DIY Solar Panels: Pros, Cons and Installation Guide

What are DIY solar panels?

A DIY solar panel kit contains factory-manufactured solar modules and mounting hardware that homeowners install themselves, eliminating contractor labor costs while maintaining equipment quality and safety certifications.

How DIY solar panels work

DIY solar panels work the same as professionally installed systems. Solar panels use silicon photovoltaic (PV) cells to absorb sunlight and release electrons, generating direct current (DC) electricity. An inverter converts DC into alternating current (AC) power your home can use.

The only difference with DIY solar is that you determine system size, placement and installation.

DIY solar panel kit options

There are quite a few DIY solar panel kits on the market, so before you buy, you’ll need to understand the different options that are available to you.

Prepackaged bundles

Prepackaged kits include compatible components in one bundle, simplifying installation. While setup can be straightforward, it still requires skill and troubleshooting.

Robert in Arkansas described his system as “practically plug-and-play,” but still relied on YouTube because the instructions lacked detail.

Off-grid and portable setups

Off-grid and portable systems provide backup power without permanent roof installation. David in Tennessee uses a panel-and-battery combo as a mobile generator, saying he can “just set it out on the front porch” to charge or pack it up for camping trips.

How to choose DIY solar panels

When you choose a kit, consider what type of panels you want and how many you need to power your home. Ask yourself a few questions, including:

• How big should your kit be? Will you need 2,000 watts or 10,000 watts or somewhere in between?
• How many panels does your project require?
• Will you mount it on the roof or on the ground?
• Do you want to add a battery?
• What type of inverter is best for your project?

Where to buy DIY solar panels

You have three main options when it comes to where you can buy solar panels:

1. Local retailers selling other solar companies’ products, like ShopSolar
2. Directly from manufacturers’ websites
3. Home improvement stores or Amazon

Can you install solar panels yourself?

Installing your own solar panels is doable for some. But before you take the DIY leap, you’ll need to take into account whether it’s even possible to install your own system.

Most residential solar panel installations require 20 to 40 hours of work.

Taking the reins on your own energy system requires a high level of technical patience and a willingness to troubleshoot independently. As Jesse in California put it, you must “be a self-motivator and figure out stuff on your own.”

Here are some things to keep in mind when evaluating whether or not it’s achievable for you.

DIY works best for small projects

Most solar kits are not designed for whole-home conversions. Most DIY systems supplement existing power rather than replace it entirely. Whole-home solar installations typically require professional expertise.

DIY kits are more practical for garages, boats, sheds or remote cabins. John in Pennsylvania chose a compact off-grid kit for a cabin “that aren’t gonna have a lot of need” but still powered a refrigerator and tools.

Technical expertise is often required

If you’re unfamiliar with wiring, hiring an electrician may be safest (and sometimes legally required). Check local codes before starting; some jurisdictions mandate professional involvement.

You’ll need more than just panels

You’ll need to find and purchase the proper equipment yourself, and you may need more than you think.

Besides solar panels, you may need an inverter, mounting system and other gear, like a battery and charge controller, if you want to keep your system independent of the electric grid.

Permits are usually required

If your system connects to the grid, you’ll likely need approval from your city or utility provider. Even off-grid systems may require permits.

Make sure you understand what kind of permit you will need before you start your project, and include that in your timeline. After a costly misstep with their local jurisdiction, Rm in North Carolina warns future DIYers to “never purchase any components before first completing your designs to ensure they align with your AHJ’s (authority having jurisdiction) specs and requirements.”

Pros and cons of DIY solar panels

DIY solar can save money. It also comes with tradeoffs. DIY installers enjoy flexibility in materials and timing. For those who like hands-on technical projects, installation can be rewarding.

The case for hiring a pro

DIY solar panel installation comes with real risks. Roof penetrations require precise drilling and sealing — mistakes can lead to leaks or structural damage. Electrical errors can result in shock or fire. Without the right knowledge and experience, small missteps can turn into costly home repairs.

Professional installers know when to adjust the plan to avoid these issues, potentially saving you significant time and money.

Get professional quotes to compare how much you’d actually save by going DIY.

DIY projects are also more time-intensive than many expect. Permits and paperwork typically must be approved before installation begins, adding complexity and delays.

Warranty protection is another big consideration. Manufacturers may require proof that panels were installed correctly, which can make warranty claims more difficult for DIY systems. In contrast, professional installers often provide workmanship coverage in addition to equipment warranties. When weighing his options, Jeffrey in North Carolina chose professional installation because his provider “covers parts and labor for the whole thing.”

If problems arise later, paying to fix a faulty DIY setup can quickly erase any upfront savings.

» MORE: Solar energy pros and cons

DIY solar panel installation guide

This overview summarizes the general process. Exact steps vary by system. Before starting:

• Evaluate your property
• Secure required permits
• Purchase the correct equipment

1. Install the racking system

Locate roof support beams and install flashing to prevent leaks. Attach mounting hardware and bolt racking rails in place.

Alternatively, skip permanent mounting for portable or ground-based systems. For example, David in Tennessee opted for a portable setup he can place on his porch or take camping.

2. Install the inverter

Mount microinverters per manufacturer instructions (often on the racking near each panel). If you’re using string inverters instead, mount them on a wall where you can reach them, such as the side of your house. Place them as close to the panel as possible to ensure efficiency.

3. Complete wiring

Next, wire the system according to your plan set (typically included with your kit). This connects the panels to the inverter, the inverter to your home’s circuit breaker box and — if applicable — your home to the electric grid. Extensive knowledge of AC and DC wiring is essential for this step.

4. Mount the panels

Once wiring is prepared, secure the panels to the racking rails using clamps.

5. Install additional equipment

If your system includes batteries, install them in a well-ventilated area with adequate space. Many homeowners enlist professional help for battery installation to reduce safety risks.

After installation, schedule any required inspections with your local building department and set up monitoring to track system performance.

» MORE: Solar panel installation guide

Bottom line

Ultimately, if you want to power your shed or boat, taking on the challenge of a DIY installation is up to you. (It requires more than a quick tutorial, but it’s also deeply rewarding when finished.) However, if you’re looking to rely on solar energy to power your house, we recommend enlisting professional assistance.

Ask yourself if you have the time and expertise to complete a project of this scale.

When it comes to solar panels, paying extra for professional help is usually worth the peace of mind. Throughout the installation process, a lot can change, and adjustments may be necessary — like using fewer panels or shifting the mounts. A professional knows when to depart from the original plan and save you a headache.

Outfitting your home with sustainable energy is a big step, and the path forward is up to you. If you decide to go with help from the pros, we ranked the top solar companies to help give you a head start.

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