Chamoson-Chippis high voltage line

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High voltage lines in the Rhone Valley near Chamoson

The high-voltage line Chamoson-Chippis is an extra- high voltage line in the Swiss canton of Valais and will be built by the network operator Swissgrid by 2022.

Project

It is a section of the new extra-high voltage line, which runs from Romanel near Lausanne to Chippis near Sierre and, according to the Swiss sector plan, transmission lines should facilitate the transport of electrical energy between the Valais and the western plateau . It connects the substations at Chamoson in the lower Valais with the Creux-de-Chippis substation east of Sierre. The overhead lines from the power stations at Riddes, which are operated by the Forces Motrices de Mauvoisin and the Grande Dixence hydropower plant , meet in the Chamoson and Riddes substations . In the Creux de Chippis substation , the energy produced in the power plants is fed to the overhead lines that cross the Upper Valais and lead over the Bernese Alps to the Swiss Plateau ( Gemmileitung ) and over the Nufenen Pass into Ticino . From Chamoson, the Sanetsch line connects the Valais power rail with the canton of Bern.

The 30-kilometer overhead line will be built to the left of the Rhone at the foot of the high, south-facing mountain flank and thus bypasses the agglomerations of Sion and Sierre and other localities in the Rhone Valley. Up to four different voltages are carried in parallel on the 77 metal pylons of the overhead line, depending on the section: 380 kV and 220 kV, and between Chamoson and Saint-Léonard, 132 kV of the overhead line of the SBB and also 65 kV of the Valgrid network company from Valais . The new substation at the former Chandoline power station will be connected to the overhead line south of Sion.

With the approval of the Federal Office of Energy in 2010, the high-voltage line will be built on behalf of Swissgrid in the period from 2019 to 2022. After commissioning, older high-voltage lines in this part of the Rhone Valley and in the Poutafontana nature reserve near Grône can be dismantled.

Criticism and project adjustments

During the planning phase, which began in 1986 at the French-speaking Swiss electricity company EOS , and especially after the new project was launched by Alpiq in 2002, various stakeholders submitted several objections to the construction project, some of which led to project changes. The choice of the route through landscapes with high natural hazards (landslide and rockfall risk at Salins and Agettes ) and the impairment of the landscape due to the masts up to 100 meters high were criticized . In 2018, the Great Council of Valais approved by a large majority an initiative that called for the construction work to be interrupted, and demonstrations took place in Valais because of the project. In Grône , a citizens' initiative rejected the route initially planned, which would have passed close to a school; Because of the complaint, the Valais State Council also approved the relocation of this line section; Out of consideration for the protection of the population, various environmental protection associations ( WWF , Pro Natura , Pro Natura Wallis) declared that they would not object to the construction of the masts near Grône on the wooded mountainside. The proposal to run the line through cables laid underground, as requested by the Protégeons nos enfants des lignes THT association from Grône and also the local authorities there, had, due to technical reasons and higher investment costs, which are cited in an expert report prepared by the electricity industry, no chance and, following a decision by the Federal Administrative Court in 2012, it was also not approved by the Swiss Federal Supreme Court .

In the course of the project revision, Swissgrid decided, in accordance with a condition in the building permit from the Swiss Federal Office of Energy , to reduce the noise pollution of the new line (" coronal noise ") by installing three conductor cables per bundle . The Federal Administrative Court dismissed the complaints filed against the approval of this variant by the Federal Office of Energy on December 14, 2016. The Swiss Federal Court on September 1, 2017 and the Federal Inspectorate for Heavy Current Installations and the Federal Administrative Court rejected various other complaints against the project procedure in October 2019.

See also

literature

  • Irene Aegerter (inter alia, ed.): Future power supply Switzerland. Swiss Academies of Arts and Sciences. Bern 2010

Web links

Individual evidence

  1. ↑ Nufenen line is in operation. Alpiq , October 21, 2005, accessed on August 6, 2020.
  2. ↑ 2018 / S 231-529201 construction contract. tenders electronic daily, November 30, 2018, accessed August 12, 2020.
  3. ↑ Vive opposition à la ligne Chamoson-Chippis , bluewin.ch, accessed on August 5, 2020.
  4. ↑ Extra high voltage line Chamoson-Chippis - New studies on the location of masts. Canton of Valais, media release of June 7, 2018, accessed on August 6, 2020.
  5. ↑ Grégoire Baur: En Valais, un obstacle de moins à la modification du tracé de l'autoroute électrique. In: Le Temps , June 5, 2020.
  6. ^ High voltage line Chamoson-Chippis-Mörel-Ulrichen. Electricity lobbyists exploit the federal working group. In: Rote Anneliese , 205, November 2008.
  7. ↑ 380 kV high voltage line Chamoson-Chippis-Mörel-Ulrichen. ABB Group provides the solution for underground cabling. In: Rote Anneliese, 202, November 2008.
  8. ↑ Anita Merkt: Under or over? A decision by the Federal Administrative Court is something to talk about. In: Tages-Anzeiger , August 31, 2012, accessed on August 12, 2020.
  9. ↑ La ligne THT Chamoson-Chippis ne sera pas enterrée In: Le Nouvelliste , June 16, 2020, accessed on August 5, 2020.
  10. ↑ The high-voltage line in Valais does not have to go into the ground . NZZ , June 7, 2013, accessed on August 12, 2020.
  11. ↑ The Chamoson – Chippis high-voltage line has been approved. Swissgrid must reduce noise . Walliser Bote , January 20, 2015.
  12. ↑ Federal Administrative Court: Judgment A-973/2015 of December 14, 2016.
  13. ↑ Chamoson-Chippis high-voltage line. Protective measures with astronomical costs and damage to the landscape. Interpellation Mathias Reynard , Federal Parliament, accessed on August 5, 2020.
  14. ↑ Complaint against high-voltage line Chamoson-Chippis rejected. In: Walliser Bote , October 3, 2019, accessed on August 6, 2020.