THIS IS A PPT ON TIDAL ENERGY,WHICH HAVE FOLLOWING CONTAINS: A BRIEF INTRO FIRST POWER STATION FORMATION OF TIDES WHY MOON IS MORE EFECTFULL INCOMPARISION TO SUN FOR TIDES? 3 MAIN WAYS TO HARNESSED TIDAL ENERGY BENEFITS HOPE IT WILL BE USEFULL FOR YOU GUYZZ AND YOU LIKE MY WORK.

1. NAME: SIMRAN GUPTA ROLL.NO: 19/439
TIDAL
ENERGY
TIDAL ENERGY

2. TIDAL ENERGY
 Tidal energy is harnessed by converting energy from tides into useful forms of
power, mainly electricity using various methods.
 Although not yet widely used, tidal energy has the potential for future electricity
generation. Tides are more predictable than the wind and the sun. Among sources
of renewable energy, tidal energy has traditionally suffered from relatively high cost
and limited availability of sites with sufficiently high tidal ranges or flow velocities,
thus constricting its total availability. However, many recent technological
developments and improvements, both in design (e.g. dynamic tidal power, tidal
lagoons) and turbine technology (e.g. new axial turbines, cross flow turbines),
indicate that the total availability of tidal power may be much higher than previously
assumed and that economic and environmental costs may be brought down to
competitive levels

3. TIDAL POWER STATION :
 The world's first large-scale tidal power plant was
the Rance Tidal Power Station in France, which
became operational in 1966.
 It was the largest tidal power station in terms of
output until Sihwa Lake Tidal Power
Station opened in South Korea in August 2011. The
Sihwa station uses sea wall defense barriers
complete with 10 turbines generating 254 MW.[
RANCE TIDAL POWER STATION
SIHWA LAKE TIDAL POWER STATION

4. FORMATION OF TIDES:
 Tides are the rise and fall of sea levels
caused by the combined effects of the
gravitational forces exerted by the Moon and
the Sun, and the rotation of the Earth.
 On the near side of the Earth (the side
facing the moon), the gravitational force
of the moon pulls the ocean’s waters
toward it, creating one bulge.
 On the far side of the Earth, inertia
dominates, creating a second bulge.
 Gravity and inertia act in opposition on
the Earth’s oceans, creating tidal bulges
on opposite sites of the planet.

5. Sun V/S Moon :
 Earth's tides are ultimately due to gravitational
interaction with the Moon and Sun and the Earth's
rotation.
 The relationship between the masses of the
Earth, moon and sun and their distances to each
other play a critical role in affecting the Earth's
tides. Although the sun is 27 million times more
massive than the moon, it is 390 times further
away from the Earth than the moon. Tidal
generating forces vary inversely as the cube of
the distance from the tide-generating object. This
means that the sun’s tidal generating force is
reduced by 3903 (about 59 million times)
compared to the tide-generating force of the
moon. Therefore, the sun’s tide-generating force
is about half that of the moon, and the moon is the

6. BENEFITS :

1. Tidal heights facilitate the navigation into harbours and estuaries having shallow
‘bars’ at the entrance.
2. They help in desilting the sediments and in removing polluted water from river
estuaries.
3. Electricity can be generated by exploiting the huge energy potential of the tides

7. T
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