Dom Valentina Staniča with reduction of environmental impact by at least 30 %

date: 28.09.2020

category: Sporočila za javnost

 

The Faculty of Mechanical Engineering, or more precisely the team of the Laboratory for Thermal Energy, together with the Slovenian partners of the  Planinska zveza Slovenije (Alpine Association of Slovenia, hereafter referred to as PZS), Razvojni center za vodikove tehnologije (Hydrogen Technology Development Centre, hereinafter referred to as RCVT ) and the Javornik -Koroška Bela Alpine Association, despite an unusual year in the framework of the European project LIFE SustainHuts (http://sustainhuts.eu/), has succeeded in installing a new system for the provision of electricity from renewable energy sources in the mountain hut Dom Valentina Staniča in the Slovenian Alps (2332 m above sea level).

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Figure 1: In the mountain hut Dom Valentina Staniča pod Triglavom (2332 m), no fossil power generator is needed anymore

A photovoltaic system with a nominal output of 6000 W and a wind turbine with a nominal output of 1000 W were installed together with a battery pack with a capacity of 1500 Ah at 24V (36 kWh). The control system and the system for recording and processing operating data (VictronColorControl GX) were also upgraded. The system was tested for three months until 20 September 2020, when the mountain hut was closed. The operation can also be monitored via online access, which allows potential operating problems to be quickly identified and the proportion of electricity generated from PV or wind to be monitored.

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Figure 2: Dušan Prašnikar (PZS) and Olga Oven, president of the Javornik-Koroška Bela Alpine Association

»The functioning of the system is perfect. Until this year we were used to using a petrol engine for at least two hours every day. We do not do that anymore, because we did not even let it run for even one minute in 2020. Moreover, we have not managed to use all the available electricity at all, so we will have to increase our electricity consumption in the future (laughs), « says Olga Oven the president of Javornik-Koroška Bela Alpine Association, which is responsible for the supply and operation of the hut.

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Figure 3: 3 kW PV system installed on the outbuilding and 1 kW StormyWings wind turbine

The PV consists of 20 PV modules with an output of 300 W (Luxor Ecoline 300) each and is installed partly (3 kW) on the roof of the mountain hut and partly (3 kW) on the roof of the outbuilding. A 1 kW wind turbine is installed at an optimal location for wind availability. The petrol unit remains in the system as a »back-up« or for power supply in case of unforeseen errors.

Reduction of environmental impact by at least 30 %

LCA calculations show that a reduction in emissions (CO2, SOX, NOX, PM) of at least 30 % per year can be expected only if the petrol engine is not used, while we expect a reduction in greenhouse gas emissions of 23 %. The LCA calculation includes the entire energy supply (electricity and heat) of the mountain hut before and after the energy renovation.

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Figure 4: Reduction of emissions following the installation of a new system for the supply of electricity from renewable energy sources

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Figure 5: System for power supply in the mountain hut Dom Valentina Staniča pod Triglavom

 

A group of Slovenian partners from the LIFE SustainHuts project visited the hut before closing in September and checked the system, installed a metrological weather station and officially closed another success story of the SustainHuts project. We would also like to take this opportunity to thank the Slovenian Army for their help in transporting all necessary components to and from the hut.

 

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Figure 6: Slovenian partners (FS, PZS, RCVT) during the flight to Dom Valentina Staniča pod Triglavom

 

 

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