2. INTRODUCTION
Harnessed radiant light and heat from sun.
Important source of Renewable Energy.
With the amount of solar energy obtained at the surface of the
planet is twice as much the power produced in non-renewable.
Characterized as
Passive solar
Active solar
3. SOLAR ENERGY
1.Solar energy is simply energy provided by the sun .This energy is in the
form of solar radiation, which make the production of solar electricity
possibleThis is powerful source of energy
2.It is consider as Renewable energy because .
• It used to convert the sun power into electricity dose not produce smoke
(carbon dioxide & other air pollutant
• Tapping the sun energy dose not usually destroy the environment.
• solar cell are devices that convert light energy directly into electrical
energy .
• You may have seen small solar cell on calculator or some mobile phones
• Larger solar cell are used to power satellites in orbit around the earth
• It is also called P.V DEVICE
4. Advantages
of solar
energy.
You can save money .
Solar Energy is abundant .
As long as there is light .
Sunshine is free.
Environmentally friendly .
5. Disadvantages
of solar
energy. High initial capital outlay.
Dubious reliability.
Availability of sunlight.
Polluting materials used in solar panels .
The efficiency question.
6. INTRODUCTION
Winds are horizontal movement of AIR from an area of HIGH
pressure(H) to an area of low pressure(L).
Wind energy is a kinetic energy associated with movement
of large masses of air.
It is clean, cheap, and eco-friendly renewable source.
Wind energy is utilized as mechanical energy with the help
of a wind turbine.
Moderate to high-speed winds, typically from 5m/s to about
25m/s are considered favorable for most wind turbines.
The electric power generation through wind was first
proposed in Denmark in 1890
7. WHAT IS THE
WIND TURBINES
?
A wind turbine is a rotating machine which converts the
kinetic energy in wind into mechanical energy.The
mechanical energy can be converted into electrical
energy, or it can be used to pump water or grind
crops. If it is used to make electricity, it can be called
a wind turbine, but if it is used to grind or pump, it is
called a windmill.
8. Advantage
of Wind
Turbine.
1.Wind energy is friendly to the surrounding
environment, as no fossil fuels are burnt to generate
electricity form wind energy.
2.Wind turbines take up less space than the average
power station.
3. Newer technologies are making the extraction of wind
energy much more efficient.
4.Wind turbines are a great resource to generate energy
in remote locations, such as mountain communities and
remote countryside.
5.When combined with solar electricity, this energy
source is great for developed and developing countries to
provide a steady, reliable supply of electricity.
6. Birds face many hazards but wind turbines only cause
0.01% of bird fatalities
9. Disadvantage
of Wind
Turbine
1.The main disadvantage regarding wind power is down to
the winds unreliability factor.
2.Wind turbines generally produce allot less electricity than
the average fossil fuelled power station.
3.Wind turbine construction can be very expensive and costly
to surrounding wildlife during the build process.
4.The noise pollution from commercial wind turbines is
sometimes similar to a small jet engine.
5.This is fine if you live miles away, where you will hardly
notice the noise, but what if you live within a few hundred
meters of a turbine.
6.This is big Disadvantage of wind collisions with buildings
cause 58% of fatalities!
10. Wind Turbine Compare of Solar Panel
• We have harnessed wind for thousands of years:
• 1.Transport 2. Agriculture
• 3. PowerWind turbine blades rotate at 15-20 rpm generating electricity Providing power to the national grid-----powering local homes and
businesses A wind turbine uses less than 1 acre of land 1 substation 1 crane padThe land can still be farmed right up to the turbine base. Wind
turbines spin 70-80% of the timeThe UK is the windiest county in Europe—receiving 40% of wind…The UK has 1 turbine per 100 km2 Germany
has 7 Denmark has 11
• `1 Wind=1219 Homes
• 1 Wind=13,479 fridges
• 1 Wind=2,80,00,000 kettles boiled
• 1 Wind=16,000 solar panels
• High Light: Which is enough to cover Manchester United’s football pitch 4Times 100% Successfully.
11. • Companies can benefit fromWind Power.
• • Reduced energy costs.
• • Long-term energy price security.
• • Materially reduced carbon footprint .
• At present in UK 7 in 10 people support wind power, rising to 79% aged 18-44 & 88% of scots
want a future based on renewables.
