Ask the Contractor: Things To Know Before Installing Solar Panels Yourself (2024)

Solar panels save homeowners money. They’re also quite expensive to have installed. Is installing solar panels yourself better than having professional solar companies install them? We talked with our resident expert about whether solar panels could suit your home and if installing them yourself is worth the effort.

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Q: How do you know if solar panels will work for your home?

A: There are certainly pros and cons to installing solar panels. For some homes, it’s simply not the best energy solution. Your home should meet several criteria before deciding to install a solar system. A few must-haves for solar power are:

  • Your roof is in good condition, so you won’t have to replace it anytime soon.
  • The initial cost of solar panels fits your budget.
  • Your roof gets adequate sunlight to make solar panels worth the cost and effort.
  • If needed, you’re willing to trim trees to get more sun to your panels.
  • Your roof can support the additional weight of a solar system.

That’s not an exhaustive list, but it’s a good place to start determining whether or not to look deeper into the subject.

Q: Do you need a new roof before you install solar panels?

A: If asphalt shingles protect your home, consider scheduling a roof inspection by a trusted roofing company before installing solar panels. Even if you’re going to install your own solar panels, it’s comforting to have the go-ahead nod from a roofing pro.

Generally, roofs less than 10 years old won’t need replacement first. If your roof is older than that, it may just be wise to replace the roof now instead of in a few years when the cost of replacement goes way up because there are solar panels in the way.

Q: Do you need to make your home energy-efficient to use solar panels

A: In general, it’s just a good idea to make your home as energy-efficient as possible without being impractical. Energy efficiency doesn’t have to mean that your family is uncomfortable. Switching to LED lighting and Energy-Star rated appliances is an easy way to start.

The best solar panels will provide lower energy bills no matter your electrical use habits. However, the more energy you can save, the less your solar panels will have to produce. Both things mean lower energy costs, and you may even get away with a less expensive solar panel system.

Q: How many solar panels do you need?

A: To provide all of the electrical needs of an average-sized, energy-efficient home, the old rule of thumb was that you’d need around 30 solar panels. But, solar panel technology is quickly and constantly improving. The current estimated number of panels is about 24. That number is only headed down from there.

Once again, if you’re doing the work yourself, it may help to have a professional evaluation of your energy needs and your home’s energy production potential.

Q: What kind of solar panels are best?

A: There are three main types of solar panels. From most expensive to least are monocrystalline, polycrystalline and thin-film or amorphous panels. The best solar panels for longevity and efficiency are monocrystalline. However, due to their high initial cost, they may not be best for every home.

Polycrystalline panels can create the same amount of electricity as monocrystalline panels but are less efficient. You’ll need a larger surface area of panels or more of them. However, if space isn’t a problem, the initial cost of a poly panel system can be much less than a mono system and still meet the home’s energy needs.

The last one, thin-film solar panels, is still being developed and isn’t efficient enough to be a contender in the residential market. Yet. The best use of these panels is for commercial purposes, but that could start to change soon.

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THIS IS AN ADVERTIsem*nT AND NOT EDITORIAL CONTENT. Please note that we do receive compensation for any products you buy or sign up to via this advertisem*nt, and that compensation impacts the ranking and placement of any offers listed herein. We do not present information about every offer available. The information and savings numbers depicted above are for demonstration purposes only, and your results may vary.

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Q: Is it hard to install solar panels?

A: The physical installation of solar panels is within reach for highly skilled DIYers. The electrical wiring and component installations are best left to the professionals. The correct answer might be that solar panel installation isn’t difficult, but it is complex. If you’re not a fan of being on a roof, or not comfortable working with electricity, then yes, it’s hard to install solar panels yourself. But, with the advent of DIY solar panel installation kits and some time on your hands, it’s certainly not impossible.

Ask the Contractor: Things To Know Before Installing Solar Panels Yourself (2024)

FAQs

What I wish I knew before getting solar panels? ›

Before you even consider installing solar panels, ask yourself, how old is my roof? If you know that you will need a new roof soon, or that a part of your roof is damaged, it probably isn't the best idea to install solar panels. If you can, take care of any roof repairs before the installation.

What you need to know before installing a solar system? ›

Check for damaged tiles, rust, and water damage. Roofs that are in a state of disrepair can make it difficult to install a solar system. It may also mean that if the damage worsens, you'll probably have to remove the panels to get your roof repaired or replaced – which is an additional cost that you don't need.

Can I install solar panels myself? ›

Although you can install solar panels yourself in theory, professional installation is recommended if you want a solar energy system that is capable of powering an entire home, or even a small business.

Is it worth installing my own solar panels? ›

Yes, it's cheaper to build your own solar panel system. Since you don't have to pay for labor and other overhead costs, you could save $5,000 or more with a DIY system. However, installing solar panels is a complicated process with many possible mistakes, and you may have less access to cost-saving solar incentives.

Why are people hesitant to get solar panels? ›

Due to general solar power misinformation, lots of homeowners are led to believe that solar panels are free. On the flip side, there are also a lot of homeowners that believe solar panels are expensive.

At what point is solar panels worth it? ›

If you live in a state with high electricity rates, switching to solar will likely be a good investment. However, if your household does not require a high energy consumption to operate day-to-day, you may not save enough to offset the installation system cost.

How hard is it to install a solar system at home? ›

The electrical wiring and component installations are best left to the professionals. The correct answer might be that solar panel installation isn't difficult, but it is complex. If you're not a fan of being on a roof, or not comfortable working with electricity, then yes, it's hard to install solar panels yourself.

Are DIY solar kits worth it? ›

DIY solar panels will only save you about 10% of your total bill. With the risk of improper installation, lack of access to high-quality equipment, and the extra time it takes to install the panels and complete the administrative work installers generally handle for you, that extra 10% becomes well worth it.

How long do solar panels last? ›

The Life Span of Solar Panels

Manufacturers design solar panels to last for decades. According to the Solar Energy Industries Association (SEIA), solar panels last between 20 and 30 years. Some well-made panels may even last up to 40 years.

How many solar panels does it take to power a house? ›

How many solar panels are needed to power a house? The average U.S. household needs between 15 and 20 solar panels on its roof to generate enough electricity, or around a 9 kW system. That being said, the number of panels needed depends on the amount of power a household uses.

How much does it cost to DIY solar panels? ›

Based on the cost of DIY solar panel kits from companies like Renege and Grape Solar, the average cost per 400 watts (W) is between $500 and $600. Since the average U.S. homeowner needs a 9 kilowatt (kW) system to offset their electric bills, that puts the total cost for the equipment at between $11,250 and $13,500.

Which solar panel is best? ›

Top 10 solar panels, compared
BrandModelPower Output
1. SunPowerM series SPR-M440-H-AC440 W
2. REC GroupAlpha Pure-R 430 W430 W
3. PanasonicEverVolt HK EVPV Black 410-Watt410 W
4. Maxeon Solar TechnologiesMaxeon 3 BLK-R 420W420 W
6 more rows
Feb 27, 2024

Who makes the best solar panels? ›

Compare the Top Solar Panels
CompanyStar RatingEfficiency
Our Top Pick SunPower GET QUOTE4.820.9% – 22.8%
Silfab Solar GET QUOTE4.718.9% – 21.4%
Panasonic GET QUOTE4.319% – 21%
Qcells GET QUOTE4.019% – 20%
2 more rows
Mar 29, 2024

Are solar panels worth the hassle? ›

Solar panels are one of the smartest investments a homeowner can make, especially as the cost of electricity is rising across the country. While average electricity rates increase about 2.5% every year, the benefit of going solar is that you don't have to worry about climbing energy costs anymore.

Are solar panels good or bad for roofing? ›

Your Roof Value May Increase

The bottom line is this; Having solar panels installed on your roof not only helps you keep your electric bill down and is safer for the environment, but you can significantly increase your overall home value just from having the installation done.

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