5、接地系统贵州大学本科毕业论文(设计)第II页CQareaphotovoltaicsystemdesignAbstractWith the world's ever - increasing population and the development of economic, Human beings are facing the serious situation of a scarcity of fossil fuels and the pollution of the environment into the 21st Century
6、. Therefore, it is of great urgency to gradually transform the consumption structure of energy, vigorously develop the renewable energy source, and persisting in the course of sustainable development. As a new way of power energy production, solar power is clean, non – pol
7、lution, inexhaustible and simple with maintenance measures. It is both a primary energy source and a kind of renewable power resources. So it gets more and more attention. Governments have also introduced a series of policies and regulations to encourage and support the de
8、velopment of solar photovoltaic industry, which made a contribution to the rapid developm