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Top Solar Companies in Killeen, Texas

There’s no shortage of solar companies in Killeen. So we figured, why not save you some time? We researched the local residential solar installers and read through hundreds of reviews.
These residential solar companies made the cut because they do good work consistently. They understand Killeen’s solar scene, they’re responsive when issues pop up, and their customers tend to be happy. Worth a conversation if you’re serious about solar energy for residential homes.

Find the Best Solar Installers in Killeen, Texas

Showing 1 - 20 of 128 locations
7.2 mi

Solar CenTex review
1901 E FM 2410 Harker Heights, TX 76548, United States

With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Solar CenTex read more…
38.2 mi

Silver Electric and Solar review
11880 Hero Way West #301, Leander, Texas 78641, United States

With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Silver Electric read more…

41 mi

TriSMART Solar review
1611 Chisholm Trail Rd, Round Rock TX, 78681

With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, TriSMART Solar read more…

41.3 mi

Longhorn Solar review
3000 Joe Dimaggio Blvd, Round Rock TX, 78665

Our Expert Choice badge goes to Longhorn Solar, which concentrates on serving fewer than 1 state. With a foundation dating read more…

43 mi

Greenstar Power review
1000 Gattis School Rd STE 350, Round Rock, TX 78664, United States

With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Greenstar Power read more…

43.9 mi

Longhorn Solar review
4717 Priem Ln #704, Pflugerville TX, 78660

Our Expert Choice badge goes to Longhorn Solar, which concentrates on serving fewer than 1 state. With a foundation dating read more…

46 mi

IES Texas Solar review
15720 Vision Drive, Pflugerville TX, 78660

With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, IES Texas read more…

47 mi

Longhorn Solar review
1421 Wells Branch Pkwy. Ste. 110 Pflugerville, TX 78660

Our Expert Choice badge goes to Longhorn Solar, which concentrates on serving fewer than 1 state. With a foundation dating read more…

47.2 mi

TriSMART Solar review
2217 W Howard Ln, Austin TX, 78728

With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, TriSMART Solar read more…

53.3 mi

TriSMART Solar review
7801 N Lamar Blvd, Austin Texas, 78752

With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, TriSMART Solar read more…

53.6 mi

NuWatt Energy review
5900 Balcones Drive Suite 101, Austin TX, 78731

Our Expert Choice badge goes to NuWatt Energy, which concentrates on serving fewer than 2 states. With a foundation dating read more…

55.8 mi

Sunlux review
9225 Bee Caves Road, Building A Suite 101, Austin, TX 78733

With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Sunlux is read more…

56 mi

Sunlux review
8801 Tara Lane, Austin TX, 78737

With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Sunlux is read more…

56.3 mi

Solar Service review
1801 E 51st St STE 365, #250, Austin, TX 78723

With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Solar Service read more…

57.8 mi

Alba Energy review
1601 Rio Grande, Ste 300 Austin, TX 78701

With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Alba Energy read more…

58.1 mi

ATX Solar review
1401 Lavaca St #942 Austin, TX 78701

With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, ATX Solar read more…

58.1 mi

512 Solar review
1250 South Capital of Texas Highway Bldg 3, Suite 400, Austin, TX 78746

With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, 512 Solar read more…

58.5 mi

Smart Energy Solar review
1138, Gunter Street, Austin, Travis County, Texas, 78721, United States

With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Smart Energy read more…

58.6 mi

NRG Clean Power review
600 Congress Avenue, Austin TX, 78701

With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, NRG Clean read more…

59.7 mi

Green Power Energy review
2112 Holly St, Austin TX, 78702

With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Green Power read more…


How Much Can Residential Solar Panels Save You in Killeen, Texas?

There’s no simple answer to how much you’ll save with solar power for residential homes in Texas – it really depends on your situation. Your utility company’s billing structure matters, as does the size of the residential solar power system your roof can handle and how much electricity your household uses. Most installers will try to cover all your energy needs, but your actual savings depend on your home’s unique setup.

Before incentives, expect to pay somewhere between $15,000 and $30,000 for a typical residential solar installation in Killeen. The exact cost depends on your residential solar energy system size and energy requirements.

Want an estimate just for you? Fill out the form on our website, try a solar calculator, or consult with a couple of local residential solar installers for a personalized savings calculation.

Learn more about solar incentives and what makes Texas unique for residential solar.

Solar Financing Explained for Residential Solar Systems

You’ve got several ways to pay for solar panels:

  • Cash
  • Solar loans from installers
  • Personal loans
  • Cash-out refinance or HELOC
  • Solar leases or PPAs

Paying Cash: Cash gives you the best long-term savings and the lowest overall cost for your residential solar power system. But let’s be real – not everyone has $15,000 to $20,000 sitting in the bank. If you want to own your system but can’t pay up front, financing is your next option.

Getting a Loan: Personal loans, home equity lines, or installer-offered solar loans all work. Just watch out for the fine print – loans come with interest and fees. Many solar loans include dealer fees that can bump up your total residential solar installation cost by 20% or more (they offset this with lower interest rates). Smart move? Compare dealer fees and rates between different residential solar companies before signing anything.

Don’t skip this: ask for their cost per watt. That’s your real comparison tool when residential solar energy system sizes vary between installers.

Leasing or PPAs: Some businesses let you rent or buy power with no money down. It sounds great, doesn’t it? The catch is that you don’t own the panels, so you can’t get rebates or federal incentives. Also, the monthly payments to the solar company take money out of your savings.

Get detailed savings projections from installers before deciding. Even with financing costs, you’ll typically still pay less for electricity than you do now. Understanding all your options – including available federal and state programs – helps you make the smartest financial choice for your residential solar energy system.


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Texas Solar Incentives and Rebates

Solar in Texas is kind of a mixed bag when it comes to incentives. The state doesn't really step up with much, but you've got the federal credit doing most of the work, plus some local utility programs that can really help—if you happen to live in the right area. Let me walk you through what's out there.

1. Federal Solar Investment Tax Credit (ITC)

URGENT UPDATE: This credit expires December 31, 2025. You must have your system installed and operational by year-end to claim it.

This is where most of your savings come from in Texas. The feds give you 30% back on everything—panels, inverters, installation, the whole nine yards.

Right now, a typical 7 kW system in Texas is going for around $19,600 (that's October 2025 pricing). Take 30% off and you're down to about $13,720 out of pocket. You're saving close to $6,000 just from this one credit.

Same story everywhere: you've got to own the system—cash or financing, doesn't matter. Leases don't count. And you need enough federal tax liability to actually use it. If you don't owe enough in one year, it rolls over to the next.

The catch: The "One Big Beautiful Bill" signed in July 2025 ended this credit effective January 1, 2026. There's no phase-down, no extension—if you don't install by December 31, 2025, you're paying full price. Solar installations typically take 2–4 months from contract to completion, so if you're reading this in late 2025, you need to move fast.

2. Texas Solar Property Tax Exemption

This is honestly one of the better things Texas does for solar, and people don't always appreciate how much it matters. The state exempts solar systems from property tax assessment, and it applies everywhere in Texas.

Solar panels boost your home's value, sometimes substantially. Normally, that means higher property taxes, but Texas says you don't pay extra property tax on whatever value the solar adds.

Here's the thing: Texas property taxes are already pretty brutal—some of the highest in the nation. So, dodging that annual increase year after year? That's real money. Not as exciting as getting a big rebate check, but over 25 years, it adds up to thousands of dollars.

3. Local Utility Rebates

Alright, this is where it gets messy. Some Texas utilities offer solar rebates, some don't, and the ones that do can have wildly different programs. Plus, they change all the time, and funding runs out. Here's what's been available:

  • AEP's SMART Source Solar PV Program: If you're in American Electric Power's territory, they've offered rebates from $1,500 to $3,000 depending on system size. Worth checking if they still have money available.
  • Austin Energy: Austin's had a $2,500 rebate for systems 3 kW or larger, but you've got to take their solar education course first. Their program's pretty popular, which means funding can disappear fast. Definitely verify it's still active before you count on it.
  • New Braunfels Utilities: They've done rebates up to $3,000 for systems at least 3 kW, with the amount varying based on size and panel angle. Check current availability.
  • Oncor: They've run a program for systems between 3–15 kW paired with battery storage. Battery requirements are becoming more common with utility programs.

My advice on utility rebates: confirm directly with your utility that they're active and taking applications before counting on them. These programs appear, disappear, run out of money, change requirements—they're unreliable. If you get one, great. If not, you need to make sure solar still works for you without it.

What About Net Metering?

This is where Texas really drops the ball. There's no statewide net metering policy, which is pretty unusual. Some utilities offer it, many don't, and the ones that do often give you terrible rates.

What this means in practice: a lot of times in Texas, that excess power your panels produce during the day doesn't get credited back to you at full value. Some utilities buy it at wholesale rates (way less than you pay), and some won't buy it at all. It's honestly one of the weakest parts of going solar here.

The upside? Texas gets absolutely blasted with sun. And electricity rates have been climbing—deregulation means it's all over the place, but a lot of folks are paying pretty high rates. So even without good net metering policies, solar can still make financial sense.

What You're Actually Looking At

Let's say you're in an area without any utility rebates, which is pretty common. You're working with that 30% federal credit and the property tax exemption—but only if you act before the end of 2025.

That $19,600 system costs you about $13,720 after the federal credit. If you happen to be in an area with a utility rebate and can snag one, knock off another $1,500 to $3,000.

Starting January 1, 2026, that same system costs you the full $19,600 with no federal help.

Texas electricity rates are kind of all over the map—it depends on your provider, your plan, and where you live. If you're stuck with high rates, your payback might hit around 10–13 years with the current incentive. Cheaper electricity? Could stretch out to 15–18 years. Without the federal credit, add another 4–5 years to those timelines.

The lack of decent net metering stings, but Texas has killer solar production potential. West Texas, South Texas—those areas get incredible sun. Even in Houston with all the humidity and clouds, you can still pull good numbers. That strong production helps make up for the less favorable policies.

Just remember that federal credit only helps if you're paying federal taxes. If your tax bill is small, you won't get the full benefit right away. It does carry forward, but it's something to think about. Probably smart to run through your specific tax situation with your installer or an accountant before you sign anything.

Bottom line: If you're serious about solar in Texas, the deadline is December 31, 2025. After that, you're looking at significantly higher costs and longer payback periods.


Frequently Asked Questions

How Do We Rank Residential Solar Installers?

Picking a solar installer shouldn’t be a guessing game. We built our rating system to help homeowners make informed solar decisions and avoid common pitfalls in the industry.
Here’s how it works: 5-star system, plain and simple. Five stars means a company is legitimately excellent – the kind you’d recommend to your own family. One star? Run away. We wouldn’t touch them with a ten-foot pole, and neither should you. Our ratings pull from everywhere – EnergySage, SolarReviews, BBB, Google Reviews, Yelp, ConsumerAffairs, Trustpilot, the works. But we’re not just averaging star ratings like some algorithm. We read the actual reviews. Are they consistently delivering what they promise, or just occasionally getting lucky?

What Actually Matters When We Evaluate Residential Solar Companies?

  • Years in business. Five minimum. Non-negotiable. If a company’s been around less than that, they haven’t weathered any real challenges yet. And think about it – solar panels last 25-30 years. You need an installer who’s built their business model around supporting customers long-term, not just showing up for installation day and disappearing.
  • Local vs. national – and it’s not even close. Check the numbers yourself. Local residential solar installers consistently get better reviews than the big chains. Their reputation actually matters because word spreads fast in local communities. They know the permit process in Killeen specifically. They understand your local utility company’s quirks and requirements.
  • Hands-on experience. Residential solar energy companies that have hundreds of installations behind them move differently. They’ve seen every bizarre roof situation. They know exactly how to handle older homes with outdated electrical systems. First-time installers? They’re figuring it out as they go – on your roof, with your money.
  • Who’s actually doing the work? Some companies use their own crews. Others outsource everything to whoever’s available. Guess which ones deliver better quality? When residential solar energy companies employ their own installation teams, those workers know they’re accountable. Something breaks later? You call the company, and they send the same team that did the original work. With subcontractors, you’re lucky if you can track down who actually touched your system.
  • What people actually say. We check SolarReviews, BBB, Google, Yelp – anywhere real customers leave feedback. But star ratings alone don’t tell the whole story. How does a company handle a one-star review? Do they fix the problem or argue with the customer? Customer reviews show what really happens after you sign the contract.
  • Licenses and certifications. Should be obvious, but apparently it’s not. Licensed, insured, NABCEP certified if possible (that’s the actual gold standard for residential solar panel installers, not marketing fluff). Companies cutting corners on basic credentials – what else are they skimping on?
  • Equipment quality swings wildly. Good residential solar energy companies stock equipment from solid manufacturers – SunPower, LG, Panasonic, Canadian Solar, brands like that. Lower-tier installers? They push whatever vendor gave them the best wholesale price this quarter, regardless of quality. Ask them straight up: “What brands do you install and why those specifically?” Watch how they answer. That’ll tell you if they prioritize system performance or profit margins.
  • Payment options. The best residential solar companies give you real choices – loans, leases, PPAs – and actually walk you through what makes sense for your situation. Huge red flag: companies that only offer one financing option. Usually, it means it’s structured to maximize their profit, not your savings.
  • Warranties separate the pros from the amateurs. Look for 10-12 years on workmanship, minimum. Strong performance guarantees. Your residential solar power system costs serious money. It better have protection beyond the basic manufacturer’s warranty on the panels themselves.

Our Classification System: What the Tags Mean?

We label companies to save you research time:

  • Expert Choice: Long-established companies with extensive workmanship warranties and in-house installation crews exclusively. The veterans with the strongest track records.
  • Trusted Provider: Multi-state operations that still manage to deliver quality work. Good local reputation, positive customer feedback. They handle installations directly instead of outsourcing.
  • Market Leader: Tons of verified reviews, customers are consistently happy. Proven track record of consistent, reliable service.

Stick with “Expert Choice,” “Trusted Provider,” or “Market Leader” tags. They earned those classifications through actual performance, not by paying for better placement. The difference matters more than you’d think.

What to Look for in a Residential Solar Company?

Shopping for solar energy for residential use? Here’s what separates good residential solar companies from ones you’ll regret hiring:

  • Check credentials first. NABCEP certification is what you want to see – it’s the real deal in solar. Beyond that, make sure they’re licensed, bonded, and insured for your area. Using subcontractors? Those crews better have proper credentials, too, not just some guys with ladders.
  • Experience isn’t optional. Five years minimum in the business. Don’t be someone’s practice run. Ask straight up: “How many residential solar energy systems have you installed?” A confident residential solar panel installer will tell you the number and walk you through their equipment choices without hesitation. They should explain how they’ll help you tap into available incentives – and if they can’t clearly explain their warranties, that’s a red flag.
  • Communication tells you everything. Here’s a test: Ask specific questions. “Why do I need this many panels?” “Break down the costs based on my actual usage.” “What brands are you proposing and why?” “What’s your per-watt price?” Good residential solar installers answer directly. Sketchy ones dance around numbers or pressure you to sign fast. Trust your gut – if they’re dodgy with answers now, imagine dealing with them when something breaks.
  • One more thing on communication: Ask about their subcontractors. Who’s actually doing the work? How are they supervised? You deserve real answers.
  • Your roof comes first. Any residential solar panel installer worth their salt will thoroughly inspect your roof before talking panels. They should tell you if repairs are needed upfront – not after they’ve torn into your shingles. Who pays if there’s damage during installation? Get that in writing. And yeah, talk about how it’ll look. Panel placement, where vents end up, all that matters when you’re staring at it every day.
  • Do your homework on their reputation. Reviews matter, but dig deeper. Ask for references from recent customers. Even better – if you know anyone who’s gone solar, ask them who they used. Personal recommendations beat online reviews every time because people are brutally honest with friends.
  • Always get multiple quotes. Always. Prices swing wildly between residential solar companies – sometimes by thousands. Here’s the key: calculate the cost per watt for each proposal. That’s your apples-to-apples comparison, even if residential solar energy system sizes differ slightly. Get three quotes minimum. You’ll quickly learn what’s fair pricing and what’s someone trying to fleece you.

Should You Choose a Local Solar Installer or a Big National Company?

Go local. It makes a difference.
Small local residential solar companies consistently get better reviews than big national operations. The reason is simple: solar energy for residential use is inherently a local business. Providing good customer service across multiple states from a central office? Nearly impossible.
Local residential solar energy companies have skin in the game. They know your area’s incentives and regulations inside and out. They care about their reputation because word spreads fast in local communities. And they’re not trying to hit some corporate sales quota – they want you to be happy so you’ll refer your neighbors.
National companies will pitch their “financial stability” and “consistent quality across locations.” Don’t buy it. When something goes wrong (and eventually, something always does), you want a local company that answers their phone and can send someone over – not a call center that routes you to whoever’s available.
Find a local residential solar panel installer that checks all your boxes and specializes in your area. You’ll be happier for it.

What Does a Residential Solar Installation in Killeen, Texas Look Like?

So you’ve approved your residential solar power system design. What happens next?

  • They’ll dig into your energy use. Pull out your utility bills from the last year – installers need to see your actual consumption in kWh. This isn’t busywork. These numbers determine everything: how much you’ll save, when you’ll break even, and what size system makes sense for your home.
  • Expect a home energy audit. Good residential solar energy companies don’t skip this. They’re looking at your consumption patterns, when you use the most power, all that. It’s how they properly size your system instead of just slapping panels up there and hoping for the best.
  • Your roof gets scrutinized. Is it in decent shape? Facing the right direction? They’ll inspect everything – structural integrity, orientation, shading issues. This determines where panels go and how they’ll run the wiring without making your house look like a science experiment.
  • Design gets finalized. They’ll show you renderings of what your residential solar energy system will actually look like on your roof, plus production estimates and costs specific to your situation.
  • Paperwork time. Killeen requires permits for residential solar installation. The good news? Your installer handles this headache. If they’re telling you to pull permits yourself, find a different company.
  • The waiting game. Here’s the reality: start to finish, you’re looking at about 3 months. Permits take time. Inspections take time. Getting utility approval takes time. The actual installation on your roof? That’s usually done in 3 days, maybe longer if your roof is complicated or the system is big. Most of those 3 months are just waiting on bureaucracy.
  • Installation day arrives. The crew shows up, gets everything installed, and cleans up after themselves. Professional crews leave your property cleaner than they found it – you shouldn’t see a single zip tie or scrap of wire left behind. Just new panels on your roof.
  • Inspection happens. The city sends someone out to verify everything meets code and safety regulations. This is required – no way around it. Once you pass, you’re almost there.
  • Grid connection is the final step. Your residential solar power system gets wired to the utility company, you apply for interconnection, and they’ll inspect it, too. Some residential solar panel installers handle this entire process for you; others make you deal with the utility. Ask upfront who’s doing what. Once all the approvals are in? Flip the switch. You’re making your own power.

Find the Best Solar Panel Installation Companies for Homes Nearby

Andy Worford
Andy Worford

Founder and Chief Content Officer at Resident Solar Power. Andy's been following solar policy and technology long enough to know which trends matter and which ones are just noise. He writes about photovoltaic systems, policy changes, and green tech innovations - basically, anything that helps homeowners make smarter solar decisions.

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