Self-sufficient PV solutions

Current from PV systems can be used to ensure energy supply independently from the mains supply. The solar power generated is either used directly or stored in rechargable batteries. The direct current generated can be converted using an inverter to enable the use of conventional alternating current devices. An inverter is not required if only direct current devices are used. These extremely efficient PV stand-alone systems are often used in holiday homes or other buildings that are remote from the grid.

Stand-alone inverters can be used in combination with battery systems for constructing backup solutions for grid-connected projects. The solar energy is normally fed into the mains supply from a string inverter and reimbursed. In the event of a power failure, the solar energy generated and the energy from the battery system is used to cover personal requirements.