Activity : Project research.
Objective :
- Better understanding of the project.
- Better understanding on working principle of Solar, Wind and hydro energy.
Method :
- Do some research and comparison on the internet.
Result :
What is Renewable Energy?
-Renewable energy is generally defined as energy that is collected from resources which are naturally replenished on a human timescale, such as sunlight,wind ,rain, tides, waves, water and geothermal heat.
-In this project, it involve of 3 element of renewable energy which is wind,sunlight and water.
What is Solar Energy
-sun is probably the most important source of renewable energy available today.
-Two main types of solar energy systems are in use today: photovoltaics, and thermal systems
Solar photovoltaics
Photovoltaic systems convert solar radiation to electricity via a variety of methods. The most common approach is to use silicon panels, which generate an electrical current when light shines upon it.
Solar thermal systems
Solar Thermal Systems seek to store heat from the sun that can be used for a variety of purposes. Many different approaches can be employed here, including active systems, such as solar hot water heaters, and passive systems
Working Principles
What is Wind Energy?
-is the use of air flow through wind turbines to mechanically power generators for electricity.
-Wind turbines convert the kinetic energy in the wind into mechanical power. This mechanical power can be used for specific tasks (such as grinding grain or pumping water) or a generator can convert this mechanical power into electricity
-Wind turbines cannot work if there is no wind, or if the wind speed is so high it would damage them
-Wind turbines are usually sited on high hills and mountain ridges to take advantage of the prevailing winds.
Working Principle
- http://www.buzzle.com/images/buzzle/how-does-wind-energy-work.jpg
- http://extension.psu.edu/natural-resources/energy/what
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