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Renewable Energy II Hydroelectric power systems

Renewable Energy II Hydroelectric power systems high initial investment, low operating cost, long life expectancy no emissions; high capacity, reliability reservoirs provide water storage for navigation, irrigation, water supply flood control, controlled discharge for recreation, fishing

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Renewable Energy II Hydroelectric power systems

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  1. Renewable Energy II Hydroelectric power systems high initial investment, low operating cost, long life expectancy no emissions; high capacity, reliability reservoirs provide water storage for navigation, irrigation, water supply flood control, controlled discharge for recreation, fishing reservoirs flood valuable land; displacement of towns; cultural history reservoirs may increase evaporation and salinity of water water quality may decline due to impoundment natural fluctuations in stream flow are reduced – flooding reduced, but... temperature regimes are disrupted – cold water released sediment starvation of downstream system Colorado River – Lake Powell, Lake Mead Yangtze River – Three Gorges Dam Nile River – Aswan High Dam

  2. Aswan High Dam Completed in 1970 Significant flood control and irrigation advantages Floodplains downstream starved of new sediment input. Delta subsidence and erosion Salinity Destruction and damage to cultural sites http://www.quarryscapes.no/images/Egypt_sites/aswan_loc.jpg

  3. http://72.232.229.42/thumb/e/e0/Aswan_High_Dam.jpg/200px-Aswan_High_Dam.jpghttp://72.232.229.42/thumb/e/e0/Aswan_High_Dam.jpg/200px-Aswan_High_Dam.jpg

  4. http://travel.nationalgeographic.com/places/images/lw/photos-ancient-egypt_abu-simbel-temple.jpghttp://travel.nationalgeographic.com/places/images/lw/photos-ancient-egypt_abu-simbel-temple.jpg

  5. http://www.civilization.ca/cmc/exhibitions/civil/egypt/images/geog04b.jpghttp://www.civilization.ca/cmc/exhibitions/civil/egypt/images/geog04b.jpg

  6. http://www.cnsm.csulb.edu/departments/geology/people/bperry/geology303/_derived/geol303text.html_txt_NileDeltaEgypt.A2000060.0855.NASA.gifhttp://www.cnsm.csulb.edu/departments/geology/people/bperry/geology303/_derived/geol303text.html_txt_NileDeltaEgypt.A2000060.0855.NASA.gif

  7. Three Gorges Dam Yangtze River Hydropower to offset new coal-fired plants , flood control Ecosystem impacts, water quality concerns social displacement Earthquakes? http://blogs.nationalgeographic.com/blogs/news/chiefeditor/Three-Gorges-Dam-Map.jpg

  8. http://blogs.nationalgeographic.com/blogs/news/chiefeditor/Three%20Gorges%20Dam%204.jpghttp://blogs.nationalgeographic.com/blogs/news/chiefeditor/Three%20Gorges%20Dam%204.jpg

  9. http://www.blogthebest.com/wp-content/uploads/2009/04/three-gorge-dam-01.jpghttp://www.blogthebest.com/wp-content/uploads/2009/04/three-gorge-dam-01.jpg

  10. Tidal and Wave Power Tidal systems generally require a control dam (‘barrage’) to direct flow through turbines. Some tidal systems have sufficient velocity to drive turbines without impoundment Wave systems - experimental; disappointing to date Geothermal Steam and hot water Hot dry rock – injection and recovery of steam or hot water has been problematic Ground, groundwater and lake geothermal – heat pump system Depend on low-temperature (66-39 F heat exchange provide air conditioning Closed loop systems preferred

  11. http://www.mywindpowersystem.com/wp-content/uploads/2009/08/renewable-energy-tidal-2.gifhttp://www.mywindpowersystem.com/wp-content/uploads/2009/08/renewable-energy-tidal-2.gif

  12. Tidal barrage systems – Loire estuary, France

  13. http://2.bp.blogspot.com/_cwrSE63jF7Y/R_uFKPAwsbI/AAAAAAAAARM/Tt0rHa96yhQ/s400/la_rance_tidal_power_plant.jpghttp://2.bp.blogspot.com/_cwrSE63jF7Y/R_uFKPAwsbI/AAAAAAAAARM/Tt0rHa96yhQ/s400/la_rance_tidal_power_plant.jpg

  14. http://home.clara.net/darvill/altenerg/images/wave.jpg http://www.jamstec.go.jp/jamstec/MTD/Whale/proto1.jpg Wave power – experimental systems to date http://cache.gizmodo.com/assets/images/gizmodo/2008/07/seagen.jpg

  15. “Hot’ geothermal systems currently in operation depend on natural recharge of cool surface water which is heated by hot rock or magma in areas of volcanic activity.

  16. Hot dry rock systems require injection of cool surface water and production of steam or hot water from fractured rock at depth. These systems have not been successfully developed to date. Loss of water to dry rock, and possible triggering of earthquakes are ongoing problems. http://www.quantecgeoscience.com/Q_images/HotDryRockDiagram.jpg

  17. Ground (c) and groundwater (b) geothermal. http://www.harreither.com/typo3temp/pics/d60ec24fd8.jpg

  18. Lake or pond geothermal. Water at bottom of lake does not cool below 4C (39F). Heat pump required for residential heating. http://www.acegeo.com/_wp_generated/pp26641064.jpg

  19. Craine Lake - a 22 acre private lake about 5 miles south of Hamilton. Geothermal potential for 36 residences around the lake??

  20. 100 meters North UTM Northing NAD 83 Craine Lake Bathymetric Map Depth Contours in Meters Catie Carr – 8/27/08 UTM Easting NAD 83

  21. 100 meters Temperature August, 2008 North <10oC 10-22oC UTM Northing NAD 83 22-25oC Craine Lake Summer Temperatures UTM Easting NAD 83

  22. Summer thermal structure summer surface layer 22-25oC Lake surface 5 meters thermocline layer 10 meters summer bottom water <10oC

  23. Temperature February, 2009 100 meters North 3.5-4.0oC UTM Northing NAD 83 <3.5oC UTM Easting NAD 83

  24. Winter thermal structure cold surface layer less than 3.5oC Lake surface 5 meters 10 meters slightly warmer bottom water <3.5 – 4.0 C

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