design, photovoltaic systems, modules, grid
Significant efforts have being concentrated on low-cost, efficient, renewable, sustainable, safe and portable energy sources and systems. Recently, different photovoltaic technologies, solar cells, energy storage and power electronics energy solutions have been emerged and under intensive developments. Many factors affect the affordability, practicality and effectiveness of photovoltaic systems. Performance and capabilities of photovoltaic systems are predetermined and affected by individual components. The efficiencies of different types of solar cells are reported in Figure 1, while, the efficiencies of the battery storage and power electronics modules may reach 90 %. This paper examines organic and nano-composite solar cells which could be promising solutions for some applications. A complete featured photovoltaic systems are designed and documented with a focus on system and grid integration.