Journal of Electrical Engineering and Electronic TechnologyISSN: 2325-9833

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Photovoltaics electricity

Rajendra Singh

Clemson University, USA

: J Electr Eng Electron Technol


With the advent of low-cost solar panels and our ability to generate, store and use electrical energy locally and intelligently without the need for long-range transmission, the world is about to witness transformational changes in electricity infrastructure. The use of photovoltaics (PV) as source of direct current (DC) power reduces the cost and improves the reliability of PV system. DC microgrid and DC nanogrid based on PV and storage can provide sustainable electric power to all human beings in equitable fashion. The electricity industry in developed economies is on the cusp of a dramatic transformation driven by a series of changes that includes emergence of rooftop solar and battery storage as the dominant distributed generation source, real time grid monitoring, emergence of microgrid and nanogrid in place of integrated electric grid, improved energy efficiency, advantages of direct current in place of alternating current, cyber and grid security, climate control and weather tolerant electric infrastructures. The continuous decrease in the cost of photovoltaics (PV) generated electricity is now making it possible to provide electrical energy to over 1.5 billion people who previously have had no access to electricity. Similar to the explosive growth of mobile phones worldwide (no need for land lines); PV combined with battery storage and a DC energy distribution system will provide electricity at very low cost. A PV and battery storage based DC Nanogrid is the most practical low-cost method of providing cost effective electricity to emerging and under developed economies worldwide.


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