Photovoltaic solar energy has become an increasingly popular solution for the generation of clean and renewable electricity. Photovoltaic panels are devices that convert solar energy into electricity, and can be installed in a single-family home to reduce its dependency on the conventional electrical grid. In this article, we'll explore the benefits of installing PV panels on a single-family home, and the key factors to consider before doing so.
Advantages of installing photovoltaic panels in a single-family house:
Key factors to consider before installing photovoltaic panels:
Here are some very useful questions about a photovoltaic installation.
Generally speaking, it is recommended that a solar installation for a single-family home with four people provide between 5 and 10 kWp. This range of power will cover the energy needs of the home and, in the best of cases, it will generate a surplus of energy that can be injected into the electrical network or stored in an optional battery. It is important to note that the size of the installation required can vary depending on geographic location, the orientation and tilt of the solar panels, as well as the energy consumption of the home. Therefore, it is advisable to request a personalized study to determine the specific energy needs of your home.
The installation of solar panels without a solar energy accumulator can limit the use of the generated energy to a range of between 25 and 40%. However, if an accumulator is incorporated, the own energy consumption can increase up to 75%. Therefore, it is highly recommended to have a solar energy storage system in any photovoltaic installation to maximize its efficiency and profitability.
The estimated cost of a photovoltaic system without storage can range between 2,200 and 2,800 euros per kWp. It is important to keep in mind that these prices can vary according to different factors, so it is advisable to obtain a personalized quote. Likewise, it is possible to reduce these costs through subsidies and the fiscal optimization of the system, which can result in a more profitable and sustainable investment in the long term.
Discharging the electricity generated in the electrical network does not provide any or very few advantages to the operator of the photovoltaic installation. For this reason, it is more convenient to consume self-generated electricity. In addition, the acquisition cost of a kilowatt hour (kWh) of electricity purchased in the electricity market is currently around 28 cents, while the kWh of self-generated electricity costs 5 cents. In this sense, having a photovoltaic system will allow you to save significantly on your electricity bill and, in turn, contribute to the environment, since the energy generated comes from renewable sources.
Installations of self-consumption solar panels without surpluses must comply with the corresponding electrical safety regulations and technical regulations for their connection to the public network. Therefore, it is necessary to respect the rules indicated in the REBT regulation according to ITC-BT-40, as well as the general and specific requirements for energy measurement and management included in the metering point regulation.