Pros and cons of solar panels: What’s the verdict?

• If your house gets good sunlight, the pros often outweigh the cons of installing solar panels.

• The main benefit of solar is using a renewable energy source to lower your electricity bill.

• The main downside to solar panels is the upfront cost, though the cost is steadily decreasing.

Solar panels get a lot of hype, and for good reason. But it’s important to consider the pros and cons of solar panels clearly before installation. Solar panels offer significant long-term electricity savings and environmental benefits, with a typical 5 kW system saving around $16,367 over 20 years while reducing your carbon footprint. 

That said, you'll face upfront costs averaging $17,823 for installation (before incentives), and system performance depends heavily on weather conditions. We’ll break down the benefits and downsides of home solar panels in this guide.

PowerOutage.us tracks 950+ utilities serving 200+ million customers and evaluates solar tradeoffs against real outage performance data. Our live event database since 2016 informs balanced pros and cons grounded in grid reliability patterns.

Overall pros and cons of solar panels

Here’s a quick look at the main pros and cons of solar panels:

Pros of solar panels for your home

Now we’ll take a closer look at the benefits of home solar panels.

1. You can use renewable energy for your home

A major advantage in any solar panel pros and cons comparison is that solar panels generate electricity from sunlight, a renewable resource. Once installed, solar power production creates no on-site carbon emissions while supplying energy for everyday household use. Many homeowners choose solar specifically to reduce dependence on fossil-fuel generation on the grid.

2. Installing solar panels reduces your electricity bills

One of the strongest solar panel pros is bill reduction: solar can shrink (and sometimes nearly eliminate) the electricity you buy from your utility. That also reduces your exposure to future rate increases driven by fuel prices, grid upgrades, or demand spikes. With net metering (where available), excess production can earn credits that lower what you pay at night or during low-production months.

How much you save depends on a few things:

• System size: You’ll generally save more with a larger system sized to cover 100% (or close to it) of your usage.

• Electricity rates: Higher local rates usually mean faster payback; low rates can make the “cons” side of the solar value equation feel heavier.

• Net metering: In states with net metering, you may receive bill credits for excess energy your system produces, which can materially cut monthly costs.

Over a 20-year period, a 5 kW system can save you $16,367 after savings pay for installation costs. Our data also shows many solar panel systems reach payback in about 10 years, though timelines vary by utility rates, shading, and incentives. These figures don’t include the 30% federal tax credit, which ended in 2025 and no longer applies to new purchases for homeowners. 

3. A solar power system has low maintenance costs

Solar panel systems virtually run themselves after installation. Solar system maintenance is pretty simple and includes annual cleanings and occasional inspections. You might pay $300 to $700 per year on average for solar panel maintenance.

4. You can lower your carbon footprint

Another perk to solar panels is they reduce your carbon footprint. While manufacturing gives off some CO2, panels offset their manufacturing emissions within a few years of operation. After that, you really reduce the amount of emissions you contribute.

Your solar installation will help preserve natural resources by:

• Eliminating harmful air pollutants

• Reducing dependence on finite fossil fuels

• Conserving water resources typically used in traditional power generation

• Contributing to cleaner air quality in your community

5. You can move toward energy independence

Energy autonomy is a common “pro” when people weigh solar panel pros and cons, but it depends on system design. Solar panels can reduce how much energy you purchase from the grid, and pairing solar with a battery can cover some household loads during outages (within the battery’s capacity and your backup panel design).

Here’s how solar can support household energy independence:

• You can reduce exposure to rising utility rates and unpredictable billing.

• You can keep critical circuits running during outages when you add battery storage.

• You can reduce reliance on imported fuels that influence electricity prices.

• You can keep more energy spending local by purchasing power generated on your property.

6. Solar panels may increase your home value

Installing photovoltaic panels has the potential to boost your property's market value.

Research from Fannie Mae and the Lawrence Berkeley National Laboratory shows solar homes fetch prices about 1% higher than non-solar homes. For a $500,000 home, this would mean a price increase of $5,000. This average covers many years and states, so there can be instances in local markets where having solar boosts your home value much more than 1%. 

You'll get the most benefit if you own rather than lease your system. You’ll also benefit more if the solar system is relatively new. Buyers can be turned off by systems that are 20 years old or older.

7. Incentives and rebates make installation easier

The financial incentives available for residential solar installations make the upfront investment more manageable. You'll find multiple programs at federal, state, and local levels that can notably reduce your costs.

Here are some examples:

1. State-specific rebates or property tax increase exemptions

2. Utility company cash refunds that vary by location

3. Performance-based incentives that reward you based on your system's energy production

Many utilities offer additional rebates, and some states provide special programs for low-income households, making solar adoption even more accessible.

Cons of solar panels for your home

Now let’s consider some of the main drawbacks of solar panels.

1. High initial cost requiring cash or financing

While you can usually save substantially over the long term, solar panel installation requires an upfront investment. We found the average 5 kW system costs $17,823 before incentives. You’ll save the most over time if you can pay with cash. Taking out a loan is the next best option, while we don’t recommend solar leases or power purchase agreements since you don’t own the panels..

2. Energy output is weather-dependent

A practical “con” in the solar panel pros and cons list is variability: solar production rises and falls with sunlight, seasons, and shading. Panels don’t generate at night, which is why most solar homes remain grid-tied—solar covers daytime loads, and the grid covers nights and low-production periods.

Cloud cover, wildfire smoke, and snow buildup can all reduce output. You can reduce losses with good system design, proper tilt/placement, and routine cleaning, and you can shift more usage to solar hours with smart appliances. Batteries can also help, but they add cost (another key tradeoff).

3. Not all roof types work or have enough space

Another frequent drawback when weighing solar panel drawbacks is whether your roof can physically support a productive system. Solar needs enough unshaded surface area, and roof orientation and slope affect output. For example, a 7 kW system may need around 23 panels and roughly 495 square feet of roof area. The average residential roof is about 1,700 square feet, but usable solar area can be far less due to vents, valleys, dormers, and shading. 

If you're dealing with limited roof space, you might need to weigh ground-mounted options or high-efficiency panels that produce more power in a smaller area. But sometimes your roof just isn't the best for solar, and it’s good to realize this before pouring money into an installation.

4. Adding energy storage can be expensive

Energy storage is necessary if you want security during outages. You'll need to budget between about $7,000 and $20,000 for a typical home battery system. Installation costs about $1,300 per kWh of storage. So, you might pay up to $13,000 for 10 kWh of storage or $26,000 for 20 kWh.

5. Negative impacts of solar manufacturing

Solar panel manufacturing has some environmental drawbacks that can be overlooked in discussions about renewable energy. This includes:

1. High energy consumption from coal-powered manufacturing facilities

2. Extensive water usage for cooling and cleaning processes

3. Possible release of hazardous chemicals like hydrofluoric acid and sodium hydroxide

4. Mining operations that generate pollution and greenhouse gases

These manufacturing challenges contribute to both local and global environmental concerns. Worker safety is also a concern, as exposure to silicon particles can cause Silicosis, requiring strict safety protocols in production facilities.

6. Solar panels change the look of your home

Aesthetic impact is a real “con” for some homeowners comparing pros and cons of solar. Standard panels are roughly three by five feet and usually come in dark blue or black. Alternatives like solar shingles can blend into a roofline more cleanly, but they often cost more and may produce less energy per dollar depending on the product and roof layout.

Glare can also be a concern in certain placements, especially at low sun angles. Reputable installers can assess angles and placement to reduce risk, but you can’t eliminate every visual issue in every neighborhood.

7. Solar panels wear out (over decades)

Solar panels experience a gradual performance decline over time. Panels lose up to 2% efficiency in the first year and 0.3% to 0.8% efficiency per year after that. After 20 years, panels are about 85% to 92% efficient.

Here’s what affects solar panel longevity:

1. Light-induced degradation within the first week of installation.

2. Temperature fluctuations accelerate aging.

3. UV exposure breaks down cells.

4. Moisture infiltration through microcracks compromises internal components.

Your solar panel manufacturer will guarantee minimum performance levels for 20 to 40 years depending on the brand.

Bottom line: Are solar panels worth it?

Overall, we think solar energy's benefits outweigh its downsides for most homeowners. With an average payback period of 10 years before incentives, installing solar panels is usually worth it if you live in an area with enough sun. That said, it’s important to have a solar company assess your property to see how viable it is for your location.

Solar pros and cons FAQ

Below are a few frequently asked questions about the benefits and downsides of solar panels.