Advantages and Disadvantages of Solar Energy

Solar energy is the source of energy that is emitted or supplied by the sun. For million years, sunlight has been giving life to all living creatures on this earth. Moreover, it is an endless source of energy and can be used for long if we know how to exploit and use it. Many countries around the world have focused more on green energy and especially solar cells. But there are some advantages and disadvantages of solar energy that need to be considered.

Advantages of solar energy

This energy is almost endless

Energy sources such as wind, water, coal … need fuels to be converted into electricity through the hydropower and thermal power plants. Of course, these materials are limited. Unlike them, solar energy does not require any fuel. It is an infinite and renewable source of energy.

This is a useful and long-term energy source for human in the future. It can be exploited in all regions of the world with available reserves every day. As long as the sun remains, we can still approach solar energy.

It helps reduce your electric bill

Although the initial investment in the solar system is quite high, the time it takes you to recover is very short. And after you have covered all of these costs, your monthly electricity bills will be reduced significantly. Solar energy does not require any fuel so its price is not affected by supply and demand on the market. That is why using solar energy is a relatively economical solution.

It helps reduce your electric bill

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In addition to saving electricity, you can also make extra money using solar energy. This happens when the amount of electricity you use is less than the amount generated by solar energy. Then, the excess electricity will be loaded back into the grid and the government will buy those amounts. If you are a bit quick mind, you will see a way to make money out of this. Selling excess electricity at high prices in the morning and buying from the grid at night at low prices will bring you incomes. What a bargain!

Environmental friendliness

Here is another important point on the list of advantages and disadvantages of solar energy. Solar energy is a green energy source and environmentally friendly. It does not emit any carbon, nitrogen oxide, sulfur gas, mercury, or any gas that is harmful to the environment. Especially it is 100% safe to human work when generating electricity. So solar does not contribute to global warming, acid rain or fog. In fact, it contributes to reducing harmful greenhouse gas emissions.

Since solar energy does not use any fuel in the electricity generation process, there are no storage, transportation or retrieval of fuel. It can be said that this is considered the best source of clean energy that nature gives us.

Discharging waste and pollution is inevitable in connection with the production, transportation, and installment of solar cells. However, this is a small percentage, as compared to the use of energy from other sources such as thermal power plants.

Low maintenance costs

Low maintenance costs

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Solar systems often last for decades, so they do not require much maintenance.

The reason is that the solar system has no moving parts so there will be no wear and tear.

If the problem occurs, the maintenance is almost free because the warranty period is quite long up to 30 years. You only need to keep them clean and replace the converter every 5 years.

Diverse applications

The main function of solar energy is to produce electricity and heat – two major forms of energy that help run most things in the world. In areas where there is no electricity grid, we can use solar energy to produce electricity for the residents. People have used this type of electricity for a variety of applications such as space heating and cooling through solar architecture. Moreover, solar energy can be applied to the distillation of drinking water and sterilization, daylight lighting, solar water heater, solar cooking…


Besides the great advantages that the solar cell brings above, the user will also encounter some of the following difficulties.

High initial investment cost

One-time cost to buy a photovoltaic system and install it is relatively high. These include the cost of purchasing solar panels, frequency converters, and other installation equipment.

However, you must remember that the production and supply of energy are then free. The solution to this problem is that you can borrow money from banks that offer incentives for green energy customers.

High initial investment cost

Image source: Cost of Solar Panels in the U.S. | EnergySage

High storage costs

Solar storage systems provide stability, especially when power outages occur or simply when the night comes. In those cases, the energy stored in the solar panels would work. However, the possibility of using energy all day long comes with expensive storage costs.

You do not need to worry too much about this because when the demand for human power is highest, the system also gets the most sunlight.

Dependence on the seasons of the year

When it comes to advantages and disadvantages of solar energy, a clear limitation of this power is that it cannot operate overnight. However, that is just the time of day. We are talking about its dependence on the weather throughout the year.

In comparison with other types of renewable energy, solar power is seasonal. The reason is that there are seasons like drizzly winter, the cloudy sky can block sun ray in some areas. Although solar power can still be absorbed in these days, the efficiency of the system will decrease. On the other hand, for sunny places all year around, this is not a problem.

The solution is to use solar energy in combination with purchasing energy from the public grid during periods of less sun.

High demand for interior

Not all households can meet the requirements of solar cell systems and make the most of their power. Solar cell batteries are very sensitive to their installation location. It means that if the shade is covering the place where you live then it is very difficult to exploit optimum solar energy. The solution for this is that you can connect to the grid to buy energy from another source.

In addition, the installation also requires large space in your home. Solar panels take a lot of space. Not all roofs are large enough to house the required number of solar panels.

The conclusion of advantages and disadvantages of solar energy

Currently, solar batteries are in constant development. Researchers through various methods have been trying to find ways to increase their efficiency further. While solar batteries now provide many benefits for homeowners and businesses, there are also some disadvantages of this energy. Therefore, as a wise consumer, you need to consider every aspect of this product carefully before making any decision. Consult the above list of advantages and disadvantages of solar energy and make a smart choice.

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