7 myths dismantled on solar panels and their efficiency

When it comes to installing solar panels, some people can hesitate to adopt such a system due to what they have listened to or read on the internet. There are many myths related to sun energy, but you will be surprised to discover that many of the common beliefs are false. In this article, we will dismantle 7 myths known on their solar panels and their efficiency.

Myth number 1: solar panels do not work on cloudy or winter days

The myth that the solar panels do not work in cloudy days or in winter is quite widespread, but it is not true. The functioning of the solar panels is based on Capture of sunlightNot the heat. Therefore, even in cloudy days, they can generate energy. In addition, it is possible to connect the storage batteries to the solar panels, in order to benefit from solar energy at night. It is true that energy production can decrease in low light conditions, but does not stop completely.

In addition, there are technological innovations that can increase the efficiency of solar panels in low light conditions. The double -sided solar panels, for example, can capture both front and rear light, allowing them to generate more energy.

As for the use of solar panels in winter, even then they can cause energy. Although the snow can cover the panels, most systems have an angle of inclination that helps to slide the snow. In addition, the reflection of light on the snow can even increase energy production.

Even if my myth persists, the reality is that Solar panels can work efficiently even in cloudy or winter days. With continuous evolution technology, the future seems bright for this form of renewable energy.

Myth number 2: solar panels are too expensive

In fact, the initial costs for the purchase and installation of solar panels can be substantial. Depending on their size and type, the price can vary from several thousand to tens of thousands of euros. However, these costs must be analyzed in the context Long -term savings.

Due to the fact that solar energy is practically free once the panels and functional, energy bills will decrease significantly. In addition, there is the Casa Verde program, which offers financial support for the purchase and installation of photovoltaic panel systems for the production of electricity. However, there are several tools for financing photovoltaic panel systems. Find out here!

Myth number 3: solar panels require expensive and difficult maintenance

Contrary to the common myth, solar panels It does not require complex maintenance. In reality, they need regular cleaning to make sure there is no dust or dirt that will block the sunlight. Depending on the position and environmental conditions, this can be requested once or twice a year, but it is not a task that requires a wide effort or special technical knowledge.

The costs for maintaining solar panels are also much lower than it is generally believed. This is also the reason why some producers offer between 10 and 25 years warranty For photovoltaic panels.

While the exact costs may vary according to the size of the system and position, in general they only include the cleaning of the panels and the periodic control of the system to make sure it works correctly. On average, annual maintenance costs for a residential solar panel system may vary between 500 – 1000 she, a much lower amount than the economies made by the use of sun energy.

Myth number 4: solar panels are not so effective

In recent years, the technology of solar panels and inverters has advanced considerably, with new types of panels and capable equipment capable of converting more solar energy into electricity than previous versions. The average efficiency of the solar panel has increased in the last 10 years from 15% to about 20% and continue to grow. [1]

However, you could ask you why they don't have a 100%efficiency rate. Part of the sunlight will be reflected by the panel or will be transformed into heat instead of electricity. In addition, solar cell materials cannot absorb all types of light that make up sunlight, such as infrared light. It is record efficiency for a solar cell at room temperature under normal sun protection is 39.5%, But these cells are too expensive to be profitable. [2]

The truth is that the sun produces a huge amount of energy. In an hour, in the terrestrial atmosphere, sunlight reaches sufficient to guarantee the electricity needs of every man on earth for a year. [3]

Given this huge source of energy, the solar panels available in the trade offer enough energy to meet the needs of your home. But solar technology continues to advance and improve every year.

Find more information on this topic in the article: Which are the most effective photovoltaic panels.

Myth number 5: solar panels cannot feed an entire house

The technology behind solar panels has evolved significantly in recent decades. Modern solar panels can generate enough energy to feed an entire house, even in regions with less favorable climate.

On average, a family needs approximately 10-20 solar panels To provide sufficient solar energy. However, the geographical position, the size of the house and the specifications of the solar panels can influence the exact number of solar panels necessary for your home. [4]

An essential role in the supply of a solar energy house plays storage batteries. These allow energy storage generated during the day for night use or cloudy days. Therefore, solar energy becomes a constant energy source, capable of guaranteeing the energy needs of a house throughout the year.

Myth number 6: solar panels can damage the roof

The myth that the solar panels can damage the roof of the house is common, but completely unfounded if we refer to a correct installation. It is essential to understand that, like any other construction or installation work, Success and duration depend to large extent on the professionalism and experience of the team that deals with the assembly. Therefore, to prevent any deterioration of the roof, choose a professional of trust to install.

It is also important to mention that, once installed correctly, solar panels not only do not damage the roof, but they even protect it. They act as a further layer of protection against elements, such as rain, snow and wind, being actually benefits for the integrity of the roof.

Myth number 7: solar energy is not reliable

In fact, solar energy is a very safe and reliable source of energy, provided that the panels are installed and maintained correctly. Even if weather conditions can affect energy production, this is not a big problem. Solar panels are able to generate energy even in low light conditions, Which makes them a source of constant energy and trust.

In addition, storage batteries allow the accumulation of excess energy produced during the day and its use when the solar panels cannot generate energy. Therefore, solar energy becomes a constant source of energy, not just an occasional source.

Following the dismantling of these 7 myths on solar panels, we realize that, in fact, these are a practicable, economic and efficient solution for the generation of energy. Solar panels can also work on cloudy or winter days, they are not excessively expensive, they do not require difficult or expensive maintenance and are very effective.

source

[1] https://www.ise.fraunhofer.de/content/dam/ise/de/documents/publications/stities/photovoltaics-report.pdf
[2] «Press press release: NREL creates a 1-riding solar cell with maximum efficiency.» NREL.GOV, 2022, www.nrel.gov/news/press/2022/nrel-creates-higest—sun-solar-cell.html#: ~: Text = Researchers%20at%20The%20U 20U.%20DePart.using%20Standard%201%2DSUN%20Cons. Access November 1, 2023.
[3] «Press press release: NREL creates a 1-riding solar cell with maximum efficiency.» NREL.GOV, 2022, www.nrel.gov/news/press/2022/nrel-creates-higest—sun-solar-cell.html#: ~: Text = Researchers%20at%20The%20U 20U.%20DePart.using%20Standard%201%2DSUN%20Cons. Access November 1, 2023.
[4] Baker, Sam. «How many solar panels do I need to feed a house?» Solar.com, 20 June 2023, www.solar.com/learn/how-many-solar-panels-do-a-to-stall/. Access November 1, 2023.