Electricity cannot be basically saved.
This is a possible only for a small amount of electricity to the last technology though there is a machine that accumulates electricity from a domestic power supply like the battery.
In the ordinary family of the contemporary society that should always turn on the refrigerator and the lighting, it is not useful securing the electric power of being able to cover them for a long time.
Therefore, the electricity invented by the photovoltaic generation cannot be said that it is turned at another time zone even if remaining and it uses it.
However, it is not necessary to take a pessimistic view of it.
It is because there is use equal with it even if it is not possible to save it.
Because the electricity that collects in the solar panel, and remains can be sold to the electric power company.
When the system of the photovoltaic generation is bought, the one electric power company and “Selling of electricity to a power company contract” is connected.
“Power purchase agreement” is exchanged with the electric power company between the ordinary families, and originally, electricity can be bought, and selling it only no purchase it if the contract that electricity can be additionally sold is exchanged becomes possible.
Surplus electricity is basically sold off by the automatic operation in the solar panel.
Therefore, how much electricity was sold is not understood if details are not seen or is asked and can be understood by the selling of electricity to a power company meter ignorantly do not seem.
There is “[Den] ..affording.. meter” in each home, and, as a result, when “Selling of electricity to a power company contract” is exchanged, the selling of electricity to a power company meter is set up there though the electric power used is understood.
Electricity is bought very much if it is seen, and how much it sold it is understood at once.
Because this meter is switched by the automatic operation, the resident in the house need not operate it.
