Notes and Study material for Exams
What is Geothermal Energy? Geothermal energy is heat from the Earth’s interior that can be used to generate electricity, heat homes and businesses, and provide hot water. The Earth’s core is very hot, about 6,000 degrees Fahrenheit (3,300 degrees Celsius). This heat comes from the decay of radioactive elements in the core. The heat travels … Read more
Combustion/Incineration Combustion is a chemical reaction that occurs between a fuel and an oxidizer, releasing heat and light. The most common type of combustion is the burning of fossil fuels, such as coal, oil, and natural gas. Combustion is also used in many industrial processes, such as the production of electricity and the manufacture of … Read more
Tidal energy is a form of hydropower that extracts energy from the rise and fall of tides. It is a renewable energy source that has the potential to provide a significant amount of electricity. Tidal energy is currently being harnessed in a number of countries around the world, and there is potential for further development … Read more
What is a pumped storage hydro power plant? A pumped storage hydro power plant is a type of hydroelectric power plant that uses two reservoirs at different elevations to store water. During periods of low demand for electricity, water is pumped from the lower reservoir to the upper reservoir. When electricity demand is high, the … Read more
Ocean Thermal Energy Conversion (OTEC) is a renewable energy technology that uses the temperature difference between the warm surface water and the cold deep water of the ocean to generate electricity. OTEC is a promising source of clean, sustainable energy that has the potential to provide a significant portion of the world’s electricity needs. OTEC … Read more
Wave energy is a form of renewable energy that can be harnessed from the waves of the ocean. It is a clean and sustainable source of energy that has the potential to provide a significant amount of power to the world. Wave energy is generated by the rise and fall of the waves. As the … Read more
Wind farm A wind farm is a group of wind turbines in the same location used to generate electricity. Wind farms vary in size from a single turbine to several hundred turbines covering an area of several square kilometers. The largest wind farm in the world is the Gansu Wind Farm in China, with a … Read more
The International Solar Alliance (ISA) is a global alliance of 121 countries, most of which are located between the Tropics of Cancer and Capricorn. The ISA was founded in 2015 by India and France with the goal of promoting solar energy and reducing dependence on fossil fuels. The ISA has three main objectives: To promote … Read more
Luminescent Solar Concentrators (LSCs) Luminescent solar concentrators (LSCs) are a type of solar cell that uses a luminescent material to convert sunlight into electricity. LSCs are made up of a thin layer of luminescent material, such as a dye or a semiconductor, that is sandwiched between two electrodes. When sunlight hits the luminescent material, it … Read more
What is Renewable Energy? Renewable energy is energy that comes from natural sources or processes that are constantly replenished. These include sunlight, wind, rain, tides, waves, and geothermal heat. Renewable energy does not produce greenhouse gases or other pollutants, and it is becoming increasingly affordable as technology improves. Why is Renewable Energy Important? Renewable energy … Read more