10 Jan 8 beliefs about solar energy that are not entirely true

Solar photovoltaics has gained great popularity in recent years due to its economic and environmental benefits. However, despite being a mature and proven technology, there are still many myths and misunderstandings about it.

In this post, we will analyze some of the most common myths about solar energy, and discover the realities behind these beliefs.

Belief 1: “Solar panels don’t work on cloudy days”

Solar panels can generate energy even when the sky is overcast . The reason is that scattered light, which is the light that is scattered in the atmosphere due to clouds, still reaches the Earth’s surface, although they will not produce the same as on a bright day.

Solar technology has advanced enough to capture even scattered light in less favorable weather conditions, allowing photovoltaic installations to continue generating energy, so even though energy production on a cloudy day is lower than on a sunny day, solar panels still generate electricity. In fact, studies have shown that photovoltaic systems can generate between 10% and 30% of their maximum capacity on cloudy or partly cloudy days. This is a crucial point to keep in mind, as many regions experience cloudy or rainy weather in some months of the year, but that does not mean that solar energy is not a viable option.

In addition, storage systems such as solar batteries allow energy generated on sunny days to be stored and used during times of low production, such as at night or on cloudy days. This further increases the viability of solar systems in areas with variable climates.

For example, in Germany they are leaders in solar energy production despite the infrequency of clear days.

Belief 2: “Solar energy is not profitable in cold areas”

It is a commonly accepted idea that solar energy is only useful in hot climates. However, solar panels are negatively affected by high temperatures in generating electricity. In fact, solar panels can be more efficient in cold climates.

Why? Because, although excessive heat can reduce the efficiency of some types of solar panels (e.g. silicon solar panels), low temperatures help keep them operating at optimal performance. In cold conditions, solar panels can operate more efficiently, as heat buildup on the panels reduces the ability to convert sunlight into electrical energy.

This is not to say that cold areas are immune to the lower amount of solar radiation in winter, but in regions with cold, sunny winters, solar systems are still a great option. In places like Canada or Germany, where winters are long and cold, solar energy remains a key source of renewable energy.

Belief 3: «Solar panels require a lot of maintenance»

Many people believe that solar panels need constant and expensive maintenance to keep them running properly. However, photovoltaic systems are fairly low maintenance once installed.

Solar panels have a lifespan of 25-30 years, and during that time, the maintenance required is minimal. The most important thing is to make sure that the panels are clean (especially in dusty areas or with a lot of snow buildup) and that there are no shadings that can reduce efficiency. For most systems, an annual inspection is enough to make sure everything is working properly.

In areas with little dust buildup or frequent rainfall, solar panels can be cleaned by rain and do not require constant attention. Aside from this, maintenance includes checking the cables, the inverter (the device that converts solar energy into usable electricity), and the batteries (if you have a storage system). In short, maintenance is simple and inexpensive compared to other energy sources.

Additionally, many vendors offer long-term performance guarantees, providing peace of mind and technical support should any issues arise.

Belief 4: «Solar energy is too expensive and not profitable»

In the past, the initial cost of installing solar PV systems was quite high, leading many people to believe that solar energy was not cost effective. However, the price of solar panels has dropped dramatically in recent years thanks to technological advancements and increased adoption of this technology globally.

With government subsidies and tax incentives, homeowners can recoup their investment within 5-10 years, depending on the size of the installation and energy consumption. After this period, the electricity generated is virtually free, allowing for significant savings in the long run.

Belief 5: «Solar panels are not aesthetically appealing»

Another common concern is that solar panels are ugly or do not fit well with the aesthetics of a home or building. Although the first solar panels could look large and unattractive, today there are more integrated and discreet designs. All manufacturers without exception are clearly betting on producing photovoltaic installations that are increasingly aesthetic and integrated into homes and buildings. This effort has given rise to a new scenario in which a sort of “battle for photovoltaic beauty” is being fought. One scenario of this battle is the adaptability of the installations to architectural structures such as roofs and covers. Some manufacturers even offer tile-type solar panels or panels integrated directly into the facades, which makes them look more harmonious with the aesthetics of the home or building.

Belief 6: «Solar energy is not enough to power a house»

This will depend on the characteristics of the installation and the energy that the house needs to cover all consumption. Before carrying out the installation, a study of the specific needs of the house or industry must be carried out, to see the power that is needed, and a study of the area where the installation is going to be carried out, to calculate spaces, and according to these studies an installation with specific characteristics is proposed. With an adequate installation, it is possible to cover 100% of the energy consumption of a home, especially if it is combined with storage batteries, which allow the use of solar energy at night or in times of low solar radiation, or generator sets. Today, many marketing companies such as Fenie Energía, have the possibility of making a contract with a solar wallet, which will quantify the surplus and deduct it from the monthly bill, potentially leading to bills at zero cost.

Belief 7: «With solar energy you are left without light at night»

Although solar panels only generate electricity with solar radiation, you will never run out of electricity because if you have a self-consumptioninstallation you are still connected to the electricity grid, and if you have an isolated installation , you will store the surplus energy produced during the day to use it when you need it most. In case the batteries run out, the emergency generator will come into operation.

Belief 8: “Solar energy is not reliable”

Some people think that solar energy is not a reliable source because it depends on the sun, which does not shine all the time. However, this is a misconception. Solar energy is as reliable as any other energy source if used properly.

In fact, modern solar systems are designed to be highly efficient and stable. Moreover, by complementing solar energy with storage solutions (batteries) or even with a generator or connection to the power grid , a continuous and reliable supply of energy can be guaranteed, even at night or on cloudy days.

Conclusion

In conclusion, solar energy has far surpassed many of the false beliefs that surrounded it; the reality is that it is a mature, efficient and increasingly accessible technology. Today, photovoltaic installations are an economically viable, environmentally friendly and reliable option for generating energy. Now that we have debunked some of the most common beliefs, we hope that you have a clearer vision of the real benefits of solar energy.

If you are considering making the switch to solar energy, please contact us for a personalized diagnosis of your needs and to explore the most suitable options for your situation. At Soma GenPower we are experts in the installation of photovoltaic solar energy systems . We invite you to see our installation section and visit our online store for electrical accessories .