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A series of questions and answers related to solar photovoltaic (pv) systems. It covers fundamental aspects of pv technology, including the materials used in solar cells, how they are constructed, and their performance characteristics. The document also explores the history of solar cell development, different generations of solar technology, and various types of pv systems, such as grid-tied, off-grid, and hybrid systems. Additionally, it addresses the economic factors influencing the growth of solar pv, such as cost reductions and efficiency improvements, making it a valuable resource for understanding the basics of solar energy.
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Photovoltaic (PV) technologies Correct Answer - Generate power through semiconducting materials, known as solar cells, are then connected to form larger power-generating units knows as modules or panels. What is a single PV device called? Correct Answer - A cell - it usually produces 1 or 2 watts. What are the cells made of? Correct Answer - Different semiconductor materials - they are often less than the thickness of four human hairs. How do cells withstand outdoor environmental factors? Correct Answer - They are sandwiched between protective materials in a combination of glass and/or plastic. Solar PV cells - enhanced outer protection layer Correct Answer - The propriety layer offers unmatched UV resistance and transparency Solar PV cells - premium sunpower cells Correct Answer - These high-end cells provide superior efficiency (W/m2) wider light spectrum capture, longer lifespan and deeper black colour. This is a very thin layer of the overall cell Solar PV cells - advanced conduits; durability core Correct Answer - Robust internal conduits within multiple protective layers ensure lasting performance. Solar PV cells - shock absorbing layer Correct Answer - All solar cells and wiring embedded in a distinct shock-absorbing material, enhancing their longevity.
Solar PV cell - sandwich composite stiffener layer Correct Answer - A lightweight, high-tech core that optimally maintains structural integrity, offering near-metal properties without the delamination risk off combining metal with pelastics. How is power output of cells boosted? Correct Answer - By connection in chain to form larger units known as modules or panels. How can solar modules be used? Correct Answer - Individually or several can be connected to form arrays. How do solar cells/modules become a part of a system? Correct Answer - One or more arrays is connected to the electrical grip as part of a complete PV system. Due to the modular structure, PV systems can be built to meet almost ant electric power need. Who discovered the photovoltaic effect? Correct Answer - Edmond Becquerel - he determined light could increase electricity generation when two metal electrodes were placed into a conducting solution. Willoughby Smith Correct Answer - In 1873, discovered selenium has PV potenital William Grylls Adams' and Richard Evans Days Correct Answer - 1876 discovery that selenium creates electricity when exposed to sunlight. When was the first solar cell made? Correct Answer - In 1833, by Charles Fritts. The cells was made from selenium wafers. What are modern day solar cells made with? Correct Answer - Silicon
What is the capacity range of residential solar PV? Correct Answer - 1-50kW - installed on individual homes, often rooftops, for personal electricity use What is the capacity range for commercial solar PV? Correct Answer