2023-07-14 09:57:43
As far away as it may seem, Spain began the year with barely 70,000 solar panel installations in homes, compared to a million and a half countries with much fewer hours of sunshine per year, such as Germany. However, self-consumption in our country is being boosted, among other factors, by the arrival of public incentives and the increase in the cost of energy retail. This has led to 2022 being the start of exponential growth that will lead to one million Spanish homes taking advantage of renewable energy from the sun by 2025.
The facility profitability photovoltaic solar and energy independence that they grant to households are some of the reasons why a boom in the self-consumption market. But before getting on the train it is important to study the different options well and choose the one that best suits our consumption. In the end, we are going to install photovoltaic panels in our home, which is, most likely, one of the most precious assets we will own and where we will spend a good part of our lives. That’s why, Samara Energya company that accompanies Spanish homes in the energy transition, has prepared this guide to errors to avoid when contracting a solar installation.
The most common mistakes in home solar installations
Do not install based on our consumption: Placing more panels than we need for our self-consumption generates a higher initial investment that will be recovered later than an optimized installation. “Doing a preliminary study of domestic consumption is vital to know the number of panels that each house needs,” says Manel Pujol, co-founder of Samara. Keeping in mind possible future additions such as electric vehicle chargers is also essential to avoid having to reform the installation in the medium term.Do not request a previous study: In line with the previous error, it is important to carry out an accurate and rigorous study before starting the installation. “It is perhaps the most important point in the process, since each household has consumption habits” they point out from Samara. This study is key to avoid making mistakes that generate additional costs in the future, such as having to install more panels or dragging an oversized and therefore more expensive installation.Not prioritizing the quality of the materials: The average life expectancy of solar panels is currently around 25 years. In addition, it must be taken into account that they are materials that will be exposed to inclement weather, so it is convenient to ensure a quality installation and with the latest technology to avoid future extra expenses for repairs or maintenance. In Samara, for example, they use tier 1 solar panels that guarantee energy production of more than 80% for 25 years.Not having qualified professionals: after the previous study, the tangible moment of the installation is also crucial to avoid future problems. Having qualified personnel who have passed the relevant training in occupational safety and who are capable of dealing with complex situations is transcendental. In this sense, it is important to mention that the sector has suffered a lack of qualified labor due to the increase in the demand for facilities. The training and heterogeneity of the installation teams are key to avoiding negligence in this process.Install on an unsuitable roof: the current state of the roof can pose a difficulty for the installation or make it directly unfeasible. “Professionals should examine it before assessing making an installation” says Manel Pujol. Other variables of this element, such as the location or the shadows, will mark the productive capacity of our installation. “As a general rule, the more south-facing the house is and the fewer shadows it has, the better,” says Pujol.
In short, we cannot leave out the process prior to the installation itself. To avoid scares and additional costs in the future, we must ensure that the installation is as personalized as possible according to our consumption, that we have the appropriate materials and that the team that is going to carry out the installation complies with all regulations.
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