In Spain, self-consumption is regulated by a Royal Decree which sets out the charges that this system implies and the existing forms of self-sufficiency Argentina Email address. To get started in it, Endesa explains through its website that one or more solar panels are necessary, as well as a current inverter that goes from direct to alternating for its corresponding connection with the photovoltaic panels.
Regarding the modalities of self-consumption, there are basically two, a first based on self-sufficiency without surpluses, where the excess energy is not injected into the electrical network; and another supply of self-consumption with surpluses, with which in addition to obtaining its own energy, the surplus energy is destined to the transmission and distribution network. Here it is important to note that both producers and consumers can benefit from a surplus compensation mechanism on a voluntary basis, but they must meet several requirements: the energy source must be renewable, the total power cannot exceed 100 kW, there will be a single contract for associated consumption and auxiliary consumption, a surplus compensation contract must be signed and it is not possible to have a remuneration regime for the production facility.
In fact, it is the energy operators themselves who promote the self-consumption model on their corporate portals, as is the case with Iberdrola, which proposes another formula: mini-wind self-consumption, based on the use of this alternative energy and based on small mills. “The electricity obtained with these wind turbines is usually used to cover domestic needs, which makes it one of the favorite options when it comes to investing in electricity self-consumption,” explains the company.
The operation of mini-wind self-consumption is a smaller-scale reproduction of the wind energy model, where the rotor of a wind turbine produces electricity in alternating current. However, the rest of the system is similar to that of the photovoltaic version, with a regulator that manages the energy peaks and an accumulator that has the same function as in the solar panel system, although here the wind force is more continuous than the one. solar radiation.
These residential self-consumption alternatives allow consumers to obtain independence from the prices of the network, one of the great unknown for most and that is diluted between the subsections of the bill. It should be remembered that the price of electricity in Spain is set on a daily market, which is called the electricity pool, and where energy companies launch their offers daily for the next day in order to satisfy the needs of the market. After the daily auction, in which supply and demand face each other, the price is set according to the most expensive offer proposed to meet the demand for that day socialposts.