In fact, rather than buying a PV system, users buy the solution to their energy problems. Installing the system is what will make the solution available for them.

Just as an undersized system does not provide what is expected from him, a poorly installed system also might cause the energy needs of users not to be met, worse, it could be dangerous.

The installation of a photovoltaic system should comply with standards and result on a system working as specified by the designer. A state of the art installation is also an important system durability factor.

Some key points to consider when installing a PV system are the PV array orientation; and the location of the battery bank and balance of system.

• For best year round performance, a PV array should be mounted facing south for systems located in north hemisphere and facing north in south hemisphere. The correct tilt angle should be determined based on energy usage and also the local weather conditions at different period of the year. A mounting arrangement can allow the adjustment of PV array tilt to increase energy output.

• Batteries should be installed in a well ventilated enclosure with restricted access. Equipments in the enclosure should be readily accessible for maintenance.

• The charge controller is installed in the immediate close to the batteries. However, a minimum distance of 50cm should be respected.

• The inverter and the charger should not be exposed to the element. Wherever possible, the inverter and the charger should be kept away from the batteries and installed in a separate weatherproof and well ventilated enclosure.

• The generator, if there is one, should be kept away from users to minimize noise.