Solar energy is the radiation from the Sun capable of producing heat, causing chemical reactions, or generating electricity. The total amount of solar energy received on Earth is vastly more than the world's current and anticipated energy requirements. If suitably harnessed, solar energy has the potential to satisfy all future energy needs.
would require on the order of 500 square feet of usable roof space (average of 1 kilowatt per 100 square feet) to install the solar panels. However, homes with a higher than average level of energy efficiency, such as those meeting ENERGY STAR® Homes Standards, may not necessitate an average-sized system.
DESIGN & SIZING PRINCIPLES Appropriate system design and component sizing is fundamental requirement for reliable operation, better performance, safety and longevity of solar PV system. The sizing principles for grid connected and stand-alone PV systems are based on different design and functional requirements.
Moreover, solar thermal and power technologies can also integrate with distributed energy storage systems and building energy demand response technologies to improve the flexibility and reliability of both the utility grid and buildings. Solar energy is inherently intermittent, thus solar energy itself is unstable and changes over time.
Solar energy potential Earth's photovoltaic power potential. The potential for solar energy to be harnessed as solar power is enormous, since about 200,000 times the world’s total daily electric-generating capacity is received by Earth every day in the form of solar energy.
the surface into space.The spectrum of solar radiation is close to that of a blackbody @ 5800 K.The amount of energy reaching the surface of the Earth radiant energy is incident on a surface per unit area ( W/m2 ) and is represented by the symbol G.Irradiation: is the incident energy per unit area (J/m2) on