A definitive guide to solar energy and its advantages and drawbacks
The modern world is characterized by an overwhelming population explosion and a consequent tussle for natural resources. The fast-depleting natural resources supply poses a serious threat to future generations, causing a dire need for sustainable alternatives. Solar energy is among the most commonly utilized alternative fuel sources today and is being utilized in homes and offices at small-scale and large-scale levels. This article discusses how solar energy works, its advantages and drawbacks, and its functions: How does solar energy work? Extraction of solar cells : Solar energy is powered by panels made of solar or photovoltaic cells, generated by blending melted crystalline silicon with gallium or boron. Each silicon ingot or “wafer” thus formed comprises a positively charged and a negatively charged silicon layer. Manufacturing of solar panels : These solar cells are used to manufacture large, black solar panels. The silicon semiconductors in these panels absorb sunlight to generate electricity. Electricity generation : The positively and negatively charged silicon layers in the ingots in solar cells form an electric field in the panel. When the panels absorb sunlight, the electrons in the ingots separate from the atoms. The electrical field around each wafer sets these electrons in motion, generating direct current (DC), which is converted to alternating current (AC) and utilized in homes and offices.
