====== Hydro value ranges ======
The OFEN has evaluated the development potential of the hydro power <sup>[[#References|[1]]]</sup>. The results of the study are presented on the next table:

^  Development potential of the hydro power [GWh/year]<sup>[[#References|[1]]]</sup>  ^^^
^  ^Actual conditions ^Optimized conditions ^
|New big plants |770 |1'430 |
|Small hydro |1'290 |1'600 |
|Transformation, extension |870 |1'530 |
|LEaux effects |-1'400 |-1'400 |
^Total net potential ^1'530 ^3'160 ^

PROGNOS(2012) <sup>[[#References|[2]]]</sup> has based its forecast for 2050 on the development potential under optimized conditions of OFEN(2012) <sup>[[#References|[1]]]</sup> and it has done the next distribution between [[hydro_river_more_2|hydro river]] and [[hydro_dam_more_2|hydro dam]].

^  Development potential of the hydro power [GWh/year]<sup>[[#References|[2]]]</sup>  ^^
|Small hydro |1600 |
|[[hydro_river_more_2|Hydro river]] |2000 |
|[[hydro_dam_more_2|Hydro dam]]|900 |
|LEaux effects |-1400 |
^Total net potential ^3100 ^

The next assumptions have been considered to calculate the net potential development for [[hydro_river_more_2|hydro river]] and [[hydro_dam_more_2|hydro dam]] by 2050:
  * Small hydro development is attributed to [[hydro_river_more_2|run-of-river]].
  * The LEaux production penalty is shared between [[hydro_river_more_2|hydro river]] and [[hydro_dam_more_2|hydro dam]] depending on their net electricity production <sup>[[#References|[3]]]</sup> in 2011:49% for [[hydro_river_more_2|hydro river]] and 51% for [[hydro_dam_more_2|hydro dam]].

The net development potentials for each technology are added to the 2011 net electricity production <sup>[[#References|[3]]]</sup> to obtain the electricity production potential of Swiss hydro power plants in 2050:

^  Net electricity production [TWh/year]*  ^^^
^  ^2011 ^2050 ^
^[[hydro_river_more_2|Hydro river]] |16.94 |19.85 |
^[[hydro_dam_more_2|Hydro dam]] |17.29 |17.48 |


For the cost model it is necessary to know how the new electricity production is obtained (new dams, new run of river plants, existing plants improvement and renovation). The next table has been created with the information from PROGNOS(2012)<sup>[[#References|[2]]]</sup> and OFEN(2012)<sup>[[#References|[1]]]</sup>.

^  Brut development potential by 2050 [GWh/year]  ^^^
^  ^[[hydro_river_more_2|Hydro river]] ^[[hydro_dam_more_2|Hydro dam]] ^
^Renovation and extension |677 |793 |
^New big plants |1324 |108 |
^New small plants |1600 |0 |


===== References =====
[1] [[http://www.news.admin.ch/NSBSubscriber/message/attachments/27058.pdf|OFEN (2012), Le potentiel hydroélectrique de la Suisse. Potentiel de développement de la force hydraulique au titre de la stratégie 
énergétique 2050]]

[2] [[http://www.bfe.admin.ch/php/modules/publikationen/stream.php?extlang=de&name=de_564869151.pdf&endung=Die%20Energieperspektiven%20f%FCr%20die%20Schweiz%20bis%202050|Die Energieperspektiven für die Schweiz bis 2050. Energienachfrage und Elektrizitätsangebot in der Schweiz 2000 – 2050]]

[3] [[http://www.bfe.admin.ch/php/modules/publikationen/stream.php?extlang=fr&name=fr_886636566.zip&endung=Statistique%20des%20am%E9nagements%20hydro%E9lectriques%20de%20la%20Suisse|Statistique des aménagements hydroélectriques de la Suisse]]