RENEWABLE SOURCE OF ENERGY

RESHMA G S

RENEWABLE SOURCE

• Renewable energy technologies from solar energy, wind power, hydroelectricity/micro hydro, biomass and biofuels/fuel cells for transportation.

• Renewable energy is energy generated from natural resources such as sunlight,wind,rain,tides,and geothermal heat which are renewable.

• DEFINITION: Renewable energy is generally defined as energy that comes from resources which are naturally replenished on a human timescale such as sunlight, wind, rain, tides, waves, and geothermal heat.

TYPES OF RENEWABLE ENERGY

• Hydropower

• Biomass

• Solar Energy

• Geothermal

• Wind Power

• Fuel Cells

ALTERNATIVE SOURCE OF ENERGY

• Alternative energy is any energy source that is an alternative to fossil fuel. These alternatives are intended to address concerns about such fossil fuels.

• Energy fueled into ways that do not use up natural resources or harm the environment.

• Eg: Fuel Cells.

BIOMASS

• Biomass is second to hydropower as a leader in renewable energy production and it has an existing capacity of over 7000 MW.

• Biomass as a fuel consists of organic matter such as industrial waste, agricultural waste, wood and bark.

• Biomass is the alternative energy generated through the conversion of biological materials and wastes into forms that can be used as energy source for heating, power generation and transportation.

• The largest use of biomass energy in Virginia is the forest products industry.

Biomass sources

• Some examples of materials that make up biomass fuels are:

• scrap lumber;

• forest debris;

• certain crops;

• manure; and

• some types of waste residues.

WIND POWER

• Wind energy represents 4,700 megawatts (MW) of installed electric capacity in the United States.

• Wind has been the fastest growing energy source in the U.S. over the last decade mainly due to very significant improvements in wind energy technology.

• Wind power is produced by the energy of the wind turning aerodynamic blades mounted to a hub. The hub is connected to a shaft that turns a generator.

• Large utility-scale wind turbines range in size from 50 kilowatts to over four megawatts. Smaller wind towers (under 50 kW) are suitable for residential and agricultural use.

Wind power or wind energy is the energy extracted from wind using wind turbines to produce electrical power, windmills for mechanical power, wind pumps for water pumping, or sails to propel ships.

EXAMPLES OF WIND ENERGY• 1.Wind Farms

• Wind farms are stretches of open land that often see very high winds. These open stretches of land are also often uninhabited by people, making them ideally suited to the large turbines on top of several stories high towers. As the wind turns the blades of the dozens or hundreds of turbines, electricity is generated and incorporated into the power grid.

• 2.Transportation

• Although it's not quite as necessary as it was even 200 years ago, wind-based transportation on bodies of water is still a viable method of getting from place to place, especially for recreation.

• 3.Home Energy Solutions

• Wind turbine technology has become cheap enough and effective enough that chain retail stores are even selling home turbine kits at affordable prices. These turbines generate electricity in much the same way that home solar power generators are available for residential use.

• .

WIND FIRMS IN INDIA

• VESTAS WIND SYSTEMS is a Danish manufacturer,seller,installer,and servicer of turbines. The company operates manufacturing plants in Denmark, India, Germany, UK, US etc.VESTAS has over 48000 wind turbines for a capacity of 55gw in over 70 countries on five continents.

• The Jaisalmer Wind Park is India's Largest operational onshore wind farm. This project located in Jaisalmer district, Rajasthan. The project, developed by Suzlon Energy, was initiated in August 2001 and comprises Suzlon’s entire wind portfolio – ranging from the earliest 350 kW model to the latest S9X – 2.1 MW serie. It's Installed Capacity is 1,064 MW.

FUEL CELLS

• A fuel cell is an alternative energy device, but it is not necessarily a renewable energy device. It is only renewable if the source of the fuel used is renewable.

• A fuel cell is an electrochemical device, like a battery in that it converts the energy from a chemical reaction directly into electricity and heat.

• But unlike a battery, which is limited to the stored chemicals within, a fuel cell has the capability of generating energy as long as fuel is supplied.

• Currently produced fuel cells combine hydrogen and oxygen without combustion to produce electricity.

• The oxygen comes from the air, while the hydrogen can either be produced from water (using electricity) or extracted from fossil fuels.

Examples of Fuel Cells

• Natural Gas

• Methanol

• LPG

• Naphtha

• Kerosene

THANK YOU…