Download hydropower plants into pumped storage. ▫ Extension of capacity in head race tunnels and/or build new tunnels. ▫ Installation of reversible ...
Download hydropower plants into pumped storage. ▫ Extension of capacity in head race tunnels and/or build new tunnels. ▫ Installation of reversible turbines or both a ...
Download Pumped storage hydropower is a technology that stores low-cost off-peak, excess, or ... pumped storage projects in the United States, these plants utilize single ...
Download Pumped storage hydropower is a technology that stores low-cost off-peak, excess, or ... pumped storage projects in the United States, these plants utilize single ...
Download This Congressional Report, Pumped Storage Hydropower and Potential Hydropower ... Conduits, addresses the technical flexibility that existing pumped storage ...
Download This Congressional Report, Pumped Storage Hydropower and Potential Hydropower ... Conduits, addresses the technical flexibility that existing pumped storage ...
Download This White Paper was prepared by the. National Hydropower Association's. Pumped Storage Development. Council. The primary author is Michael. Manwaring ...
Download which is located approximately 60km southeast of. Manila. It aims to provide 300MW of pumped storage power generation by utilizing the head of.
Download This White Paper was prepared by the. National Hydropower Association's. Pumped Storage Development. Council. The primary author is Michael. Manwaring ...
Download which is located approximately 60km southeast of. Manila. It aims to provide 300MW of pumped storage power generation by utilizing the head of.
Download Pumped Storage Considerations. – Limited in generation – usually hours, as determined by upper reservoir size. – Larger in scale, scope, & complexity than ...
Download Pumped Storage Considerations. – Limited in generation – usually hours, as determined by upper reservoir size. – Larger in scale, scope, & complexity than ...
Download Dam levels of pumped storage power stations. Eskom has often told the public that one of the reasons for load shedding over weekends is to fill up the dams at ...
Download Pumped Hydro Energy Storage. Known technology over 40 sites exist in US today. Very high capacity. Predictable capital and operating costs. Easily integrated ...
Download Pumped Hydro Energy Storage. Known technology over 40 sites exist in US today. Very high capacity. Predictable capital and operating costs. Easily integrated ...
Download The Role of Pumped Storage. Hydro Resources in Electricity. Markets and System Operation. Preprint. E. Ela. National Renewable Energy Laboratory. B. Kirby.
Download PLTA Pumped Storage adalah salah satu pembangkit listrik yang menggunakan energi terbarukan berupa air, dan membutuhkan suatu pompa untuk memompa air dari waduk bawah ke waduk atas hingga dijatuhkan ke turbin lalu dikopel ke generator
Download pump-turbine, which operated both as a turbine for energy generation and, in the reverse direction, as a pump. The first pumped storage station in. Germany was ...
Download pump-turbine, which operated both as a turbine for energy generation and, in the reverse direction, as a pump. The first pumped storage station in. Germany was ...
Download Being the only commercially proven large scale energy storage technology, pumped ... Pumped storage hydro power – revival of a conventional technology 1 .
Download The Role of Pumped Storage. Hydro Resources in Electricity. Markets and System Operation. Preprint. E. Ela. National Renewable Energy Laboratory. B. Kirby.
Download activities in karst areas and the effects that those impacts have had on the quality of life. Many human activities can negatively impact karst areas, includ- ing deforestation, agricultural practices, urbanization, tourism, military act
Download A White Paper Developed by NHA's Pumped Storage Development Council ... highly affordable prices for decades: hydropower pumped storage. Indeed, for the ...
Download A White Paper Developed by NHA's Pumped Storage Development Council ... highly affordable prices for decades: hydropower pumped storage. Indeed, for the ...
Deposits in Ghana. According to
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Environmental impacts of pumped storage hydropower plants Norwegian perspectives
Tor Haakon Bakken SINTEF Energy Research & CEDREN
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Structure of talk 1. Typical system design/changes 2. Typical physical and biological impacts 3. Tonstad hydro power system 4. What can we do to reduce the impacts? 5. What we are working on in Norway (CEDREN)
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Situation: Extension of existing hydropower plants into pumped storage
Extension of capacity in head race tunnels and/or build new tunnels
Installation of reversible turbines or both a turbine and pump in two different water ways
Extension of grid capacity, if necessary
Utilisation of existing upstream and downstream reservoirs
Introduction of new operational regime • •
Changes in seasonal/yearly fluctuations in reservoirs Changes in daily fluctuations in reservoirs
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Possible annual fluctuations in reservoir filling Scenario
0.9
0.9
0.8
0.8
0.7
0.7
0.6
0.6
Reservoir level (p.u.)
Reservoir level (p.u.)
Base case
0.5 0.4 0.3
0.5 0.4 0.3
0.2
0.2
0.1
0.1
0
0
1000
2000
3000
4000 5000 Hours
6000
7000
8000
0
0
1000
2000
3000
4000 5000 Hours
6000
7000
8000
4
5
What about daily fluctuations? 2500 2000 1500 1000 500 0 -500 -1000 -1500 -2000 -2500
Base BaseCase case Scenario Base Case1+3500MW Scenario Base Case2+3500MW +10TWh 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
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Physical impacts in the reservoirs
Lake morphology: • Limited volume • Mild slopes along shore
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Physical impacts in the reservoirs
• A large portion of volume tapped from reservoir • Severe reduction in littoral zone
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Physical impacts in the reservoirs
Lake morphology: • Large volume • Steep walls • Dominated by rock material?
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Physical impacts in the reservoirs
• A limited portion of volume tapped from reservoir • Reduction in littoral zone • Limited erodible material/less stranding?
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Physical impacts in reservoirs More rapid and frequent water level changes (short term basis) Changes in reservoir filling over the year (maybe to the better) Reduction in permanent wetted littoral zone on short term basis Changes in circulation patterns (water velocity/directions) Changes in water temperature and ice formation
Erosion due to wave exposure and pore pressure out of equilibrium Landscape changes (tips, flooding of roads/tracks, aesthetic impacts)
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Biological impacts Possible higher risk of spreading of species (also exotic species) Large part of the biological production is in the littoral zone (close to shore, max 10 m depth). Implications on littoral zone should be detailed analyzed. Possible changes in feeding pattern due to possible impacts on littoral zone • Trout is littoral feeder - invertebrates • Char is pelagic feeder – zoo plankton Invertebrate feeding much more efficient than plankton feeding (size, easier to catch, etc)
Possibly lower visibility due to erosion or opposite Possibly more light (due to less ice), stimulating primary production Larger volumes of water passing through turbines - fatality of larger species
Example: Tonstad pumping plant (proposed project)
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Highlights Tonstad: • Largest in Norway in production (6,3 TWh) • Installed capacity: 1760 MW • Proposed: additionally 960 MW (with pumping)
Example: Tonstad pumping plant (proposed project)
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Sirdalsvant (downstream)
Homstølvatn (upstream)
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Tonstad: Degree of impacts identified in EIA Sirdalsvatn
Homstølsvatn
Ousdalsvatn
Insignificant/ small negative
Small negative
Insignificant
Local climate
Insignificant
Insignificant
Insignificant
Water quality
Insignificant
Insignificant
Insignificant
Fish & Invertebrates
Insignificant
Small/medium negative
Medium negative
Biodiversity
Small negative
Small negative
Small negative
Landscape
Small negative
Small negative
Medium negative
Agriculture & forestry
Small/medium negative
Insignificant
Small/medium negative
SUMMED (*)
Insignificant/ small negative
Insignificant/ small negative
Insignificant
Ice, water temp
(*) Topics Cultural heritage, society (economical) and local community left out
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Follow-up Tonstad case More detailed studies on impacts Simulation of more extreme scenarios Test and develop tools
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How to reduce problems?
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Centre for environmental design of renewable energy – CEDREN
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Renewable energy respecting nature ► 7 large research projects ► 7 Norwegian research partners ► 10 Industry partners and 2 authority partners ► Budget: 263 MNOK (67 MNOK in 2010) (tot. 33 mill Euro) ► 15 PhD and 4 Post-doc positions
Impacts of pumped HPP depending on: Selection of site Shape and size of reservoir Operational regime Mitigating measures Can be limited, but must be evaluated case by case
CEDREN is a ‘once in a life-time’ initiative Integrates technical, environmental and social/political aspects Is open for new participants (especially international) Foto: NINA