Explore the pros and cons of solar panels. Learn more about the benefits and drawbacks of using solar energy to decide if it is the right choice for you.
What are the pros and cons of solar panels?
Renewable energy sources play an important role in reducing the energy sector's ecological footprint. Among the many green energy sources, solar energy stands out as one of the most promising. In 2023, it generated over 1600 TWh of electricity, exceeding the total annual energy consumption of countries like India, Russia, Japan, Canada, Brazil, South Korea, Germany, France, Saudi Arabia, and Indonesia.
To harness the sun's energy, we need to use solar panels, devices capable of converting sunlight into electricity. Our article will explore the pros and cons of solar panels.
Pros and cons of solar panels
Photovoltaic (PV) cells can convert the sun's energy into electricity. However, a single PV cell typically produces only 1 or 2 watts of power. Therefore, even a tea kettle, which requires 600 watts, requires a more efficient method of energy generation. Fortunately, when multiple PV cells are connected to a module, solar panels come into play.
According to the Department of Energy, PV technology operates as follows:
"PV materials and devices convert sunlight into electrical energy. A single PV device is known as a cell. An individual PV cell is usually small, typically producing about 1 or 2 watts of power. These cells are made of different semiconductor materials and are often less than the thickness of four human hairs. In order to withstand the outdoors for many years, cells are sandwiched between protective materials in a combination of glass and/or plastics. To boost the power output of PV cells, they are connected together in chains to form larger units known as modules or panels. Modules can be used individually, or several can be connected to form arrays. One or more arrays is then connected to the electrical grid as part of a complete PV system. Because of this modular structure, PV systems can be built to meet almost any electric power need, small or large."
Source: https://www.energy.gov/eere/solar/solar-photovoltaic-technology-basics
Undoubtedly, solar panels are increasingly gaining popularity. They are utilized by households, businesses, and governmental organizations to generate clean, sustainable, and cost-effective energy. Now, let's examine the advantages and disadvantages of solar panels.
What are the pros of solar panels?
Reducing ecological footprint
While solar panels create some carbon emissions during manufacturing, they have a small environmental footprint overall. This is because they do not produce emissions while generating clean energy.
According to The Renewable Energy Hub, a typical solar panel saves over 900kg of CO2 per year. This means it takes about 1.6 years for a solar panel to offset the emissions from its manufacturing process. After that period, they are actively reducing your carbon footprint.
Based on data from the Intergovernmental Panel on Climate Change report, solar panels have some of the lowest median carbon emissions compared to other energy sources:
- Wind (onshore): 11 gCO2/kWh
- Nuclear: 12 gCO2/kWh
- Wind (offshore): 12 gCO2/kWh
- Hydropower: 24 gCO2/kWh
- Concentrated solar: 27 gCO2/kWh
- Geothermal: 38 gCO2/kWh
- Solar PV (rooftop): 41 gCO2/kWh
- Solar PV (utility): 48 gCO2/kWh
- Biomass: 230 gCO2/kWh
- Gas: 490 gCO2/kWh
- Coal: 820 gCO2/kWh
Increased energy safety
Our reliance on fossil fuels is not sustainable. These resources are finite, and estimates suggest they will be depleted within the next 50 years. However, there is a bright side. Solar panels and other renewable energy sources offer an enduring solution. By harnessing the power of the sun, wind, and other renewable resources, we can ensure a safe and sustainable energy future.
Cutting energy costs
Solar energy costs significantly less than nuclear, gas, geothermal, and natural gas. Only wind energy is cheaper than solar energy.
Additionally, the cost of solar panels continues to decrease, as illustrated in the chart below.
Enhancing real estate value
Households and businesses that install solar panels on their properties can expect to increase the value of their real estate. According to a study conducted by Zillow, installing solar panels can increase real estate value by 4% and accelerate property sales by 20%.
Most components are recyclable
A typical solar panel consists of the following materials by weight:
- 76% glass,
- 10% plastic polymer,
- 8% aluminum,
- 5% silicon,
- 1% copper,
- and 0.1% other metals.
Most solar panel components can be recycled and reused in new products.
Long lifespan
One of the pros of solar panels is their long lifespan. On average, a solar panel can operate for 25-30 years, meaning it can provide clean and sustainable energy for decades following installation.
What are the disadvantages of solar panels?
Significant initial investment is required
One of the greatest drawbacks of solar panels is the substantial upfront cost required for installation. For a single household, installing a 6kW solar system can range from $10,000 to $35,000. Businesses requiring more energy may face even higher costs.
Production reliant on sunlight availability
Solar panels rely on sunshine to generate electricity, so they produce the most power during bright, sunny days. Places that get less sunshine overall might not be as well-suited for solar energy production.
Difficult to relocate
While solar panels significantly boost property value, relocating them after installation can be very difficult, sometimes even impractical, due to the integration of the system with the property's infrastructure.
FAQ
What are the pros and cons of buying a house with solar panels?
Are you interested in purchasing a property with a solar system? Let's examine the pros and cons of buying a house with solar panels.
Pros:
- Reduced energy costs
- Lower ecological footprint
- Capability for charging electric cars
- Potential increase in resale value
- Low maintenance requirements
Cons:
- Higher capital costs to purchase the property
- Potential rise in property insurance costs
What are the pros and cons of solar energy on the environment?
Solar energy is a topic that sparks intense ecological discussions. Let's learn more about the pros and cons of solar energy on the environment
Pros:
- Decreases reliance on non-renewable energy sources
- Generates zero carbon emissions during operation
- Many components are recyclable
- Suitable for residential and industrial applications
- Lifespan of 25-30 years
Cons:
- Carbon emissions during production
- Not all components are recyclable
What are the pros and cons of getting solar panels for businesses?
Businesses, not just households, can benefit from integrating solar systems. Here's a look at the pros and cons of getting solar panels for businesses.
Pros:
- Some countries offer tax incentives for businesses using renewable energy sources
- Solar panels can lower energy costs
- Renewable energy adoption can enhance business PR
Cons:
- Requires significant upfront investment
Conclusion
While solar panels present upfront costs and rely on sunlight availability, their benefits in reducing energy expenses, enhancing property value, and promoting environmental sustainability make them a promising choice for the future of energy production.