Hydropower

Hydropower electricity is the product of transforming potential energy stored in water in an elevated reservoir into the kinetic energy of the running water, then mechanical energy in a rotating turbine, and finally electrical energy in an alternator or generator. Hydropower is a mature renewable power generation technology that offers two desirable characteristics in modern electricity systems: first, built-in storage that increases the system’s flexibility and second, fast response time to meet rapid or unexpected fluctuations in supply or demand.

The bulk of hydropower generation originates in large conventional, reservoir-based plants which may provide seasonal or inter-season reserves. A second hydropower technology is run-of-the-river plant where the water cannot be stored but part of it is deviated from the normal river flow to a canal which feeds a low-head turbine. Whereas a reservoir plant can run on demand, e.g. to cover peak electricity demand, run-of-the-river plants generate electricity almost continuously and thus they provide base-load electricity. World conventional hydropower potential is considered to be around 2 500 GW (7 500 TWh in energy terms), of which 800 GW is already developed with 2 800 TWh of annual production. When demand for electricity is low, a pumped-storage facility stores energy by pumping water from a lower reservoir to an upper reservoir. During periods of high electrical demand, the water is released back to the lower reservoir to generate electricity. World pumpedstorage potential is approximately 1 000 GW or about half the realistic potential.

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EU Sustainable Energy week 2012: 18-22 June Apr 17, 2012

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SETIS expert workshop on the assessment of the potential of pumped hydropower storage Mar 01, 2012

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New position paper, 'Flexible RES as a key to optimal electricity mix' Aug 19, 2011

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New European Energy Efficiency Fund launched Jul 05, 2011

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Clean Energy Solutions Center: one-stop-shop for low-carbon energy analysis and best practice May 10, 2011

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European Commission adopts Energy Efficiency Plan 2011 Mar 31, 2011

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EESC calls for a common EU external policy on energy Mar 31, 2011

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EESC Conference on Energy Security Mar 31, 2011

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Renewable Energy Targets: Commission calls on Member States to boost cooperation Mar 14, 2011

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The State of Renewable Energies in Europe - EurObserv’ER Mar 14, 2011

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European Council’s First Energy summit ‘a breakthrough’ Feb 21, 2011

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EU Member States collectively forecast to exceed 20% target for renewable energy sources Jan 26, 2011

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European Commission releases new report on energy trends to 2030 Nov 04, 2010

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Interview: Henrik Bindslev, Chairman of the European Energy Research Alliance (EERA) Nov 03, 2010

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Green Energy funding backed by European Parliament's Industry Committee Oct 08, 2010

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France, UK, Germany issue joint call for 30% CO2 cuts Jul 22, 2010

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EU looks to move towards a 30 per cent emissions cut Jul 01, 2010

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New publication: 'Europe’s Energy position – Markets & Supply' Jul 01, 2010

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EERA launches new joint energy research programmes Jul 01, 2010

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Announcement: New publication from DG Energy: 'The European Strategic Energy and Technology Plan (SET-Plan)' Jul 01, 2010

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European Parliament roundtable: At the intersection of financing and policy – investing in low-carbon energy technologies in the EU Jun 04, 2010

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ESHA event during European Sustainable Energy Week 2010 Apr 27, 2010

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Europe on track to meet ambitious renewables targets Apr 13, 2010

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