Tidal Power

Tidal Powers Beginning

• First used around the 20th century
• Was a waterwheel
• Waterwheel was used for a long time
• Energy from flowing water powered other wheels
• These other wheels ground grain and cut wood

How Tides Are Made

• Tides are created the sun and moon's pull
• These tides happen twice each day around every 12 hours
• These tides from the sea happen at a certain place
• These certain places are due to where the sun and moon is

Tidal Power Plants

• One of the first tidal power plants is in Rance,France
• It still works to this day
• One of the largest tidal power plants is Shiwa Lake in South Korea
• Canada,France,China,England, and Russia all have potential for using tidal

Ways to get Tidal Energy

• Three ways to get tidal energy
• Tidal steams
• Dams
• Tidal lagoons

Tidal Streams

• Most generators are placed in tidal streams
• Tidal streams are fast flowing bodies of water that are made by tides
• Water turbines often are put in shallow waters
• This help make more energy
• The turbine blades turn slowly so wildlife won't get caught in the blades

Dams

• Dams are also a source of getting energy
• When the tide rises the gates are open
• When it is high tide the gates close creating a pool
• When the water is released is spins the turbines

Tidal lagoons

• Tidal lagoons is a body of water almost completely surrounded by a barrier 
• Can be man made or naturally made
• Tidal lagoons are pretty environmentally friendly 

Which is better?

• Dams cause great deals of damage to wildlife
• Easier way to make tidal energy is by using tidal streams
• Tidal streams are easier to put in and cost less
• Not much energy can be made from tidal lagoons
• Tidal streams and lagoons don't damage the wildlife as much as dams

Opinions

• I personally think tidal power is easier to use than wind power
• U.S might not have any good places to use this but other nations should
• Dams are destructive and hurt wildlife and should not be used
• Tidal streams are cheaper and environmentally friendly

Ways to Improve

• Engineers are trying to improve technology of tidal power plant generators
• There trying to do this so they can increase the amount of energy
• Also trying to improve their impact on the environment