Solar Panel Cost Guide in London, KY (2025 Update)
- London Solar Installation Cost: $24,555
- 25-Year Savings: $24,763
- Payback Period: 15.2 Years
See cost of a solar system near you:
Please enter a valid 5-digit zip code!
Why you can trust EcoWatch
Average Cost of Solar Panels in London
We break down average solar pricing in London.
The national average cost of solar panels is $2.66 per watt, but in London it’s 4 per watt.Because a 9.6-kW system is needed to cover the energy consumption of a typical home in London, the average price of going solar will be about $24,555 after claiming the federal solar tax credit of 0.
Remember that the numbers above are only averages. The price you’ll end up paying for solar will differ based on your household energy use, the type of solar system you want to get, your solar contractor and more.Many homeowners find adopting solar power is a fruitful investment. The average homeowner in London can save about $16,000 on their energy bills over 20 years.
You can click the button below to get connected with a top solar company in London that can help you get a more accurate cost estimate for your home.
Solar savings over time in London
| Year | Return on Investment |
|---|---|
| 1 years | $-23,164 |
| 3 years | $-20,380 |
| 5 years | $-17,596 |
| 7 years | $-14,812 |
| 9 years | $-12,028 |
| 11 years | $-9,244 |
| 13 years | $-6,461 |
| 15 years | $-3,677 |
| 17 years | $-893 |
| 19 years | $1,891 |
| 21 years | $4,675 |
| 23 years | $7,459 |
| 25 years | $10,242 |
Top Solar Installers in London
Many homeowners decide to hire a solar panel company since figuring out how to install solar panels yourself can be challenging. Plus, if you’re unsure what kind of solar panels and equipment you need, a solar expert can help you figure that out after a site survey and consultation.
There are various licensed solar professionals that can help you install your solar system. Here are our suggestions:
See all of the solar companies in London
Factors that Affect Solar Panel Costs in London
For many London homeowners, the decision to install solar panels comes down to cost. However, the range of solar installation costs can be quite wide in London, with typical prices between $20,000 to $40,000. There are a few factors that significantly influence the price you’ll pay, which we'll go over below.
Solar Equipment
System size, which is measured in kilowatts, is one of the largest factors that affects the overall cost of installing solar panels. That’s why it’s crucial to accurately ascertain the size of the solar energy system needed for your home by figuring out your energy needs.The brand and type of equipment you choose for your solar system can increase or decrease the price quite significantly. If you prefer a brand name like Tesla or SunPower, these often have a higher price tag than other brands. Efficiency also matters. Whether you’re opting for high efficiency because you have limited roof space or just want maximum energy production, you will be looking at a higher equipment cost, but this can typically lead to more savings over time. Also, if you want add-ons like an electric vehicle charger or solar batteries, this will also increase the cost.
Solar Financing Terms
For some homeowners, paying for solar out of pocket can be challenging. Solar loans are offered by most installers in London, which can bring down, or in some cases completely eliminate, your upfront costs to make solar more affordable.When considering your overall cost, you should also calculate the interest you’ll pay if you choose to go with a solar loan. Also, paying more on your down payment can lower the total interest paid over time.
Solar Panel Installation Company
A final factor to consider when trying to estimate the cost of solar for your home or business in London is the company you choose to install your PV system. Similar to choosing a company to install new cabinets, for instance, you’ll have no shortage of solar installers that provide a range of services at different costs.Larger national companies usually have lower costs, but some local companies undercut them by promoting sales and discounts. While the smaller companies might not have access to specific equipment options like Tesla Powerwall batteries or additional services like electric vehicle charger installation, they might be cheaper overall.
Solar Panel Cost Data by System Size
| System size | Cost per system watt | Solar system cost | 25-Year savings | Payback period |
|---|---|---|---|---|
| 6 kW | $3.80 | $15,943 | $9,344 | 15.8 years |
| 8 kW | $3.72 | $20,849 | $12,868 | 15.5 years |
| 10 kW | $3.65 | $25,550 | $16,596 | 15.2 years |
| 12 kW | $3.58 | $30,047 | $20,528 | 14.9 years |
| 14 kW | $3.50 | $34,339 | $24,665 | 14.5 years |
| 16 kW | $3.43 | $38,427 | $29,006 | 14.2 years |
| 18 kW | $3.36 | $42,311 | $33,552 | 13.9 years |
| 20 kW | $3.29 | $45,990 | $38,302 | 13.6 years |
How to Save on Solar Panels
There are many companies available in London, and some homeowners feel overwhelmed considering their options. Picking the right company for you can be tough, so here are some tips to help you decide:
- Contract: When looking through your solar installer’s contract, ask for clarification about any terms you’re not sure of and be sure you understand what happens in scenarios such as a system part breaking or if the company goes out of business.
- Warranty: Warranties that provide coverage for defective panels and repairs over a long period of time such as 25 years are the best you can get in the business, and offering such a warranty is one indication of a good company.
- Installation Process: When going solar, it’s necessary to maintain an open line of communication with your solar company. Make sure you understand how the installation process will go and the completion timeline.
- Solar Panel Brands: Different companies will offer different brands and kinds of panels. If you want a specific brand, make sure the solar company you’re considering has it.
EcoWatch's London, KY Solar Cost FAQs
What is the average cost of installing solar panels in London?
This is a tough question to answer exactly, because the cost depends on a variety of factors. Broadly speaking, it costs about $18,250 for a 5-kW system and $36,500 for a 10-kW system after the ITC is applied. You can expect to pay more if you want extra solar equipment or higher quality panels, or if you have higher-than-average energy needs. On the flip side, you can spend less if you want a smaller solar panel system or cheaper solar panels.
What other factors should I consider other than cost when buying solar panels?
Cost is a key factor to consider, but whether it’s the most important for you depends on your goals for going solar. In cities where rooftop space is limited, efficiency can be more important than the cost. Other factors that are important to be mindful of are the quality and durability of your solar panels.
How much can I save on power bills after installing solar panels?
It is possible to eradicate your electricity bills with solar panels, but for most homeowners throughout London, that will require at least a 10-kW system. Not all homes can accommodate that size system, so you’ll want to contact a local solar installer to see how many panels can fit on your roof.
What solar power system size is right for my home?
The exact number of solar panels you need depends on your household energy consumption and how much sunlight your roof gets. You can take a look at your energy bills for the past year to get an idea of the solar system size you'll need. The average household has to install between 20 and 35 panels to cover their typical energy usage.
Our goal is to reach as many people as we can with sensible solutions like solar energy. Our team of full-time local researchers collects solar price and installation data for every city in America then compiles it to create these digestible city guides. If you want to read our solar expert's opinion on the top solar companies featured here, follow this link.