Renewable Energy Faldu Smeet (16PGCL005) Renewable energy is energy which is generated from natural process and are continuously available. This includes sunlight, geothermal heat, wind, tides, water and biomasses. Renewable energy can be called as a green energy like as an example of sunlight, which is used for electricity, cooking purposes and it has variety of uses in industry as well as commercial. Renewable energy is money saving because it’s like one-time investment. To build stronger economy
country. It is the job of government to provide enough electricity to the industry as well as to private sectors and commercial home usage. There are different ways for the generation of electricity based on the optimum conditions (weather, temperature, wind conditions, natural resources available). Different countries in the world are taking step to use the appropriate source of electricity generation to stop pollution of to cater the problem
3. Wind turbine 3.1 Working of wind turbine: Wind turbine can be defined as a fan consisting of blade/blades that rotate due to blowing wind. A gear box is used for converting energy from one device to another device using mechanical method; hence, it is termed as a high-precision mechanical system. There are different types of wind turbines, but the frequently used wind turbines are horizontal axis turbines and vertical axis turbines. The figure shows different blocks of the wind turbine. Figure
earth. Steam is delivered to drive the turbine which powers the generator and when it cools, it condenses to water which will be injected back into the ground to be reused and to maintain a constant pressure in the reservoir (Nersesian, 2010). The main benefit of geothermal energy is that there is limitless heat from the earth and it is constantly available regardless of season or climate (European Renewable Energy Council [EREC], 2010). Some disadvantages of geothermal energy are drilling deep
example, wind power creates jobs does and causes no pollution, similarly geothermal plants do not require fossil fuels and are sustainable. Alternatively, wind cause noise disturbances and geothermal plants are expensive. So, which energy source is best to produce electricity? Coal energy is widely used as it is the most abundant fossil fuel and is becoming more sustainable by technology development (World Coal Association, 2012). However,
of energy is increasing, limited resources of fossil fuel and their cost is increasing the requirement of renewable energy sources. This resources are basically a part of Earth's natural environment .This are obtained from natural resources such as wind, biomass, sunlight, green energy, tides, and geothermal energy. Electricity generation is one of their important application. Renewable energy such as solar energy is obtained from sunlight and has various applications such as heating, cooking etc
solar energy and are terrible places for solar panels, and they are also not reliable when you have any type of cloud cover where the sun is blocked. Also the solar panels can only use 15-20% of the sunlight it captures. But the advantages greatly outweigh the disadvantages when it comes to saving a dying
Damming rivers for inexpensive hydroelectric power should be limited because it contributes to global warming, creates barriers along the migration routes for fish, creates damaging greenhouse gases, and eats up valuable land resources. The first advantage of having dams is water supply. Water is a valuable, natural resource
main advantages of solar energy are that it is clean, able to operate independently or in conjunction with traditional energy sources, and is remarkably renewable (Lewis & Nocera, 2006). The main disadvantages are that it is currently more expensive than traditional energy, and the availability of solar radiation varies from day to day, and from season to season (Lewis & Nocera, 2006). 5.2 Wind power Wind power involves converting wind energy into electricity by using wind turbines. A wind turbine
electricity more efficiently. Single-crystal cells, Polycrystalline cells, and Amorphous silicon are part of making photovoltaic panels. These solar panels convert sunlight directly into energy. The heat collectors must first create steam to make turbines spin. Single-crystal cells are made in cylinders and sliced into round or hexagonal wafers and this kind of panel is more expensive. Polycrystalline cells are made of molten silicon cast into ingots or drawn into sheets, then sliced into squares