Self-consumption is the generation of electrical energy through photovoltaic solar panels for own consumption. With this system, the consumer is at the center, since they have the ability to decide on the energy production and consumption they carry out.
Self-consumption photovoltaic installations connected to the grid are especially suitable for homes or companies that want to save on electricity bills and reduce dependence on the grid, taking advantage of a clean energy source that respects the environment.
Self-consumption adapts very well to homes, allowing you to create your own electricity. In addition, in the moments that you cannot consume it, the electricity that you generate can be poured into the network and your own marketer will compensate you monthly in the bill.
Industrial companies have two assets that make photovoltaic energy an especially profitable investment: working hours that coincide with the hours of solar production, and large roof areas. Thus, a lot of electricity can be generated and consumed at the same time, which maximizes its value.
Within each mode of self-consumption it is classified as individual, if there is only one consumer, or collective, if it involves several associated consumers. There is always the possibility of storing surplus energy that has not been consumed in smart batteries associated with the facilities. To benefit from any type of self-consumption modality, it is necessary that the consumer or associated consumers have an electricity supply contract.
There are two types of self-consumption systems: WITHOUT surpluses and WITH surpluses.
– Self-consumption WITHOUT surplus
Self-consumption facilities without surpluses are those that, connected to the electricity grid, have an anti-diversion system such that it prevents the injection of surplus electricity into the grid.
– Self-consumption WITH surpluses
Self-consumption facilities with surpluses are those that, in addition to supplying electrical energy for self-consumption, can inject surplus energy into the distribution network.
Within this group, the facilities WITH surpluses may be:
a) Self-consumption WELCOME TO COMPENSATION
The consumer uses the energy from the self-consumption installation when he needs it, being able to buy energy from the grid at times when this energy is not enough to satisfy his electricity consumption.
When not all the energy from the self-consumption installation is consumed, it can be injected into the grid and, in each billing period (maximum one month), the invoice issued by the marketer will offset the cost of the energy purchased with the energy poured. In no case may the result be negative.
b) Self-consumption WITH SALE TO THE NETWORK
All self-consumption with surpluses that cannot qualify for compensation or that voluntarily choose not to benefit from it will belong to this modality. In this case, the surpluses will be sold on the electricity market.