Since the sun tax, a regulation that was established in 2015 and that imposed numerous obstacles to be able to use solar energy self-sufficiency in private homes and companies, no longer exists, we can take advantage of the energy self-consumption. To do this, we must know everything related to photovoltaic installations. We are going to dedicate this article to explain everything you need to know to enjoy your own photovoltaic installations both in the private and business fields.
If you want to know more about photovoltaic installations, this is your post.
Paradigm of photovoltaic installations
Thanks to the elimination of the solar tax, photovoltaic installations with a power of less than 100 kW no longer need to be registered. In addition, thanks to ecological transition policies, several homes will be able to benefit from the solar tax. shared self-consumptionThis becomes a valuable option for housing in communities or apartment buildings, where more than 65% of the country's population lives.
Those who choose to install solar panels at home and manage their own electricity no longer have to pay government fees for such self-consumption. This legislation eased the administrative processes required to enjoy self-consumption of electricity. The combination of this elimination of bureaucratic barriers, together with the fall in prices of solar panels, has boosted self-consumption in many homes and businesses looking for clean energy.
Investment and savings
When analyzing this scenario, we find two options: on the one hand, hiring a specialized company to install photovoltaic systems; or on the other, carrying out the installation yourself, depending on the available budget.
To illustrate, let's take the example of a single-family home in central Spain. The total cost of a photovoltaic installation can range between 9.000 and 11.000 euros.The average consumption of a Spanish household is approximately 3.487 kWh per year, equivalent to 9.553 Wh per day. The annual electricity bill is around 520 euros with an estimated price of 0,15 euros per kWh.
Making a basic calculation, the amortization of this investment will take around 18 years. From that point on, the savings will be close to 100% of the electricity consumption. Given that the useful life of solar panels is around 25 years, The total potential savings amounts to approximately 3.600 euros..
Maintenance expenses
An important aspect to consider is the cost of maintenance. In some cases, roofs need to be adapted so that the installations are correctly installed, which may require some additional reforms. However, a significant advantage is the availability of subsidies and grants from both local councils and provincial councils that can reduce the initial investment.
In addition, companies that install the panels often offer maintenance services, which may include periodic cleaning of the panels to ensure their maximum efficiency.
Individual photovoltaic installations
If you intend to install a individual photovoltaic installationThe first thing you need to do is identify the right type of solar panel for your home. The main types include photovoltaic panels, thermal panels, and hybrid panels, with the most common being photovoltaic panels. This type of panel captures solar energy and converts it into electricity through the photovoltaic effect.
However, these plates do not work on their own. They need a power inverter to transform direct current into alternating current. Storage batteries are also recommended.
Energy independence and sale of surpluses
To achieve energy independence In short, it is essential to have batteries that store excess energy, especially for days with less sun. In addition, it is equally important to think about how to manage the electricity that you do not consume instantly.
In this context, you can choose to sell the energy surplusCompanies like Holaluz allow the sale of surplus energy, which generates additional income and promotes green energy.
Grid-connected photovoltaic installations
Depending on the type of installation, photovoltaic systems can be connected o isolated from the electrical grid, and each has its advantages. Grid-connected installations allow the use of electricity generated by the system and resort to the grid when production is insufficient.
These facilities can be divided into those that manage energy surpluses and those that are not. When they are managed, the energy surpluses are fed into the grid and the consumer receives financial compensation.
How much does installation cost?
The price of an installation varies depending on the size, but in general, it can range from €5.000 to €11.000, depending on the power and additional components, such as batteries.
Subsidies and grants
Spain also has various subsidies that can significantly reduce the cost of installation, through tax credits, deductions in the IBI or regional aid.
Regardless of the size of the installation, it is important to keep in mind that self-consumption is profitable in the long term, with enormous advantages not only economic but also environmental.
The photovoltaic installations They have seen a significant boom since the elimination of bureaucratic obstacles such as the “tax on the sun”, and continue to be an interesting option for homes and businesses looking to save on their electricity bill, generate their own renewable resources and sell the surplus to obtain additional income. An installation that not only benefits the pocket but also the environment.