Photovoltaic Solar allows electricity to be produced. The direct conversion of solar energy is done through a semiconductor material such as silicon. The basic element is the photovoltaic cell and the commercial product is called a photovoltaic module.
There are different types of photovoltaic systems:
Photovoltaic systems in isolated sites
They are used to electrify and power all electrical appliances in homes far from the electricity distribution network.
It will be a system equipped with batteries which will be able to store the energy accumulated during the day during the sunshine and restored later.
Photovoltaic systems connected to the grid
They allow you to become a producer of electricity. The photovoltaic modules then become an integral part of the housing envelope (roof, canopy, cladding, curtain wall).
The system produces direct current, which is transformed into alternating current by an inverter and then injected into the public distribution network. An electric meter measures the energy supplied to the network. A contract is signed with E.D.F. who agrees to buy back your production.
Example of photovoltaic installations connected to the grid:
Photovoltaic systems in self-consumption
These are on the rise but it is very necessary to study the consumption of your accommodation in order to offer the most effective solution. The self-consumption rate will be around 20% to 30% for accommodation, which is quite disappointing. In order to increase this value, it will be necessary to synchronize your consumption with production by shifting the use of the water heater, washing machine or even dishwasher during the day when there is sunshine in order to be able to increase it to 50%.
Finally, there is the possibility of adding batteries to reach 85% or more. The main thing is to find the optimal consumption investment configuration.
Within the framework of tertiary activities having a significant consumption of day at the same time as the production this type of installation is perfectly adapted because the level of self-consumption can be very high and will allow you to reduce your electric bill in a very large proportion without the need to add batteries.
