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Transcript of Hydro Power
Benefits and Significance to Canada' s Economy
Hydroelectric dams block the path of the water which makes it collect, forming a fake lake known as a “reservoir”. This makes the kinetic energy to transform into potential energy making the lake a battery, storing this energy which can be released little at a time.
Hydroelectric power stations generate their power from the kinetic energy of flowing or falling water into electrical energy.
The potential energy can revert back to its original state of kinetic energy by opening underwater gates. When it opens the really heavy weight of the gates, the stored water is released into a channel called a penstock into a turbine. The water hits the blades of the turbine, turning it, which results in the kinetic energy turning into mechanical energy while the water goes down the stream.
There is a small scale generation with a “run-of-river” installation (using the flow of the water to turn one or more turbines to generate power). There is also large scale such as hydroelectric dams.
Hydro power is one of the cleanest energy sources available because it's fueled by water and doesn't pollute the air in the way fossil fuels do. Plus, hydro power is the cheapest electricity to produce.
Hydro power stations can generate electricity in a very short amount of time because water flows continuously. That makes hydro power very reliable and could be used as a backup resource.
Sometimes when hydro power requires water, a reservoir is created and many recreational opportunities are created. For example, in an area that was far away from a body of water, there's now a reservoir where you can go fishing or swimming. As an added bonus, the reservoir can moderate the local weather.
Hydro electricity projects will even provide 1 million jobs over the next 20 years.
Canada is currently investing in hydro power projects that will give us $125 billion within the next 20 years.
Hydro power provides 60% of Canada's electricity.
If there's lots of water in the reservoir, than the electrical generation output can be controlled by how much water is going through the pen-stock. There is different types of hydro power such as: low head hydro power, Run-of-River hydro power, storage hydro power, pumped-storage hydro power and offshore hydro power.
The powerhouse in the dam is where the turbine and generator is located. It also has a transformer there. The transformer converts the electrical energy into high voltage that the national grid can use. It transmits the voltage into electrical power lines to homes and businesses that require it. Here, the transformers turn the voltage back down to a useable level. There are different types of hydro power plants types such as: Diversion,Pumped and Impoundment.Sizes: Large,small and micro.
Issues and Solutions
-When dealing with endangered species, we can relocate them so they may thrive somewhere else such as a national park or a reservation.
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The natural resource that we have chosen is renewable energy.The definition of renewable energy is energy from a source that is not depleted when used. In today's world, we have many renewable resources. Some of the well-known renewable resources are wind, solar and geothermal energies. We are still turning to and depending on fossil fuels to power our electrical sources. Fossil Fuels are what we are currently using for power and are a horrible source . Even though Renewable energy is expensive to start up, it has many more benefits once operations get going. In Canada, we have already been approaching to the use of renewable energy. So today, we will be presenting the use of hydro power and its impact on canadian life.
Here is a map of hydro dams located in Canada.
Of that map, here is some information that can be extracted from that. As you can notice, two provinces that have the most number of large dams are in Quebec (333) and Ontario(149). While the two lowest number of large dams are in the territory of Yukon and the province Prince Edward Island.
Where is it located?
Hydro is a renewable resource since we can use it many times continuously and it will continue to replenish itself fast. It is also considered a flow resource since it will continue to go on, even if humans cease to exist in the world. Non-renewable resources are resources which cannot be renewed or resources that take millions of years to replenish.
Choosing the right location
Hydro dams near Toronto
Well-Known Water Dam
Based on looking at the previous map, you can see hydro dams located in Canada. You may have noticed that Yukon doesn't have that many because even though it may have many streams and rivers, they become unreliable due to the cold climate. These rivers continue to freeze and stay frozen for the winter season, With frozen water, you can't create hydro electricity.
Creating large water dams can create big damage to animal and human habitation, especially knowing that there are thousands of creatures in the water. Some hydro dams aren't stable enough and sometimes collapse. These dangers can create floods which can wipe out homes and vegetation. You would need to find a location where there is less habitation and a jungle wouldn't be suitable as a good idea.
We should all know this hydro dam, it is something well-known to all of us
The Niagara River is one of the world's greatest sources of hydroelectric power
Milne Dam and Reservoir, Milne Park Conservation Area - Markham (Rouge River (Toronto)
In conclusion to our presentation, renewable energy is going be something very fundamental in the future and will for sure be more reliable than fossil fuel energy. As you can see, hydro energy may have some small effects on the environment, but it has many benefits for us canadians. Fossil fuels will one day be depleted and it will be up to us to start moving on to renewable energy.
By: Hassan T, Monish S, Sean N, Tahmid H
Hydro power cannot be formed on land, but only on water
Rain or melted snow, usually originating in hills and mountains, create streams and rivers that eventually run to the ocean. It are these oceans and river that become essential and fundamental into creating hydro power
Hydro power is not something you get from the sky and is not something that can be created right away, it is created through a process
The energy of that moving water can be substantial
The science behind hydro power is water and its force. In order for hydro power to work, you need a continuous flow of water other known as a waterfall, which will push these big metal turbines that spin and send electricity to the power generators
So wherever there is continuous flow of water like a river or ocean, that is where you can put a hydro power station. It's all about the flow of water and its ability to generate enough force to push turbines.
Hydro dams cannot be put in anywhere, it has to be near water. For example, a waterfall or a strong force of water.
There are many reasons that can affect the location of a hydro dam, from the current climate to the habitation of animals and humans.
In my opinion, to have a successful water dam, here are some key features need:
near water, especially an ocean with a tide
don't make a dam near animal habitation
Your most likely not going to have a good dam in a cold climate
There are not any actual large hydro dams near Toronto, but there are many small dams, reservoirs and generating stations which take the power from hydro dams which are located all around the province and distribute that electricity to us, the consumers.
G Ross Lord Park Flood Control dam and reservoir, G Lord Ross Park (Don River (Toronto)
A well-known dam in Ontario is one located in Niagara Falls called Sir Adam Beck Hydroelectric Generating Station
Since 1958, Sir Adam Beck Generating Station No.2 has been Ontario Power Generation's largest and one of its most reliable hydroelectric facilities.
It provides immense energy of 2 million kilowatts of electricity
-The water inside the dam is warmer than the one in a said river. Therefore when released to generate electricity, it can affect the wildlife in a bad way.
-Can cause floods if damaged
-Although the Generator does not (or barely) emit greenhouse gases, the construction and destruction of a generator definitely does. Although it may not be as much as a coal-based generator of electricity, it still is a thing to consider.
- They can cause LOTS of dry land due to the hording of large amounts of water the environment used to use.
- Land Use. Hydroelectric Generators and Dams take up a lot of space. In the process of building a dam, it can destroy forests and natural communities which makes it a very controversial renewable resource.
- Reuse areas where old dams used to be located or old dams that have been tore down but still located there.
-Instead of re-locating the victims and residents, one could provide alternate jobs with maybe higher revenue than their earlier occupation so as to make up for any other financial loss.
-Instead of creating a dam near residential areas or near towns and villages, one could build them further up or down the river so as to prevent such sort of social ill feeling.
-Passages should be created for fish and other aquatic life to pass through the dam to compensate for their migration periods.
-New sites in consideration to build a dam must take into account the effects the dam will do on the wildlife, the community around it, and the cost of it.