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Hydro Power

Hydro Power . Green Power?. What is Green Power. Green Energy is a popular term for energy produced from clean, renewable energy resources . OR

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Hydro Power

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  1. Hydro Power Green Power?

  2. What is Green Power • Green Energy is a popular term for energy produced from clean, renewable energy resources. OR • Green energy is the term used to describe sources of energy that are considered to be environmentally friendly and non-polluting, such as geothermal, wind, solar, and hydro. Sometimes nuclear power is also considered a green energy source. Green energy sources are often considered "green" because they are perceived to lower carbon emissions and create less pollution. Hydro Solar Wind Geothermal

  3. What is hydro power • Hydro power is energy derived from flowing water. The flow of water is harnessed in dams, the flow of water is then diverted through turbines which in turn create energy.

  4. Lake Pedder • Former natural lake, located in the southwest of Tasmania, and is now the name used to refer to the much larger artificial impoundment and diversion lake formed when the original lake was flooded by damming in 1972 by hydro electric commission. • The new Lake Pedder has an area of about 242 km² and it is considered to be the largest freshwater lake in Australia.

  5. Opposition to Lake Pedder • Community response • Opposition to the flooding of Lake Pedder extended well beyond Tasmania and spread throughout Australia and internationally. First recognised green party formed because of this issue. • Concerns over the construction of the dam revolved around the loss of the distinctive pink quartzite beach of the original lake, and an increased understanding of the unique nature of the wilderness quality to the south west of Tasmania. • The flooding of the natural lake and its use as an energy source has meant that three different animal species have become extinct not to mention the loss of habitats for countless others. Including the Lake Pedder earthworm, Lake Pedder Flatworm, and the Pedder galaxias (freshwater fish).

  6. The Franklin River • The Franklin river is a Tasmanian river with a massive catchment located in the west central coast of the island. • In the early 1980’s the river became the focus of the largest conservation battle ever fought in Australia, due to the proposed damming of the river for hydro power.

  7. The Franklin Issue • The government wanted to dam the river to create more energy output to Tasmania, and to also create jobs for the largely unemployed population of that part of Tasmania. • Many groups formed in opposition to the plan, their goal was to protect the Franklin, one of Australia’s iconic wild rivers. • Despite the Franklins listing as a world heritage conservation area the proposed damming was still going to go ahead.

  8. Franklin Continued • Blockades and non violent protests of the river occurred resulting in the arrest of over 1200 people. • In March of 1983, the federal government lead by Bob Hawke, eventually stepped in and passed regulations which stopped the proposed building of the Franklin dam.

  9. Snowy Hydro Scheme • Purpose of the Scheme • Collect, regulate, and use the waters of the southward flowing Snowy River and other streams in the Snowy Mountains for generating large quantities of peak load electricity for New South Wales, Victoria and the Australian Capital Territory • To supplement the westward flowing Murray and Murrumbidgee Rivers to enable expansion by irrigation of primary production on the dry but fertile plains of the Murray and Murrumbidgee region.

  10. Snowy Scheme • The scheme began in 1949 and was finally finished in 1974. • Its final cost was estimated at around $820 million dollars. • The construction of the scheme was seen as a massive step in Australia’s history providing numerous jobs for Australians and immigrants alike, and also providing mass irrigation and power.

  11. Environmental Concerns of the Snowy • Large amounts of land was flooded destroying eco systems that housed many different plant and animal species. • The diverting of natural rivers such as the snowy means that its percentage of natural flow has decreased which effects the health of the river.

  12. Snowy River Clip Snowy River http://www.youtube.com/watch?v=1iAdTi5I15c

  13. Hydro Power

  14. Environmental Impacts of Hydro-power • The flooding of large areas of land means the natural environment is destroyed. • This results in the lost of habitat for many living creatures. In some cases this can mean a reduction in biodiversity. • The building of dams can also cause massive geological damage (salinity, earth movement, erosion). • Building large dams can alter the water table level. • Clear fell logging for access roads & infrastructure • Altering of water flows and courses in the catchment. This affects the environment downstream.

  15. A closer look Franklin River http://www.youtube.com/watch?v=rGpy8_v3tmI&feature=related Lake Pedder http://www.youtube.com/watch?v=xYEb08HVFxg Snowy River http://www.youtube.com/watch?v=1iAdTi5I15c

  16. So, is hydro-power green? • Discuss

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