1. What does the term “renewable” mean?
The term "renewable" in relation to energy refers to a natural power source which can be replenished on a human time scale. For example, coal and oil may both be replenished but cannot be considered "renewable" sources as the process is not easily replicated artificially and therefore takes millions of years to replace what has been extracted from the earth. The use of sunlight, tides, waves, wind, geothermal heat and biomass are examples of natural power that are considered renewable sources.
2. Which two renewable energy forms did you choose?
I have chosen to discuss two prominent and well known forms of renewable energy in Australia are hydropower and solar power.
Hydropower
Hydropower or hydroelectricity is one of the more mature forms of renewable energy technology and can be found in some form in over 160 counties ("Hydro Energy", 2016). Power is generated when the kinetic energy of flowing water from sources such dams, rivers or waterfalls is directed through water turbines which in turn create electrical energy. There are over 120 hydropower stations though out Australia generating 8% of total energy generation ("Hydropower", 2016).
Solar power
In Australia is not uncommon for homeowners to install solar panels on their roof tops which have the potential to supply surplus energy back into the grid and subsidise the homeowners electrical costs. In some cases the entire energy bill maybe completely offset by the amount
Renewable energy is energy from a source that is not depleted when it is used.
In this paper I will be discussing the renewable technology Hydropower and the pros and cons of it. I will be using three separate articles from GREENR focusing on hydropower as a whole and some of the possible downsides of this technology in addition to the very noticeable positive effects from hydropower. The three articles mentioned are "Building BRIC: Carrieann Stocks takes a look at recent developments in hydropower across Brazil, Russia, India and China." (International Water Power & Dam Construction) (Jan. 2015), "Electricity Production from Hydroelectric Sources, Top Ten Countries, 2003/4." (Global Reference on the Environment, Energy, and Natural Resources Online Collection), and "Green streak." (Earth Island Journal) (Jun. 22, 2015). I will be discussing the possible reasoning behind some people not wanting to focus on this possibly very beneficial alternative and try to explain why “If Hydropower is available why don’t we use it?” Keywords: dams, turbine, hydroelectric, renewable resource, nonrenewable resource
A more advanced version of hydropower is hydroelectric power. It is the electricity created by water. For example, when the waterwheel receives water pressure, it begins to turn. Connected to a motor, the wheel begins to generate energy. Eventually, the power is dished out and distributed
Hydroelectric is a form of energy it is a renewable resource. Hydroelectricity is the most important and widely used renewable source of energy. Hydroelectric relies on water, which is clean and renewable energy source. Renewable energy comes from natural resources. Non-Renewable energy source includes coal, oil and natural gas. Water is renewable because water continually recycles itself. To harness energy from flowing water, the water must be controlled; a large reservoir is created, usually by damming a river to create an artificial lake or reservoir. Water is channeled through tunnels in the dam. The energy of water flowing through the dam causes the turbines to turn and make the
Humans have made significant discoveries in utilizing the countless benefits of water, one of the most important being the ability to use water to perform work. This is the concept of hydropower. Hydropower is using the energy of moving water to create power. This clean and renewable method of power generation is used all throughout the globe, and accounts for a small percentage of global electricity demand. Hydropower hasn’t always existed as the large scale dams that are abundant today. Hydropower technologies have been slowly evolving for many centuries.
Support: Solar power has very little pollution, uses no greenhouse gases and is a renewable source.
Hydroelectric power plant is one of the major power plants all over the world in order to create electricity. It is also one of the best renewable energy sources on the planet earth. In ranking, Canada is the third largest country to produce hydroelectricity power. The efficiency of this power source is 90% and this is very impressive as the percentage of efficiency is very high. Hydro power plants generate 24% of the world’s electricity. More than 1 billion people are associated with hydro power plants as they use the power supply from hydro power plants.
Hydropower is a alternative energy sources that makes electricity using water, this process goes from mechanical to electrical . This form of energy is a transfer from mechanical to electrical energy. Hydroelectric power is very useful source of alternative energy, if this market keeps growing, it could be the solution to a clean and mostly environmentally friendly power source. The most common source for generating hydroelectric power is dams. There are an estimated 57,000 large dams around the world producing tons of electricity for the people in the area. Many countries use hydroelectric power, China leads the way with the country producing over 856.4 billion kilowatts the second is Brazil, and then Canada in third place.
There has been much controversy over changes in the environment due to the placement of hydroelectric dams, and also due to the pollution caused by other power plants which use non-renewable sources of energy. The arguments which come from certain groups against both sides seem rather strange. The purpose of this paper is to explore the environmental and other effects from both energy sources, and the arguments which are presented by different groups who lobby for and against the two sources of power. It appears in many opinions; a group will only access one issue, actually separating two topics which go hand in hand. The focus for examples in this paper with mainly rely on
In addition, solar energy operational costs are manageable. It is free from monthly charges compared to conventional sources of energy. Solar energy does not require raw materials such as oil and coal, and once the panels are built, there will be no monthly charges. In addition, the prices of fossil fuels are increasing day by day, and this means conventional energy will be very expensive. Solar energy will remain the most capable world’s future power supply because, it is cost effective once the plants are built, and there will be no transport costs like for conventional energy sources. Therefore, solar energy is cost-effective, and will help in future energy supply, as the maintenance cost is affordable, as long as they are installed properly, and are working efficiently ( Hans, 2012). Furthermore, with the improvement and advancement of technology, it will increase its efficiency, and cost of production thus, making it more cost effective and the world’s best
“Worldwide, hydropower facilities possess a significant amount of installed electric generating capacity. IEA statistics indicate that at the end of 2001 there was in excess of 450,000 MW of installed capacity within IEA member countries, with about half in Europe and half in North America. In addition to conventional hydropower, there is more than 80,000 MW of installed pumped-hydro capacity in IEA countries. In contrast, utility-scale wind power is relatively new in the electric market, but increasing rapidly” (Integration of Wind and Hydropower Systems)
When the topic of hydroelectric energy comes up many people wouldn’t know exactly what it is, or what it does. So what exactly is hydroelectric energy or more exact what does it do? Hydroelectric energy is one of the oldest power sources on the planet, generating power when flowing water spins a wheel or turbine. It was used by farmers as far back as ancient Greece for mechanical tasks like grinding grain. Hydropower is also a renewable energy source and produces no air pollution or toxic by-products. When most people guess what of hydroelectric, they think the Niagara Falls which was the site of the country’s first hydroelectric generating now a little history which supposedly according to the website the facility was built in 1881 when a man name Charles Brush connected a generator to turbines powered by the falls and used the electricity to power nighttime lighting for visiting tourists. America’s first commercial hydropower facility was built in 1882 in Appleton, Wisconsin powering lighting for a paper mill and multiple homes. But every state uses hydropower for electricity, and some states use a lot of it and according to the website it explained that over 70 percent of Washington State’s electricity comes from hydropower, and 11 states get more than 10 percent of their electricity from hydropower. Hydroelectricity provides about seven percent of the electricity generated in the United States and about half of the electricity from all renewable sources.
Hydroelectric power is one of the oldest alternative energy sources that is still as important today as it was in the past. Since biblical times, people around the world have been using flowing rivers to power a simple machine known as a mill. When the water mill turns from the power of the rushing water, it turns kinetic energy into mechanical movement that can complete a job. In the past, that job has been grinding grains, chopping lumbar, and pounding paper (Dursun & Gokcol, 2011). Today, the harnessed power from flowing water is used to provide humans with one of our most important resources: energy (U.S. Department of the Interior, 2015). This paper will explore many aspects of hydroelectric power. Topics that will be discussed include how hydroelectric power works, advantages and disadvantages, how it is currently being used, and plans for using hydroelectric power in the future.
Hydroelectricity is another form of electricity that is produced by using water as the resource for generation, this simply means that when water is released (flow), it is aided by gravitational force therefore it generates Kinetic Energy (KE) which is converted into mechanical energy by assistance of turbines and generators which convert the mechanical energy into electrical energy which is then transferred to power lines in that form.
Presentation by Dr Kyle Catchpole and Professor Ken Baldwin this week is focused on energy. Dr Kyle Catchpole start with renewable energy and she mentions about the potency of renewable energy in Australia such as wind turbine, and solar energy. In recent year renewable energy are cheaper due to the improvement of technology.