RENEWABLE AND NON-RENEWABLE ENERGY

SOURCES

THERE ARE TWO TYPES OF ENERGY SOURCES.THEY ARE :RENEWABLE ENERGY SOURCES NON-RENEWABLE ENERGY SOURCES

ENERGY SOURCES

RENEWABLE ENERGY RESOURCES€ SOLAR ENERGY€ HYDROPOWER ENERGY€ TIDAL ENERGY€ WIND ENERGY€ BIOMASS ENERGY€ GEOTHERMAL ENERGY€ WATER ENERGY

NON-RENEWABLE ENERGY RESOURCES€ PETROLEUM€ NATURAL GAS€ COAL€ NUCLEAR ENERGY

WHAT IS RENEWABLE ENERGY RESOURCES?An organic natural resource which can replenish to overcome usage and consumption, either through biological reproduction or other naturally recurring processes.Sources that we can use over and over again.¥ IT IS FREE ,GREEN AND CLEAN¥ SOLAR ENERGY AND WATER ---be used as AN ALTERNATIVE SOURCE of RENEWABLE ENERGY¥ wind energy and solar energy are renewable energy sources. 

RENEWABLE ENERGY SOURCES

TYPE OF ENERGY

SUN SOLAR ENERGYFLOWING WATER HYDROELECTRICITYPLANTS BIOMASS ENERGYWIND WIND ENERGY

SOLAR ENERGY£  radiant light and heat from the sun harnessed

using a range of ever-evolving technologies £  This energy can be collected and converted in a

few different ways.

WIND ENERGY£ The movement of the atmosphere is driven by

differences of temperature at the Earth's surface due to varying temperatures of the Earth's surface when lit by sunlight.

£ Wind energy can be used to pump water or generate electricity

BIOMASS ENERGY£  organic matter that has stored energy through

the process of photosynthesis.£  As plants grow, they use the process of

photosynthesis to thrive and grow. The photosynthesis process generates energy and when burned, plants release their energy. Dead plant matter and residue can also transfer into a renewable energy source by applying heat.

GEOTHERMAL ENERGY£ Geothermal is the process of transferring

heat from underground steam to heat up water

£ Can use to generate electrical energy

TIDAL ENERGY£ Generated by the tides of oceans and seas.£ It is used by tidal power station to generate

electrical energy

HYDROPOWER ENERGY£ Harnessing power from water is another way

to generate renewable energy.£  The force of gravity and the flow of water

work together to generate electricity £ This type of energy is extracted from the

gravitational pull of water falling from a higher source, such as using a waterfall to generate energy.

NON-RENEWABLE ENERGY SOURCESNon-renewable energy sources are those sources of energy that cannot be replenished after use,

They are used up much faster than they can be replaced.

The formation of non-renewable energy sources such as petroleum, natural gas and coal takes a very long time.

COAL♪ Most abundant fossil fuel resource.♪ HARD, BLACK, ROCK-LIKE SUBSTANCE♪ Burned in power stations to generate electricity as a source of heat for industry♪ Burning of coal can produce a lot of carbon

dioxide and some other toxic gases that can pollute the environment

PETROLEUM♪ Petroleum, crude oil is formed in a similar way as

coal, but it becomes a liquid trapped between layers of rocks

♪ Can be made by into gas, petrol, kerosene, diesel, oils

♪ Used in homes for cooking and heating, and in factories as a source of heat energy

♪ Used in power stations to generate electricity and to provide fuel for transport

♪ Producing petrochemicals such as plastics

NATURAL GAS ♪ Formed in the same way as petroleum and

trapped between layers of rock♪ Natural gas is trapped, compressed and

piped into homes to be used in stoves and hot water systems

♪ LPG (LIQUEFIED PETROLEUM GAS)is made from petroleum .It is used for cooking and heating at homes, factories.

Can be used as an alternative fuel to petrol

NUCLEAR ENERGY♪ Energy stored in the nucleus of an atom ♪ Hydrogen is usually used to produce

nuclear energy . This process is known as nuclear fusion

♪ Uranium is usually used to produce nuclear energy.This process is known as nuclear fission

♪ It is released in many forms such as HEAT, LIGHT, SOUND and RADIOACTIVE RAYS

THE USE OF SOLAR ENERGY

1) Solar energy is obtained directly from the Sun. It is a renewable energy source which can be continuously used.

2) Heat energy and light energy are produced when nuclear reactions take place in the core of the Sun.

3) Solar energy is used to (a) heat water in homes (b)produce electrical energy4) Solar cells absorb light energy and change it into

electrical energy. Solar cells are used in calculators, watches and satellites.

WHY we need to converse energy?• We use energy every day for lighting, cooking, heating and

cooling rooms, transportation, entertainment and manufacturing.• Most of the energy that we use comes from non-renewable

energy sources such as fossil fuels.• It is necessary to preserve fossil fuels( coal, petroleum and

natural gas) for the future and to encourage the use of more renewable energy sources from the Sun, water and wind.• Renewable energy creates very little pollution and is not

likely to run out in the future. THE IMPORTANCE TO CONSERVE ENERGY

•  Save Money : Usage of fluorescent bulbs , solar electricity may cost expensive initially but prove to be cost-effective in the long run. Many energy efficiency and conservation measures are better investments than the stock market or bank interest.

Reduce Carbon-dioxide : If Non-Renewable resources are used up to the limit they may also help in reducing the carbon-dioxide. Pollution from nuclear and coal power plants cause diseases like asthma, emphysema etc.

 Climate Change : Due to increase in the rate of these resources it also affect the climate greatly, Drought, Severe storms, floods, land loss, erosion of soil and heat deaths are few examples of climate change.

Ozone Layer Depletion : Ozone layer in the atmosphere protect us from ultraviolet rays from reaching the earth thus, making life on the earth possible.

 Global Warming : With so much dependence on Non renewable sources, global warming is taking place all over the world and the result which is glaciers are melting which is causing the rise in the sea level.

HOW TO CONSERVE ENERGY Turn off lights when you leave the room Take advantage of sunlight, if you can. During the day, work in rooms

with windows where you don't need artificial light. Turn your refrigerator down.  Clean or replace air filters as recommended. Energy is lost when air

conditioners and hot-air furnaces have to work harder to draw air through dirty filters. Cleaning a dirty air conditioner filter can save 5 percent of the energy used. 

Whenever possible, walk, bike, car pool Reduce the amount of waste you produce Plant shade trees and paint your house a light color if you live in a

warm climate, or a dark color if you live in a cold climate. Create a "bright room" in your household. When the sun goes

down, turn on the lights in just one central room in your house, and encourage your family to spend the evening hours there 

Replace electric lights with candles.  Power Down Your Computer: Enable "power management" on all

computers and make sure to turn them off when not in use.

Efficient use of energy 1.    Energy efficiency is the use of technology that requires

less energy to perform the same task.2. When we use energy to perform a task, not all the

energy is changed into useful energy. Part of the energy may be wasted as heat energy. Example:

An ordinary light bulb changes only 5% of electrical energy into light energy. 95% of the electrical energy is lost as heat energy.

3. Efficient energy use can be achieved by replacing the ordinary light bulb with a compact fluorescent light bulb that uses less energy to produce the same amount of light energy.

WAYS WE CAN USE ENERGY EFFICIENTLY≈Using energy-saving electrical

appliances≈Using fluorescent lamps which are

more energy efficient ≈Using public transport like buses

and light rail transit to go to work instead of using own car alone

≈Car pool help to reduce the use of energy

≈New building should be making use of solar technology and making maximum use of natural light