Contents I. Introduction
Electricity consumption is increasing day by day all over the world. Electricity is generated from renewable energy sources in addition to conventional energy sources. The majority of generated electricity is originated from conventional energy sources such as coal, petroleum or natural gas that causes mostly carbon emission triggering the global warming. In addition, air pollution and earth temperature are increased due to fossil fuels. That is the main reason of studies on renewable energy sources (RES) such as wind and solar becoming more popular. The most popular of these is solar photovoltaic (PV) system. Because it is clean, it requires little maintenance, and can be easily located where the sunlight is sufficient [1]. Solar cells are made of monocrystalline and polycrystalline silicon materials convert sunlight to electricity. The monocrystalline cells are more efficient than others with regard to efficiency. However, they are more expensive than others in terms of cost. Electricity generation with PV systems are becoming widespread in all over the world due to technological development, decreasing cost of electronic equipment, government support in countries [2].
