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.