Through self-consumption, own production prices of between 5 and 10 cents / kWh can be achieved, figures significantly lower than the amounts that are being paid in the wholesale market or through any energy company Australian Email Address. Hence, the main barrier to entry is the installation of panels or mini-wind turbines. According to the rates of the installers, which in many cases are public, a house with an annual consumption of 6,000 kWh would have a photovoltaic installation for a price that would be around 6,000 euros, although it will depend on the quality of the installed components, as well as the implementation process, but especially the size of the plates. Although most of the current facilities are in single-family homes, there is also the possibility of promoting self-consumption in neighboring communities, where these systems would help reduce the bill of the community meter, which records expenses such as the light of the staircase or the elevator.
In any case, the final price of installing a solar panel self-consumption system is largely conditioned by the panels, which account for about 75% of the total price, while labor, meters or wiring can be around the 1,200 euros. Although all these amounts must be deducted from the aid that can be received, such as the reduction of the Real Estate Tax of up to 50% during a period of 5 years, which can already mean a saving of between 1,000 and 2,500 euros.
To this must be added the immediate savings that are achieved from the first months and that can be up to 300 euros in the largest invoices, hence the operators and companies that offer it consider that the initial investment can be recovered in little less of five years. Solideo, one of the companies that provides this service, gives a concrete example of a single-family house of 200 square meters, with two floors and a bill of 120 euros per month.
For the same it contemplates an initial investment in the installation of 6,500 euros, but a compensatory saving of 70 euros per month, to which the IBI bonus should be added. “If we add to this that the installation of photovoltaic solar energy plates for self-consumption has a 25-year guarantee, it can only be deduced that it is fully self-paid,” they point out from Solideo, an entity that defends that “self-consumption by solar energy is not only profitable economically speaking, it is also an investment in the future for our planet, since it is a green energy. And that is priceless”.
All this places self-consumption before its great growth phase in Spain, a country that due to the obstacles imposed by the sun tax and the lack of self-promotion, has lost ground compared to other countries. In 2020, Germany already exceeded two million solar roofs, its climatic reality being much less favorable than the Spanish one for this type of energy. All in all, the Next Generation funds from the European Union recovery plan will provide a boost for this type of energy, because 900 million euros have already been set aside for self-consumption, both solar and wind, representing 1.2% of total direct aid in Spain, which has a pending duty such as streamlining processes. In the United States, the possibility of obtaining permits in a week or even immediately to execute these facilities is raised, while in Poland it does not take more than a week to obtain administrative authorization, much shorter terms of the 14 weeks of media that are needed in Spain for similar processes.
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Therefore, self-consumption is gaining strength and interest among the customers of traditional operators, who see in this formula a way to achieve energy sovereignty, an effective remedy in the face of continuous increases in the bill. But the will, as with other green formulas such as the electric car, is subject to administrative obstacles and in some cases to dependence on aid, so public-private collaboration, always complicated, will once again be essential for Spain take advantage of the enormous solar potential it has, as is palpable in these months of heat and air conditioning consumption, which in the future could come from the same cause of its use socialposts.