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Solar photovoltaic system is playing an important role to mitigate greenhouse impact on the planet. Also solar energy has the potential to support electrical loads and ensure higher network stabilities. In many countries, due to electrical generation limitation, regular outages are planned on a daily rotational sequence. The house owners rely on fossil fuel generator to support the electrical load during the planned outages. The work presented in this paper highlights the potential that PV system can play to support the load and eliminate the need for fossil fuel generator. Also the paper includes valuable information regarding the orientation and tilt for PV system to yield adequate output Lebanon. The case study which is based on real project installed in Tripoli Lebanon is also included.

The increasing demand for green sustainable energy source led to a worldwide increase in the installation of large scale photovoltaic (PV) farms. To ensure the PV farms compliance with safety and operational guidelines, earthing systems are essential component of the design. An adequate earthing system for low, medium, and high voltage areas of the PV farm ensures energy under fault condition and system malfunction are absorbed without exceeding the desirable limits. The work in this paper captures the soil resistivity and the earthing system requirements for each voltage level. The paper highlights the boundaries for combined or separate earthing system between low, medium and high voltage. Furthermore, the works focus on the system cost and maintenance without jeopardizing system integrities and safety compliance. Case study is also included.