What is electricity self-sufficiency?

Solarstrom Grafik

LTW systems are designed so that they can be operated as independently as possible. Alternative energies that are not currently used are stored. If there is a need for energy, you can call up this previously stored energy again. Likewise, consumers can use energy, e.g. of motors when braking, can be stored back in the batteries. You can only feed this into the grid if the storage system is full and too much energy is produced. You always have the good feeling that you still have your electricity provider as a backup for bad winter days.

In the event of a network / power failure, the system automatically switches to island operation. There is no interruption of the supplied devices. Your house is completely UPS secured from the time of installation. And your photovoltaic system continues to produce in the event of a power failure.

As can be seen in the graphic on the left, it depends on the correct size ratio of the photovoltaic system to the LTW storage system in order to achieve an optimal degree of self-sufficiency. Basically, you increase your own consumption with every small battery system!

PV Austria recommends at least a 1: 1: 1 solution in Austria. (kWh consumption: kWp PV: kWh storage)

Solar Energie