The Pros and Cons of Solar Cells: Is Solar Worth It?

Solar cells are on the rise, and many individuals and businesses are going solar. But there are still some people and experts who look at solar PV cells with doubt.

What if all of what the media says about the benefits of solar cells is advertising? If you’re planning for a rooftop solar system, you need to know the pros and cons of solar cells and the challenges you might face.

Without weighing what you gain from solar panels against their drawbacks, you might waste your time and money.

Here, we’re going to discuss the advantages and disadvantages of solar cells and provide an unbiased guide for homeowners.

After reading this article, you can decide on a solar system better, even if you’re a beginner. If you need more advanced calculations and expert advice for your rooftop PV system, you can count on our help.

Pros of Solar Cells

Solar cells are one of the fastest-growing technologies and the leader of renewable energy systems. 

The capacity of installed solar photovoltaic cells has significantly increased in the past decade. IRENA reports that global solar PV capacity in 2024 was about 730% higher than in 2015. Here, we’ve summarized the benefits of solar cells that caused this growth:

1. Lower Electricity Bills

Solar cells generate electricity without needing fuel or other operational expenses. This provides electricity at almost no cost and helps you save money on your electricity bills.

Apart from consuming solar cells’ electricity during the day, you can store the extra electricity to use later. This is one of the most important advantages of solar cells. You can consume the stored solar electricity at peak hours to reduce your bills.

2. Energy Independence

Solar cells increase your energy independence. You can use the electricity generated by solar cells without relying on grid power.

This is especially important when it comes to power outages or even when the tariffs increase due to national or international crises.

It is also possible to go off-grid if you have enough space to install the required number of solar panels.

More importantly, solar cells can also reduce a country’s dependence on external energy sources.

3. Clean Power With Low Operating Emissions

Solar electricity uses sunlight rather than combusting coal, natural gas, oil, or other types of fuel. So, your solar PV system can produce electricity without the direct operational pollution that is usually emitted with fossil-fuel combustion.

Although the lifecycle of solar cells involves some environmental impacts, the operation of solar cells does not produce any pollution.

So, with solar cells, you’ll have cleaner air in cities and fewer healthcare problems caused by air pollution.

4. Low Maintenance and a Long Service Life

Solar cells don’t have any moving parts, and therefore, their components will not break soon. So, routine maintenance of solar PV systems can be relatively limited compared with mechanical electricity-generation technologies.

You just need some minor regular checks, like:

• Inspecting the system performance
• Checking electrical connections
• Removing significant dirt or debris
• Managing shading

Solar cells usually have a little performance degradation of around 0.7% each year. 

5. Incentives, Tax Credits, and Net Metering

Many governments offer incentives and utility programs to encourage businesses and homeowners to use solar panels.

These programs can significantly affect the economics of solar cells and reduce the initial investment pressure on your budget.

Here are some of the most common incentives in different countries:

• Tax credits
• Rebates
• Grants
• Net metering
• Net billing
• Feed-in tariffs
• Export payments
• Low-interest financing
• Local utility programs

The following table compares some solar cell incentives in different countries:

Country	Tax Credits / Rebates	Net Metering / Export
USA	Residential ITC largely ended (post-2025)	Full retail (many states); net billing (CA)
Germany	VAT exemption (0%)	Feed-in tariff (~7.7 ct/kWh surplus ≤10 kW)
Australia	Small-scale certificates	Net billing (retailer FiT, typically low)
India	Capital subsidy	Net metering (state-level)
UK	None major	Smart Export Guarantee (supplier rates)
Japan	Limited	Feed-in tariff (declining)
China	Limited (market-based)	Market pricing
Netherlands	Tax deductions	Full net metering (phasing out 2027)
UAE	None major	Full retail net metering

“You can hate the subsidies, I hate the subsidies too, but you can’t hate solar panels.” (Thomas Massie)
Even lawmakers who oppose energy subsidies on principle tend to agree the panels themselves deliver. See more perspectives like this in our roundup of 50 renewable energy quotes.

6. Scalable for Homes, Businesses, and Off-Grid Systems

You can use solar cells in different sizes, from charging an electronic watch to enterprise-grade projects.

Solar cells are manufactured at different sizes, voltages, and powers. You can also combine them to make modules, and finally, integrate modules in solar farms and build a large power plant.

Solar systems’ scalability is one of the major practical advantages of solar cells. It gives people and decision-makers the flexibility of implementing solar cells in different projects without changing the technology.

Moreover, this lets people make their homes completely off-grid and run without using grid power.

7. Creating Job Market

Many regions in the world have the ability to install solar cells. This has created a promising job market for technicians, managers, and installers. 

Solar installation is a skilled trade, but it is easier to enter than many traditional energy jobs. This gives many people the opportunity to start new businesses in the solar cell industry.

Another advantage of the solar cells’ job market is that you can run your business without depending on large companies. This is what you can’t see in the traditional energy industries.

Cons of Solar Cells

Just like any other technology, solar cells have some drawbacks. Here are the most important disadvantages of solar cells:

1. High Upfront Cost

The biggest drawback of solar cells is the initial investment. A complete PV system requires lots of devices that lead to a relatively huge investment.

Here is a list of what you need for a small rooftop solar PV system:

• Solar modules
• Inverter or inverters
• Mounting equipment
• DC and AC wiring
• Protection equipment
• Monitoring hardware
• Engineering and design
• Labor
• Permitting
• Inspection and interconnection
• Structural or electrical upgrades
• Battery storage, if included

So, you can’t solely consider the price of solar cells when estimating the cost of your photovoltaic system.

However, it’s good to know that the Levelized Cost of Electricity generated by solar cells during their lifecycle is good compared to traditional power plants. Look at the following table to compare them:

Generation type	LCOE per kWh
Solar PV	$0.038–$0.078
Natural gas power plant	$0.048–$0.109
Coal	$0.071–$0.173

Note that LCOE includes capital, financing, operating, maintenance, and fuel costs over the project lifetime.

So, if you can afford the initial cost, your money will get back to you over time by reducing your reliance on grid power.

2. Dependence on Sunlight, Weather, and Location

Solar cells generate electricity from sunlight. So, their energy production varies throughout the day and year. Their output is highly intermittent because it’s affected by:

• Day and night
• Cloud cover
• Seasonal solar availability
• Roof orientation
• Tilt angle
• Shading
• Latitude
• Temperature
• Dust and soiling
• Snow or other site-specific conditions

This variability is one of the main obstacles to increasing off-grid solar PV systems. We still need grid-connected systems because the utility network is required in bad conditions.

Also, solar cells are location-dependent, which means you can’t implement them wherever you want.

3. Efficiency Limits and Space Requirements

Early selenium solar cells had efficiencies below 0.5%, and the first practical cells had efficiencies of 6% in 1954. Today, commercial crystalline-silicon PV modules have around 20% efficiency. But this still limits how much electricity can be generated from a given area.

In other words, to generate electricity by solar cells, you need a large area of land compared with traditional power plants. 

Although scientists are working on higher-efficiency solar cells, they’re expensive and cannot be commercialized in the short term.

You might say that rooftop PV solar cells remove the need for land for implementing solar plants. However, the roof area of high-rise buildings can’t even cover the electricity needed by the residents of those buildings.

So, we still need land, and this will have environmental and economic impacts.

4. Energy Storage Adds Cost

Solar batteries can solve the problem of intermittency, but they add high upfront costs. For example, a median price of $3,000 per kWh for residential PV-plus-storage systems can only provide 2-4 hours of storage.

However, batteries are not always necessary. Homeowners can use solar electricity when it is available, and rely on the grid when solar production is low. Also, you can export excess electricity to the grid where suitable.

5. Manufacturing Footprint and End-of-Life Recycling

We talked about the clean energy generated by solar cells. But there is a negative fact about the lifecycle of solar cells.

The process of manufacturing solar cells and also the disposal or recycling process of solar cells after the end of their life are not that clean.

The solar cell industry involves many materials and processes, like:

• Raw materials
• Semiconductor processing
• Glass
• Aluminum and other metals
• Manufacturing energy
• Transportation
• Installation infrastructure

Fortunately, thanks to new advancements, the impacts of solar cell production/recycling is becoming less negative.

Final Thoughts: The Pros and Cons of Solar Cells

Solar cells offer real benefits: lower electricity bills, energy independence, clean operation, low maintenance, and government incentives.

But the high upfront cost, dependence on sunlight and location, space requirements, storage costs, and manufacturing and recycling footprint are challenges you shouldn’t ignore.

So, is solar worth it? For most people with a sunny location, a well-oriented roof, high electricity bills, and access to incentives or net metering, the answer is yes. If your roof is heavily shaded, your consumption is low, or local export rates are weak, solar may not pay off as quickly.

Because incentives, panel prices, and tariffs change every year, always check the latest conditions in your region and get quotes from several certified installers before you decide. Our homeowner checklist for buying solar panels lists what to ask them.

In the end, solar cells are neither a miracle nor a scam.

They are a proven technology whose benefits outweigh their drawbacks for many people, as long as you plan carefully and have realistic expectations. To compare solar with other sources, read our guide to the advantages and disadvantages of renewable energy and the pros and cons of wind energy. That cleaner grid power is also behind the shift toward electric vehicles.

If you need more advanced calculations, such as system sizing, production estimates, and payback analysis for your rooftop PV system, you can count on our help.

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If solar looks right for you, size your system with our PV system design service and find vetted installers near you.