Solar Panel Cost Guide in London, OH (2025 Update)
- London Solar Installation Cost: $17,798
- 25-Year Savings: $15,438
- Payback Period: 15.5 Years
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Average Cost of Solar Panels in London
Find out what the average cost of a solar system is in London.
In London, solar panels cost about 3 per watt on average.Because a 7.5-kW system is needed to cover the energy usage of a typical home in London, the average price of going solar will be about $17,798 after claiming the federal solar tax credit of 0.
The prices above are just estimates to give you an idea of the cost of a solar panel system. The exact cost of making the switch to solar can vary based on several factors, such as what size system you need, your energy usage and what installation company you go with.For many homeowners, the upfront investment in solar is worth paying. On average London homeowners see about $15,000 in savings on energy bills over 20 years.
To see your potential savings and connect with a local solar expert, click the button below.
Solar savings over time in London
| Year | Return on Investment |
|---|---|
| 1 years | $-16,780 |
| 3 years | $-14,744 |
| 5 years | $-12,707 |
| 7 years | $-10,670 |
| 9 years | $-8,634 |
| 11 years | $-6,597 |
| 13 years | $-4,561 |
| 15 years | $-2,524 |
| 17 years | $-487 |
| 19 years | $1,549 |
| 21 years | $3,586 |
| 23 years | $5,622 |
| 25 years | $7,659 |
Top Solar Installers in London
Although you can install solar panels yourself, it takes extra time and know-how. For that reason, almost all homeowners choose to hire a solar panel installer. Solar warranties and repairs are often included in the cost of installation when you sign a contract with a solar contractor too, which can save you more money over time.
If you’d like to start using solar energy but still aren’t certain which solar system installer to go with, here are our recommendations for providers in London:
See all of the solar companies in London
Factors that Affect Solar Panel Costs in London
For many London homeowners, the decision to adopt solar energy depends on 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 various factors that considerably influence the price you’ll pay, which we'll go over below.
Solar Equipment
The cost of solar panels varies by thousands of dollars due to a variety of factors. One of the main factors is the system size, which is measured in kilowatts (kW). Solar power systems with better efficiency or power production require better technology and/or more equipment, both of which can increase costs. For each additional kilowatt you need, your cost can go up by about $3,410.There are many different solar panel brands and the one you pick also affects the cost. In general, the brands that offer higher efficiency tend to also be more expensive. Additionally, the type of equipment you’re looking to install can affect your total cost. If you just need panels, your system will be far less expensive than if you also need solar batteries or an electric vehicle charger.
Solar Financing Terms
Solar panels can save you money on power bills over many years, but they can also be a significant investment. That’s why many London homeowners decide to finance their solar panel systems to offset upfront costs.It’s a good idea to include the interest you’ll pay in your final cost estimate. If you can afford to put more money down upfront, you can reduce your total costs and how long it’ll take to pay off the loan.
Solar Panel Installation Company
A final factor to keep in mind when trying to figure out the cost of solar for your home or business in London is the company you hire to install your PV system. As with choosing a company to renovate your kitchen, for example, there are plenty of solar installers that offer a range of services for different budgets.Additionally, some companies in London know more about local solar incentives and can help you take advantage of additional rebates or tax exemptions. However, they may charge more for walking you through the whole process. Even if they cost more upfront, they could help you save more money in the long run.
Solar Panel Cost Data by System Size
| System size | Cost per system watt | Solar system cost | 25-Year savings | Payback period |
|---|---|---|---|---|
| 6 kW | $3.55 | $14,895 | $8,280 | 16.1 years |
| 8 kW | $3.48 | $19,478 | $11,421 | 15.8 years |
| 10 kW | $3.41 | $23,870 | $14,754 | 15.5 years |
| 12 kW | $3.34 | $28,071 | $18,278 | 15.1 years |
| 14 kW | $3.27 | $32,081 | $21,992 | 14.8 years |
| 16 kW | $3.21 | $35,900 | $25,898 | 14.5 years |
| 18 kW | $3.14 | $39,529 | $29,995 | 14.2 years |
| 20 kW | $3.07 | $42,966 | $34,282 | 13.9 years |
How to Save on Solar Panels
Since the brand of solar panels and the installer you choose significantly affects your costs and your system’s durability and efficiency, it’s important to select the right ones for you. Here are some things to keep in mind to help with your decision:
- Solar Panel Brands: Homeowners will have different preferences for panels depending on their locations and energy needs. Although there are many options for which kind of solar panel you can get, not every company will have the exact one you may want or need, so be sure to ask for their list of options before making your decision.
- Reputation: Make sure your solar installer has a good reputation by verifying it has certifications and licenses, checking its work history and reading reviews by previous customers and solar experts like the EcoWatch team.
- Warranty: Many companies offer different kinds of warranties that provide different kinds of coverage. A 25-year, all-inclusive warranty is the gold standard.
- Contract: Before you sign a contract with a solar installer, make sure you look it over carefully so you understand the terms. Also, ask questions if you’re not certain about some of the terms, such as what the warranty covers and if there are any guarantees about energy production.
EcoWatch's London, OH Solar Cost FAQs
What is the average cost of installing solar panels in London?
The average cost of solar panels in London is about $17,050 for a 5-kW system and $34,100 for a 10-kW system before the ITC, but the actual cost will depend on things like the kind of solar panels you want, what size system you need and how much energy you consume.
Is it better to lease or buy solar panels in London?
Leasing solar panels can be an attractive choice, as it usually comes with low or $0 upfront payments. The downside is that you won’t be able to save as much. If you lease, you don’t own the system, so you can’t claim any tax rebates and credits and your home value won’t increase. Buying solar panels is a better way to go if you want to maximize your savings.
How much can I save on energy bills after switching to solar?
It is possible to eliminate your electricity bills with solar panels, but for most homeowners in London, that will require at least a 10-kW system. Not all homes can accommodate that size system, so you’ll want to check with a local solar installer to see how many panels can fit on your roof.
How many solar panels should I get to power my home?
The exact number of solar panels you need depends on your household energy consumption and the amount of 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 get 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.