Solar Panels Cost $16k-$26k in Sullivan County, TN | August, 2025

Electricity Costs in Sullivan County, TN & What that Means for Your Solar Panel Pricing

On average, Sullivan County residents use 1,269 kWh each month, and the electric bill is 151.01. This data also include apartments and other smaller homes, which generally have lower energy demand.

The average electricity rate in Sullivan County, TN in August 2025 is 11.9¢ per kWh.

You'll spend $26,642 on an 11 kW setup after taking the 30% federal income tax credit into consideration.

Are solar panels worth it in Sullivan County, TN?

If you intend to own your residence longer than the solar system's payback period, solar panels are a good investment in Sullivan County. Having a 5 kW solar system in Sullivan County, TN can potentially save you around $24,132.4 over a span of 20 years, with an average break even point of 7 years.

The cost of not having solar panels in Sullivan County, TN

The absence of solar panels or another backup power source means missing out on the previously highlighted savings and full dependence on your electric utility for power. Recent news examples have shown that full reliance on your utility provider is not always ideal.

In recent years, customers in Sullivan County have faced an average of 1.3 utility outages each year. Outages typically last for an average of 196.26 minutes. Major occurrences like grid management errors, heavy rain and flooding or vandalism can lead to a significant rise in these time frames.

View the graphic below to see the number of current electricity customers without power in Sullivan County.

Whether it includes a backup battery or not, a solar panel system could ease the inconvenience of any future power interruptions you may encounter.

What impacts the cost of solar panels in Sullivan County, TN?

Your Energy Needs - Even though larger solar panel systems are more expensive initially, the average price per watt lowers as the system size increases. It is often useful for homeowners to set up a solar system that can make enough electricity to completely replace their electric bill, which results in substantial savings.

Make & Model - Solar panels and mounting equipment, similar to many other products, are available in a variety of makes and models. Your installer’s potential brand preferences make it more important to pick a highly rated contractor. Consumers who choose superior makes and models generally enjoy a superior long-term experience.

Solar Panel Type - It's understandable that monocrystalline panels are now the standard in the industry. These panels are more expensive but produce more energy. The majority of installers in the industry use panels crafted from this material.

Your Property - No two homes or properties are the same. Elements such as trees, sloping terrain, or additional challenges might complicate the installation process. These days, solar installers typically leverage satellite images to evaluate your home and factor in these considerations into the preliminary cost estimate.

Labor Rates - Different companies have varied pay scales for their employees, and these costs are eventually passed on to consumers. Higher wages typically lead to businesses getting better reviews for their work and customer service.

Permitting & Interconnection - Your final installation cost will be impacted by local permitting and utility interconnection fees, which vary by area. Reliable installers will factor these costs into your initial quotes to prevent unexpected expenses.