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Best 5 Solar Companies in Knoxville, TN

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Written By Max Peterson|Last Updated: April 18, 2024

With Knoxville's clear skies and little rainfall, it's an ideal area for families and businesses aiming to harness the added sunlight by buying panels from one of the best solar companies. Local homeowners might go for solar to break free of high power costs from sources like nuclear. A skilled team can help you set up and tune a system that fits your energy needs without being too expensive. In this article, we'll show you Knoxville's best solar installers and offer advice for your company choice, so you can find the ideal one for your home.

Best High-Efficiency System
4.8
  • Builds custom, high-efficiency solar systems suited to each home
  • Extensive coverage area throughout the country
  • Offers energy storage and EV charger add-ons

Top Knoxville Solar Companies

Solar Alliance, LLC Logo

Solar Alliance

4.1/5
Based on 18 customer reviews.

Services Offered

Skilled RepairsCommunity Solar ProjectsPanel Installation

Highlights

  • Prompt service delivery
  • Reliable customer support
  • Clear pricing policy
3709 Martin Mill Pike, Knoxville, TN 865-309-4674 solaralliance.com
Carolina Mountain Solar Logo

Carolina Mountain Solar

4.7/5
Based on 13 customer reviews.

Services Offered

Panel Installation

Highlights

  • Informative resources
  • Clear pricing policy
  • Reliable customer support
114 Depot St, Murphy, NC 828-835-0015 carolinamountainsolar.com
Sundance Power Systems Inc Logo

Sundance Power Systems

4.6/5
Based on 50 customer reviews.

Services Offered

Battery StorageOff-Grid Solar SystemsConsultationFinancing AssistanceCleaning And MaintenanceSkilled RepairsPanel InstallationGrid-Tied Solar SystemSolar Carports

Highlights

  • Reliable customer support
  • Informative resources
  • Prompt service delivery
11 Salem Hill Rd, Weaverville, NC 828-645-2080 sundancepower.com
Smart Solar Logo

Smart Solar

4.7/5
Based on 10 customer reviews.

Services Offered

Panel InstallationConsultation

Highlights

  • Free quotes
  • Informative resources
  • Clear pricing policy
1 Haywood St, Asheville, NC 828-575-5055 learnaboutsolar.com

More Local Solar Companies

Rhino Renewables Solar & Electric

User Reviews: 4.6/5 

340 Merrimon Ave
Asheville, NC 28801

R A Thomas Electric

User Reviews: 4.2/5 

20 Battery Park Ave #900
Asheville, NC 28801

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

Ranking Methodology

Our team has meticulously studied dozens of solar contractors near Knoxville, emphasizing the following criteria:

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Facts about Knoxville
Average Max Temp:67°F
Solar Payback Period:12.1 years
Average Daily Sunlight:57%
Homes Powered by Solar:1,199
Average Annual Energy Bill:$1,068
Solar Power per Capita Percentile:48.0%

Expert Tips By

This Old House empowers homeowners with the knowledge and tools they need to tackle various projects and navigate the complexities of homeownership.

Benefits of Solar Energy

Solar energy offers multiple advantages that will enhance your home for years to come.

  • Lowered energy bills: You can avoid the added cost of grid-tied power by creating some electricity at home. Plus, many states provide net metering which can allow you to sell your unused energy back to help pay for your energy bill.
  • Better energy independence: Solar panel systems can keep your home functioning through blackouts and emergencies. You can use your solar energy anytime with an optional battery storage system.
  • Reduced carbon footprint: The sun is a highly abundant clean energy source, meaning you can reduce or eliminate your home's dependence on fossil fuels.

What Solar Incentives Are Available to Knoxville Homeowners?

Tennessee agencies and electric companies offer several solar incentives to help offset your solar system costs. Here's a breakdown of eligible solar programs where you live.

Incentive Type: Property Tax Incentive

Incentive Amount:

Depends upon sector

Incentive Type: Personal Tax Credit

Website: ecowatch.com

Incentive Amount:

30% federal tax credit for systems placed in service after 12/31/2021 and before 01/01/2033. Good for: solar water heat, solar photovoltaics, biomass, geothermal heat pumps, wind (small), fuel cells using renewable fuels.

How To Choose the Best Solar Company in Knoxville

The more informed your provider search is, the better your solar installation will ultimately perform. Consider each of these elements in your business search.

Licensing and Training

Tennessee requires any solar energy project valued at $25,000 or higher to be overseen by a licensed "prime contractor." The prime contractor is responsible for hiring licensed subcontractors as required. Even if a project doesn't cross the $25,000 value threshold, you will still need a master electrician or electrical journeyman to handle permit work. Solar companies can also earn accreditations from trade groups and standards organizations. The most respected ones in the industry come from the NABCEP. Most company websites will prominently display earned credentials, but you should also ask your estimator for more information.

Cost of Solar Panels in Knoxville

Different solar panel types look and perform differently. Monocrystalline panels cost more than other options, but they generate the most power and generally have the highest quality. Polycrystalline panels produce less power, but start at a more budget-friendly price point. Thin-film panels work well for small projects like RVs and sheds, but they're not ideal for larger installations due to their low performance.

You can also add battery backups and electric vehicle (EV) chargers. These will increase your total installation cost, but they can enhance your solar system's performance. Not every solar contractor offers these add-ons, so look for a company that sells them if it's essential for you.

If you're a resident of Knoxville and are considering getting a five-kilowatt solar energy system, you could expect to pay about $17,900 for materials and labor. See more information on specific component and solar panel costs in the table.

Solar Panel CostAverage Cost
Solar Monocrystalline$1,124
Solar Polycrystalline$877
Thin-Film$513
Solar Battery$719
Solar Home EV Charger$2,697

Financing Solar Energy in Knoxville

There are many ways to pay for new solar panels, and the right one will minimize your overhead. A few of the most common options include power purchase agreements (PPAs), cash payments, leases, and loans. Though it requires a large up-front payment, cash is the most economical choice because it doesn't accrue interest and qualifies you for incentives. Solar loans are the next best option. As with a home or auto loan, you'll pay a monthly rate towards system ownership, including interest. You can still apply for valuable solar incentives, and depending on your lender, you could put as little as $0 down. Solar leases allow you to pay a monthly fee to rent your panels, while a power purchase agreement lets you pay a fluctuating rate based on only the energy you use. We generally don't recommend these options since you will not have ownership of your system and are disqualified from solar incentives, but they might be appropriate in certain circumstances. We advise working with a company that offers multiple financing options. Talk to each representative about what's available, and secure more than one estimate for the best odds of keeping within your financial plan.

The table below lists the average payback periods for different capacities of solar systems in Knoxville.

The IRS allows you to claim a 26% federal tax credit for solar panels on your new solar panels, so long as you purchase it before 2032. City and state governments and utilities might also offer their own financing programs, rebates, and incentives that could save you more money.

Solar System CapacityEstimated Payback period
1 kW2.4 years
2 kW4.8 years
5 kW12.1 years
10 kW24.1 years

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Frequently Asked Questions About Solar in Knoxville

How much energy and money could I save per year by switching to solar?

On average, Knoxville homeowners shell out roughly $1,068 per year for energy. Once you pay off your solar array, you could save $347.73 per kilowatt you produce.

Is solar energy readily available in Knoxville?

Yes, solar energy is on the rise in Knoxville. Some homes already generate solar power on-site or through utility grids, and they're fortified by a state solar economy with 4194 jobs and counting.

Should I anticipate a property value increase after going solar?

Yes, new solar systems lead to higher property values according to the National Renewable Energy Laboratory (NREL.) Homeowners could project a $20 property value increase for each dollar they save on energy. Therefore, $600 in energy savings could boost your property value by $12,000.

What can I do to predict my home's solar viability?

One common way to calculate your home's solar viability is by using PVWatts. This powerful free tool considers panel efficiency, local weather and topography, system size, and tree cover to determine how much energy your array could generate. However, it's not a substitute for consulting with a solar energy professional, who can build a full estimate with the most updated data.

Is solar panel installation a quick job?

There's no universal answer for how long a solar project might take. Ultimately, it depends on the necessary prework, panel style, system size, the permitting and inspection process, and local weather. Many homeowners can be solar-ready within a couple of months from their initial estimate visit.

What size should my new Knoxville solar system be?

A typical Knoxville solar home uses a 7.9-kW panel array, but you might need a bigger system if your energy needs are higher. Solar contractors will consider your property's energy consumption and roof shading to determine the appropriate system for you.

What's the difference between a PPA and traditional financing?

A PPA is an agreement between you and your contractor. They set up, own, and care for the panels, and you buy the generated electricity from them for 10–25 years. There will usually be options to buy out early to own your system and extend the agreement.

In contrast, solar loans can come from installer, specialty lenders, local banks and the government. You'll need to pass a credit check to qualify for most of them. While the upfront costs are larger, and you'll be responsible for maintenance, you'll also have full ownership rights and can apply for many more incentives.

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

Sources