Ruqayyah Snyder
Hydroelectricity, also known as hydropower or hydro energy, is a renewable energy source that converts the energy of moving water into electricity. In Australia, hydroelectric power is found in various states, including New South Wales, Tasmania, Queensland, South Australia, Victoria, and Western Australia. The Snowy Mountains Hydro-electric Scheme, located in New South Wales, is one of the most well-known hydroelectric power stations in Australia and has been in operation since the 1970s. Other notable hydroelectric power stations include the Wivenhoe Power Station in Queensland and the Gordon Power Station in Tasmania. With over 120 operating hydroelectric power stations, Australia has been utilising hydropower as a significant source of renewable energy for decades.
| Characteristics | Values |
|---|---|
| Number of hydroelectric power stations | More than 120 |
| Location of power stations | New South Wales, Tasmania, Queensland, South Australia, Victoria, Western Australia |
| Installed capacity | 7800 megawatts (MW) |
| Percentage of Australia's total electricity supply | 5-7% |
| Largest power station | Snowy Mountains Hydro-electric Scheme |
| Capacity of Snowy Mountains Hydro-electric Scheme | 3800 MW |
| Number of dams in Snowy Mountains Hydro-electric Scheme | 16 |
| Number of power stations in Snowy Mountains Hydro-electric Scheme | 7 |
| Number of underground power stations in Snowy Mountains Hydro-electric Scheme | 2 |
| Length of trans-mountain tunnels in Snowy Mountains Hydro-electric Scheme | 145 km |
| Length of aqueducts in Snowy Mountains Hydro-electric Scheme | 80 km |
| Percentage of Tasmania's electricity generated through hydroelectricity | 29% |
| Capacity of Tasmanian integrated hydropower scheme | 2600 MW |
| Number of water catchments in Tasmanian integrated hydropower scheme | 6 |
| Number of dams in Tasmanian integrated hydropower scheme | 50 |
| Number of power stations in Tasmanian integrated hydropower scheme | 29 |
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What You'll Learn
The Snowy Mountains Hydro-Electric Scheme
The Snowy Scheme is a network of power stations, dams, aqueducts, and tunnels that harness the region's vast water resources to generate electricity and irrigate western agricultural regions. The scheme collects and stores water that would naturally flow eastward to the coast and redirects it through trans-mountain tunnels and power stations. The water is then released into the Murray and Murrumbidgee Rivers for irrigation.
The Snowy Mountains Scheme comprises sixteen major dams, seven power stations (two underground), two pumping stations, 145 kilometres of interconnected trans-mountain tunnels, and 80 kilometres of aqueducts. It has a capacity of 3800 MW and generates around half of Australia's total hydroelectricity, accounting for 67% of renewable energy in the mainland National Electricity Market. The scheme's primary function is water management, and it plays a crucial role in providing water security to the Murray-Darling Basin, contributing to an irrigated agriculture industry worth about A$3 billion per year.
The Snowy 2.0 project is an expansion of the original Snowy Scheme, aiming to connect two existing dams and provide an additional 2000 MW of capacity and 350,000 MWh of storage. This upgrade will enable the scheme to power approximately 3 million homes over a week, providing stability to the power grid by supplementing renewable sources like wind and solar. Snowy 2.0 will serve as a gigantic battery, recycling the water it uses in a closed-loop system.
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New South Wales
Hydroelectricity is a form of renewable energy that converts the energy of moving water into electricity. It is one of the most advanced and mature renewable energy technologies, with a low environmental footprint and high ramp rate, and has been used in various forms for thousands of years.
In Australia, hydroelectricity has been providing around 5-7% of the country's total electricity supply for decades, with over 120 operating hydroelectric power stations, both large and small, and a total installed capacity of about 7800 megawatts (MW).
In 2020, construction began on the Snowy 2.0 project, which will link two existing dams in the Snowy Mountains and provide an additional 2000 MW of capacity and 350,000 MWh of storage. This additional capacity is forecast to power approximately 3 million homes over a week.
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Tasmania
Hydro Tasmania, formerly the HEC, is now the main electricity generator in Tasmania. It operates 30 hydro-electric and one gas power station, and is a joint owner of three wind farms. Hydro Tasmania's integrated hydropower scheme generates over 2,600MW of electricity from six major water catchments, 50 major dams and lakes, and 29 power stations. The scheme provides base and peak load power to the National Electricity Market, first to Tasmania, and then to the Australian network through Basslink, an undersea interconnector under Bass Strait.
In the 1990s, Hydro Tasmania began investing in wind farms, with the first being the Huxley Hill Wind Farm on King Island, completed in 1998. This was followed by two wind farms at Woolnorth, and then the Musselroe Wind Farm, completed in 2013.
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Queensland
The Hydro Power Plant in Outback Queensland is the first of its kind in Australia and the third in the world. Thargomindah, a town in Outback Queensland, was the first to have reticulated Artesian Bore water. Queensland Hydro has also been involved in other initiatives, such as the Gympie Science and Engineering Challenge and the Lake Borumba Fish Stocking Association's annual fingerling release.
Hydroelectricity, also known as hydropower or hydro energy, is a renewable energy source that harnesses the kinetic energy of moving water to generate electricity. It is one of the most advanced and widely used renewable energy technologies, providing some level of electricity generation in over 160 countries. The process involves channelling water from reservoirs, rivers, waterfalls, or dams through turbines, which then convert the kinetic energy into electrical energy. This electricity is then fed into the power grid.
Pumped hydro and hydroelectricity are similar in that they both utilise the force of water to spin turbines. However, pumped hydro, or Pumped Hydro Energy Storage (PHES), uses water reservoirs to store energy, allowing for the release of electricity during high-demand periods. PHES systems are an important component of Australia's transition to renewable energy, providing large amounts of electricity over extended periods and helping to stabilise the electricity grid.
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South Australia
Hydroelectric power in South Australia is primarily generated through large-scale projects, with a few small-scale installations also contributing to the overall capacity. The state's largest hydro plant is the Snowy Hydro Scheme, a joint venture between the states of South Australia, New South Wales, and the Australian Capital Territory. This scheme involves a series of dams and power stations located in the Snowy Mountains region, harnessing the power of falling water to generate electricity. The Snowy Hydro Scheme has a total capacity of 3800 MW, making it one of the largest renewable energy sources in the country.
The state also has several other large-scale hydro projects. One notable example is the Tumut 3 Power Station, located in the Tumut Valley, New South Wales. This power station is part of the Snowy 2.0 project, which involves the construction of a new underground power station and the expansion of existing reservoirs. Tumut 3 has a capacity of 250 MW and is expected to provide crucial peaking power to support the integration of renewable energy sources.
In addition to these large-scale projects, South Australia also has a number of small-scale hydroelectric power installations. These are typically found in remote and regional areas, providing power to off-grid communities or supplementing on-grid electricity supplies. One example is the King River Power Station, located in the state's West Coast region. This run-of-river power station has a capacity of 240 kW and provides electricity to the small town of Derwent Bridge.
The state government has also explored the potential for pumped hydro energy storage (PHES) projects, which involve pumping water uphill to a reservoir during periods of low demand and releasing it to generate electricity during peak demand. There are currently several proposed PHES projects in South Australia, including the Cultana PHES project on the Eyre Peninsula and the Goat Hill PHES project in the state's mid-north region. These projects have the potential to provide significant energy storage capacity, enhancing the state's ability to balance renewable energy supply with demand.
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Frequently asked questions
Hydroelectric power, also known as hydropower or hydro energy, is a type of renewable energy that converts the energy of moving water into electricity.
Hydroelectric power works through pressure, using the force of water to spin a turbine that generates electricity. Water is released from a hydroelectric dam, which upon impact spins a turbine at the base of the infrastructure that is connected to a generator. The generator then converts the mechanical energy into electrical energy that can be shifted into the grid system.
Australia has over 100 operating hydroelectric power stations with a total installed capacity of about 7,800 megawatts (MW). These are located in areas of high rainfall and elevation, mostly in New South Wales (55%) and Tasmania (29%).
There are three types of hydropower plants in Australia, each operating differently. The most common are impoundment plants, which store water and release it to generate electricity. Diversion plants force water to flow through canals to produce electricity. Pumped storage plants allow water to be stored and used as an electricity supply when demand is higher.
Some of the most well-known hydroelectric power plants in Australia include the Snowy Mountains Hydro-Electric Scheme, the Wivenhoe Power Station, and the Gordon Power Station.
