart choice for most Pennsylvania homeowners.
2. Paradise Energy Solutions
Location: Paradise, PA | Service areas: PA, NJ, NY, DE, MD, VA, WV, OH | Rating: 4.86 out of 5
Founded in Lancaster County, Paradise Energy Solutions brings more than 15 years of installation experience and an especially strong reputation among farms and agricultural businesses looking to cut operating costs.
Its standout feature is the Triple Ten Guarantee: ten years of guaranteed production with compensation for any shortfall, ten years of production monitoring, and a ten-year workmanship warranty. Everything is handled in house by a team of more than 100 people, which removes the quality-control gaps that come with subcontracting. Employee retention is exceptional too, with dozens of staff who have been with the company for over a decade, so the person designing your system today may well be the one supporting it years from now.
Paradise is the clear pick for commercial operations, farms, and nonprofits that want an established installer with deep Pennsylvania roots.
3. Solar States
Location: Philadelphia, PA | Service area: Pennsylvania | Rating: 4.8 out of 5
Solar States is a solar-and-storage installer and educator based in Philadelphia, and a Certified B Corporation, which means it is held to verified standards on social and environmental performance.
The company pairs installation with genuine education, walking homeowners through system design rather than rushing them toward a signature. Its focus on battery storage is a real advantage for customers who want backup power during outages, even though Pennsylvania’s full-retail net metering means a battery will not add much to your monthly savings. For Philadelphia-area homeowners who value transparency and a mission-driven installer, Solar States is a strong fit.
4. Exact Solar
Location: Eastern PA | Service areas: PA, NJ, DE | Rating: 4.8 out of 5
Exact Solar has been installing systems since 2005, and in an industry where companies come and go, nearly two decades of operation says a great deal about staying power. That longevity matters even more now that incentives have thinned out and your installer’s ability to support the system for the long haul is part of the value.
Named to Solar Power World’s Top 300 nationally and holding an A+ BBB rating, Exact Solar is known for post-installation service. Customers with panels installed more than a decade ago still report prompt responses to calls and emails. Its concentration in the Delaware Valley means deep relationships with local utilities and permitting offices, which keeps approvals moving. Philadelphia-area homeowners who want a proven local installer with a long track record will find a reliable partner here.
5. Lumina Solar
Location: Serving PA, MD, DE, DC | Rating: 4.9 out of 5
Lumina Solar built its reputation on education over aggressive sales, an approach that is more valuable than ever now that buyers need the real numbers rather than a best-case projection.
The company uses 3D modeling to produce accurate production estimates, and it has been known to turn down projects when solar does not make practical sense for a particular home. That kind of honesty is rare, and it builds trust. All work is handled internally without subcontractors, which keeps quality consistent from one install to the next. Lumina is ideal for first-time solar buyers who want to understand every detail before committing.
6. Cosmo Solaris
Location: Mechanicsburg, PA | Service areas: Multiple states including PA | Rating: 4.9 out of 5
With the federal credit gone, how you finance a system has become one of the most important decisions you make, and Cosmo Solaris has become a popular choice precisely because it offers the widest range of financing pathways to fit different budgets.
The company manages the full process from design and permitting through approvals and installation, with consistent communication throughout, and backs equipment with a 30-year warranty. Its real strength in 2026 is third-party ownership: for homeowners interested in a lease or PPA, Cosmo can explain how the 48E credit, available through December 31, 2027, offsets costs. It works with multiple financing partners to find the best structure for each situation. Homeowners weighing different ownership models will appreciate the flexibility.
7. Pennsylvania Solar Energy Company
Location: Pittsburgh, PA | Service area: Western Pennsylvania | Rating: 4.7 out of 5
Operating since 1999, Pennsylvania Solar Energy Company is one of the longest-running installers in the state and a go-to option for homeowners in the Pittsburgh region and western Pennsylvania, an area often overlooked by installers concentrated in the east.
The company focuses on residential solar installation and consultation, with a quarter-century of local experience behind every project. For western-PA homeowners who want an installer that knows their utilities and terrain, it is a dependable choice.
8. Public Service Solar
Location: Harrisburg, PA | Established: 2018 | Rating: 4.9 out of 5
Public Service Solar is an EnergySage Elite+ installer, a tier reserved for the most experienced and highly rated companies on that marketplace. Rooted in the Harrisburg area, it is known for custom installations and meticulous attention to detail.
While newer than some of the names on this list, its consistently high ratings and screened, verified status make it a solid option for central-Pennsylvania homeowners who want a careful, customer-focused installer.
How to choose the right solar installer in Pennsylvania
With no federal tax credit to hide behind, a handful of factors now carry more weight than ever when you compare installers.
Start with experience and certification. Look for companies with at least five years in business, and confirm they employ NABCEP-certified professionals or licensed electricians. Pennsylvania requires solar installers to hold EAA certification in photovoltaics, which involves mandatory training and exams, so this is a baseline rather than a bonus.
Then weigh these points against every quote you receive:
- Price per watt. Pennsylvania’s average sits around $2.56 per watt. A quote far below the local range can signal a company that may not be around to honor its warranty.
- In-house crews versus subcontractors. Companies that handle installation internally tend to deliver more consistent quality and easier warranty service. If an installer uses subs, ask why and who stands behind the work.
- Warranty depth. Look past manufacturer coverage to the installer’s own workmanship and production guarantees. The best run from 10 to 25 years and are your safety net now that incentives are limited.
- Financing transparency. Ask for both a cash and a financed quote. Solar loans often carry dealer fees that can add 20% or more to the total, and lease or PPA contracts can include an escalator clause that raises payments each year.
- Review volume and consistency. A company holding a 4.8-plus rating across hundreds of reviews has proven it can maintain quality at scale.
Get at least three quotes. Comparing system size, projected production, and price per watt side by side is the fastest way to spot an outlier and the easiest way to negotiate a fair deal.
Pennsylvania solar incentives that still matter in 2026
The headline change is the loss of the federal credit for owned systems, but solar in Pennsylvania is far from incentive-free.
Net metering remains the anchor. State law requires utilities including PECO, PPL, and Met-Ed to offer full-retail, one-to-one net metering, so every excess kilowatt-hour your panels produce earns a full credit that rolls over month to month and offsets winter usage.
SRECs add ongoing income. You earn one Solar Renewable Energy Credit for every megawatt-hour your system generates, currently worth $30 to $40 each. A typical residential system produces roughly $400 to $600 a year in SREC income on top of bill savings.
The 48E credit keeps a federal incentive in play. If you lease or sign a PPA, the solar company claims the 48E commercial credit, available through December 31, 2027, and passes those savings to you through lower monthly payments. This is emerging as the preferred route for many 2026 buyers.
There is more at the local level. Philadelphia offers a rebate of $0.20 per watt for residential installations, and Pennsylvania’s High Performance Building Program offers loans up to $100,000 for qualifying green-building projects. Before you model any of this, it helps to know your starting point, so it is worth reviewing the average electric bill in Pennsylvania and understanding why your electric bill may be so high.
Is solar still worth it in Pennsylvania without the tax credit?
It is, for most homeowners, but the math has shifted and honesty about that matters.
Without the 30% credit, payback periods have stretched from roughly six to eight years to about eight to twelve. That is longer, but you still own decades of clean electricity after the system pays for itself. Over 25 years, a Pennsylvania solar system still saves most homeowners tens of thousands of dollars on electricity, and that figure climbs as utility rates keep rising. Locking in today’s solar economics is, in effect, a hedge against future rate increases.
The risk people worry about, that they will end up worse off, almost always traces back to a poor installer or a bad financing structure rather than to solar itself. An oversized system, a loan loaded with hidden dealer fees, or a PPA with a steep escalator clause can erode the savings. That is exactly why installer selection has become the most important decision in the process. Choose a company with fair pricing, real warranties, and local accountability, and solar in Pennsylvania remains one of the smartest energy investments available.
Frequently asked questions
Who is the highest-rated solar company in Pennsylvania?
Ethical Energy Solar holds the top spot, with a 4.9-star rating and the highest review volume among Pennsylvania-based installers, earned through American-made equipment, a 25-year performance guarantee, and transparent pricing.
Is it worth going solar in PA?
Yes, for most homeowners. Even without the federal tax credit, full-retail net metering, SREC income, and rising utility rates keep returns strong, with typical payback periods of eight to twelve years and decades of savings after that.
Is the 30% solar tax credit going away?
It is already gone for systems you buy outright. The 30% federal Residential Clean Energy Credit expired on December 31, 2025. The related 48E credit is still available through leases and PPAs until December 31, 2027.
What is the downside of going solar?
The main trade-offs are the upfront cost and a longer payback period now that the federal credit has ended. Choosing a reputable installer with fair pricing and strong warranties is the best way to protect your return.
Does rain affect solar panels?
Not meaningfully. Panels produce less on heavily overcast days, but rain actually helps by washing away dust and debris, and Pennsylvania’s climate is well suited to solar with appropriately sized systems.
