Pros and cons of solar energy: It's usually worth it

Solar isn't perfect. You'll want to understand solar's disadvantages before deciding if it's right for you:

1. Solar panels don't work for every roof

If you have a south-facing roof sloped between 15 to 40 degrees, you're in great shape for solar. Even with an east- or west-facing roof, or one that's flat, solar's likely still worth it. If you can only install solar panels on the north side of your roof, we don't recommend it.

Similarly, solar works well with asphalt shingle or metal roofs. But certain roofing materials used in older or historical homes, such as slate or cedar tiles, can be challenging for solar installers to work with. Some homes have skylights or rooftop additions like roof decks, which can also make installing solar too expensive or difficult.

If your home doesn't qualify for a rooftop solar installation, you still have options. If you have enough open space, you can install ground-mounted solar panels, or if your state has open projects, you can subscribe to a local community solar farm.

2. Solar isn't ideal if you're about to move

It takes time to break even on a solar panel system: The average solar panel payback period in the U.S. is around eight to nine years. Even though going solar will likely increase your home's value, if you plan to move in the next three years or so, it's probably not worth it.

3. If your electricity costs are low, your solar savings will be too

The ultimate benefit of solar energy is that it saves you money every month. If you live in a state like Louisiana, though, where the cost of electricity is often 30% lower than the national average, it will take a long time to save with solar. On the other hand, installing a solar panel system in Hawaii makes a lot of sense: Electricity costs more than double the national average!

4. If you can't access financing, up-front solar costs can be intimidating

Your upfront cost of solar depends on tax credits, rebates, and the terms of your financing. If you don't qualify for a zero-down solar loan, the disadvantage of solar energy here is clear: Not everyone has the cash to purchase solar upfront.

Several solar financing options can help, such as state-backed loan programs, leases, and power purchase agreements. To understand what solar will cost you, get a quick estimate of the average cost of solar in your state or even a personalized estimate for your home.

5. Solar panels don't work at night

Solar panels require sunlight to produce energy. At night or during inclement weather, you'll need to pull electricity from the grid. If you live in a state with net metering, this isn't a big deal. But if your utility won't compensate you for the excess electricity you send to the grid, you'll need a battery for solar to be worth it.

By pairing your solar energy system with energy storage, you can store excess electricity in your battery. At night, you can pull electricity directly from your battery instead of the grid. While batteries increase the cost of your system quite a bit, they're well worth it in states like California that don't have net metering.

6. Solar panels are sometimes made with toxic materials

Solar panels are made up of silicon solar cells, a metal frame, and a glass sheet. But depending on the brand and model, they can also contain toxic heavy metals like lead and cadmium. While some solar panel manufacturers are starting to phase out these heavy metals, the EPA considers most old solar panels hazardous, so you need to dispose of them properly.

If sustainable solar panels are important to you, make sure to let your installer know so they only include models without heavy metals in your quotes. These panels may cost a bit more, but they are better for the environment.

7. Finding quality solar installers can seem difficult

Many homeowners associate solar panels with pushy door-to-door solar sales reps. Solar is one of the fastest-growing markets in the world, and plenty of companies use aggressive sales tactics. As a result, shopping for solar can feel stressful and confusing.

Today, there are easier ways to shop for solar that put you in control. The EnergySage Marketplace is a free online comparison-shopping platform that allows you to compare solar quotes from vetted installers in your area.

What are the advantages and disadvantages?

Thanks to available solar panel grants, as well as, the increasingly competitive prices in the market, solar energy has become the main source of energy for more and more families. The technology has been drastically improved the last years and has been complemented by solar battery storage systems, turning solar into a significantly more efficient source of clean energy. However, solar battery prices are something worth thinking about.

However, there are always downsides no matter the energy source you choose to analyse. GreenMatch has outlined the key advantages and disadvantages of solar power in the following points:

What are the advantages of solar energy?

There are many benefits of using solar energy to power your home. These include:

• It’s a renewable energy source, meaning it can last forever (as long as we have the sun!).
• It doesn’t require the mining of fossil fuels. It’s clean and pollution free: no carbon emissions and no greenhouse gases.
• It can reduce your energy bills. Solar energy is free and can be stored in a battery to maximise use.
• Solar panels require little to no maintenance, saving you time and money.

In the sections below, we’ll discuss all of the advantages you can benefit from in more detail.

1. Renewable energy source

Among all the benefits of solar panels, the most important thing is that solar energy is a truly renewable energy source. It can be harnessed in all areas of the world and is available every day. We cannot run out of solar energy, unlike some of the other sources of energy.

Solar energy will be accessible as long as we have the sun, therefore sunlight will be available to us for at least 5 billion years when according to scientists the sun is going to die.

2. Reduces electricity bills

Since you will be meeting some of your energy needs with the electricity your solar system has generated, your energy bills will drop. How much you save on your bill will be dependent on the size of the solar system and your electricity or heat usage. This can be found in our ‘is it worth getting solar panels?’ guide.

For example, if you are a business using commercial solar panels this switch can have huge benefits because the large system size can cover large chunks of your energy bills.

Moreover, not only will you be saving on the electricity bill, but there is also a possibility to receive payments for the surplus energy that you export back to the grid through the Smart Export Guarantee (SEG). If you generate more electricity than you use (considering that your solar panel system is connected to the grid). 

3. Diverse applications

Solar energy can be used for diverse purposes. You can generate electricity (photovoltaics) or heat (solar thermal). Solar energy can be used to produce electricity in areas without access to the energy grid, to distil water in regions with limited clean water supplies and to power satellites in space.

Solar energy can also be integrated into the materials used for buildings. Not long ago Sharp introduced transparent solar energy windows.

4. Low maintenance costs

Solar energy systems generally don’t require a lot of maintenance. You only need to keep them relatively clean, so cleaning them a couple of times per year will do the job. If in doubt, you can always rely on specialised cleaning companies, which offer this service from around £25-£35.

Most reliable solar panel manufacturers offer 20-25 years warranty.

Also, as there are no moving parts, there is no wear and tear. The inverter is usually the only part that needs to be changed after 5-10 years because it is continuously working to convert solar energy into electricity and heat (solar PV vs. solar thermal). Apart from the inverter, the cables also need maintenance to ensure your solar power system runs at maximum efficiency.

So, after covering the initial cost of the solar system, you can expect very little spending on maintenance and repair work.

5. Technology development

Technology in the solar power industry is constantly advancing and improvements will intensify in the future. Innovations in quantum physics and nanotechnology can potentially increase the effectiveness of solar panels and double, or even triple, the electrical input of the solar power systems.

Don’t want to wait any longer to reap all of these solar benefits? By opting for solar panels, you’re not only reducing your energy costs, but you’re also making a positive impact on the environment. GreenMatch can help you take the first step by securing the best quotes for your needs.

By filling out our form now you’ll receive up to 4 free quotes from trusted local installers and begin your journey towards a brighter, more sustainable future in less than a minute. Say goodbye to hours spent vetting and requesting quotes from installers in your area.

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