To the media release of 29 January 2024.
With specific annual yields of up to 1,700 kWh/kWp, output power of around 38 MW, annual electricity production of 66 GWh and a winter electricity share of around 45%, the installation boasts the ideal key figures for helping to secure the electricity supply in winter.
ewz is strongly rooted in the Grisons area and has been operating hydropower plants and distribution grids in the region for decades. The existing infrastructure facilities at the Nandro small hydropower plant can therefore also be used for the energy discharge from the PV plant. There is also an access road to Curtegns, which makes the construction logistics much easier.
The planned PV system is to be installed adjacent to the Savognin ski area. The affected areas are not located in any national or local conservation area. Dual use with alpine farming and electricity generation is also being sought. The PV system will not be visible from the valley.
This project will enable the municipality of Surses, together with the Val Nandro Alpine Corporation and ewz, to show that sustainable energy production in Switzerland can be expanded to ensure a secure energy supply.
Both the municipality and the Val Nandro Alpine Corporation, as manager of the land, should benefit from financial remuneration.
The PV system produces two and a half times more electricity from solar energy than the municipality of Surses consumes annually. The Surses Electricity Service, as the local energy supplier, will have the option of purchasing electricity from the PV system and supplying it to its end customers.
For the energy discharge from the PV system, ewz will install a 30kV transmission line from the Tinizong substation to Radons using the infrastructure at the Nandro small hydropower plant, most of which already exists. This means that it will be easy to supply future projects in Radons, such as a snow-making system. This would not be possible with the existing infrastructure.
ewz will set up a company for the construction and operation of the PV system, which will be based in the municipality of Surses. This will generate tax revenue in the municipality of Surses. In addition, property taxes are incurred.Klicken, um Alternative zu verwenden
Where possible, local companies will be considered for the work carried out during the construction and operational phases. This will increase added value in the region.
View of the planned Radons PV system.
View of the planned Curtegns PV system.
Theoretical view of the areas from the air – not visible in this form from any valley.
The red markings show the areas where the PV system is to be installed. These areas are not visible from Savognin.
A PV test system was installed in Val Nandro in November 2023. 46 panels will provide valuable insights into wind conditions, air temperature and solar radiation, among other things.