Tropical house Frutigen – Wikipedia
| Tropical house | |
|---|---|
| legal form | Division of the Coop |
| Seat | Fraud |
| Management | Nicolas Buchmann (managing director) |
| Number of employees | 75 [first] |
| Sales volume | CHF 5.8 million [first] |
| Website | tropenhaus-frutigen |
| Status: December 31, 2018 | |
The Tropical house is a greenhouse and a breeding system in the Swiss community of Frutigen (Canton of Bern). In the extensive system of the tropical house, which is open to a fee, exotic fish and plants are bred in a tropical climate. The warmth is obtained from the warm mountain water escaping in the Lötschberg base tunnel.
In the tropical house frutigen with its 75 employees [first] are the first disruptive breeding of the alpine space [2] And the only Swiss company to obtain caviar. [2]
The tropical house is located on the narrow, a left tributary of the Kander, outside the village center of Frutigen near the airfield and about two kilometers north of the first experimental station. [3]
On the north side of the Lötschberg base tunnel, about 100 liters of warm water occur per second. [4] Around 9,000 cubic meters of water leave the tunnel with a pressure of 45 bar every day. [5] [3] The mountain water mainly comes from the limestone layers of the Doldenhorn ceiling, which crosses the tunnel below the Kander and the Gasterner Valley. [4]
The water is caught in the mountain with a drainage system and in closed lines- separated according to mountain and dirty water [6] – derived to the two portals of the tunnel. From its apex to good 828 m ü. M. A distance of 14.8 kilometers is drained up to the north portal near Frutigen, which is almost 52 meters lower. On the longer route south of the tunnel section, the water at Raron (canton of Valais) reaches the Rhone. A transition pumping station in the tunnel makes it possible to pay mountain water from the north side via the apex point into the Valais. [5] The dirty tunnel tunnel water is directed into retention systems, checked for pollutants and, if necessary, retained. [6]
Due to the depth of the base tunnel under the surface of the terrain and the resulting geothermal heat current, the mountain water has a relatively constant temperature of around 19 ° C. [5] In the event of a direct introduction to the Kander, the mountain flow could be overwhelmed, especially in the event of low water in winter, which would affect the fish stocks, because the Kander is important as a promotion and spawning waters, especially for the strongly endangered sea tribute, which is a spawn here in winter . [3] Based on the water protection legislation, the cantonal authorities therefore have that the water temperature of the Kander may increase by 0.5 ° C by initiating mountain water from the Lötschberg base tunnel. [5]
In order to meet these requirements, the Bernese power plants (BKW) withdraw the excess energy with a heat pump. For the main complex, an energetically usable amount of water from the mountain of an average of 85 liters per second is based, which corresponds to an output of 6.83 megawatts at 19 ° C. [5] In addition to the hot water preparation for the fish breeding pools and the heating energy for greenhouse and visitor areas, neighboring companies such as BLS AG are also supplied with heating as part of a local heating network. [5]
Solar modules are mounted on the roof of the visitor building. The solar power plant delivers around 140 MWh all year round. [7]
Before the construction of the Tropenhaus Frutigen, a first pilot facility was initially operated at the North Portal Helke of the Lötschberg base tunnel as part of a research project, for which around 20 liters of warm mountain water per second in the Kandertal service stollen were branched off. [5]
The project for the current tropical house started in 2002 with a feasibility study. In 2003, the Tropenhaus Frutigen AG, based in Frutigen, was founded. [8] The voters of Frutigen in 2005 approved the change in the zone plan necessary for the construction of the facility. Due to the support from the funding agency for Innovation KTI, other investors were found that assured around CHF 16 million capital. As an important long -term partner, the retail company Coop with risk capital joined the company in early 2007 and at the same time gave the company a sales channel. The planning work began in summer 2007, [3] In May 2008, the beginning of the structural implementation was celebrated with the groundbreaking ceremony. The opening took place on November 21, 2009. [8] In 2017, the Tropenhaus Frutigen AG was incorporated into the Coop cooperative [9] and the company (Tropenhaus Frutigen AG) deleted. [ten]
The tropical house is divided into three parts: the glass greenhouse, in which the plants are bred, the outside area with the fish pool and the main building with the entrance to the visitor and a permanent exhibition on fishing and sturgeons. All three areas are connected by a tour and wheelchair -right. Two restaurants with an event zone are attached to the greenhouse. All rooms can be combined with up to 250 people for occasions.
For architecture and design, the Gim Gauer Itten Messerli from Bern under the overall planning of Emch+Berger from Bern and the construction management Marti architecture from frutigen. The facade consists of 67 individual elements with rock -like structures. The main building is built in the MinergieSandard. The interior of the system is characterized by various spaces sequences and transitions.
Tropical plants [ Edit | Edit the source text ]
When growing and maintaining the plants, the tropical house Frutigen was able to benefit from the experiences of the tropical house in Wolhusen, which has grown tropical fruits since 1999. [11] For the greenhouse, an annual production of 20 to 40 tons of bananas, papaya, mangoes, dwarf bananes, guaves, physalis, litchi, durian, mangostan, pampel muse, grenade apples, avocados, pineapple and kumquat. [11] Various spices such as ginger, chilli, vanilla and pepper are also grown. [11] The fruits and spices are also processed directly into drinks and dishes in the affiliated restaurants.
Fish farming [ Edit | Edit the source text ]
In the tropical house there is the first alpine sturgeon breeding and the only facility in Switzerland in which caviar is produced. [2]
The entire system is for 60,000 sturgeons – mainly Siberian sturgeon ( Acipenser Baerii ) and Sterlet ( Acipenser ruthenus ) – designed. [2] Later, around 80,000 Siberian sturgeons were kept. [twelfth] 60 kilograms of fish per cubic meter of water would be possible. However, since it is to be produced according to biological principles, such an utilization is not sought. [3] Rather, after a few years, it was not more than 35 kilograms per cubic meter. The sturgeons are located in an outdoor pool, the water of which is renewed every one to two hours. [13]
The entrepreneurial goal is to produce two to three tons of caviar annually with a sales value of CHF 2,000 per kilogram. [3] The products are sold to guests and regional gastronomy, now also exported to Austria and Germany [14] .
The fish are sorted by weight once a year so that they get the right amount of feed, which is important for the yield and quality of meat and caviar production. [2] Among other things, feed insects are used because they come very close to the natural food of the sturgeons with regard to amino and fatty acids. [3] However, imported fish flour is mainly fed. [14] Feeding takes place automatically, whereby the amount of feed is calculated according to the number and age of the interference. [13] The pelvic floor is smooth and self -cleaning, so that the sturgeon that is eating on the bottom of the reason is not disturbed by contamination in its feeding behavior and grows more slowly due to less food intake. [3]
At the start of production, the company imported 1200 young animals. [3] Newly bought fish were first kept in a quarantine station. [13] Visitors will also be different types of interference such as Albino Sterlet , Shown spoonful or Beluga. [twelfth]
The tropical house hands over the separate sludge of the fish of the biogas plant Ecogas-frutigen to let them ferment so that electricity can be produced. The facility went online on June 26, 2012. Further organic waste such as mud from the sewage treatment plants and the Kandersteg and Gastro waste are prepared and fitted in a co-substrate module. The system has an electrical output of 64 kW and a thermal output of 92 kW. [15] [16]
In 2007, the Tropenhaus Frutigen project was awarded the Prix Evenir of the oil association. On November 27, 2009, the tropical house was awarded the 17th award winner with the Swiss Innovation Award 2009 of the SRG SSR Idée Suisse. On August 26, 2010, the tropical house received the ICD Award from the international boss Days Davos as Innovative trendsetter . In 2010 the tropical house received the Milestone in the sustainability category and 3rd place in the Zurich Climate Prize in 2011. On the 10th place in the category of Switzerland’s most beautiful experience locations, the Tropenhaus Freutigen was allowed to receive the Swiss Location Award 2017. [17]
- ↑ a b c Factsheet tropenhaus frutigen. (PDF; 738 kB) In: Report.coop.ch. Accessed on September 3, 2019 .
- ↑ a b c d It is Swiss television: Einstein (ed.): The pitfalls of sturgeon breeding . 19. November 2009 ( srf.ch ).
- ↑ a b c d It is f g h i Federal Office for Vocational Training and Technology, Promotion of Innovations KTI: KTI Success Story, organic caviar thanks to Lötschberg-Basistunnel . Bern March 2007.
- ↑ a b Case study tropenhaus frutigen. (PDF) In: Jobst Willers Engineering AG. Accessed on January 29, 2018 .
- ↑ a b c d It is f g Christoph Keatter: Heating with warm mountain water: Frutige uses the water from the Lötschberg base tunnel to generate heat . March 2008.
- ↑ a b BLS AG – corporate communication (ed.): Neat Lötschberg. Building, operation and transport offerings . May 2007.
- ↑ Project weeks Bernese Oberland (ed.): Geothermal energy and renewable energies . S. twelfth .
- ↑ a b Company. In: Tropical house frutigen. Accessed on January 29, 2018 .
- ↑ Company. In: Tropical house frutigen. Retrieved on December 30, 2018 .
- ↑ Tropenhaus Frutigen AG. In: Zefix. Retrieved on November 14, 2020 .
- ↑ a b c Papaya from the Bernese Oberland. In: Tropical house frutigen. Accessed on January 29, 2018 .
- ↑ a b First alpine interference breeding and caviar production. In: Tropical house frutigen. Retrieved on December 30, 2018 .
- ↑ a b c Project weeks Bernese Oberland (ed.): The sturgeon and its valuable eggs . S. 9 f .
- ↑ a b Exototic products “Swiss Made”-that’s why caviar and shrimp from Switzerland are booming. In: srf.ch. 16. April 2022, accessed on April 16, 2022 .
- ↑ How to get electricity for cooking from September 27, 2013, accessed November 15, 2013.
- ↑ Ecogas. (No longer available online.) In: SwissEcoSystems GmbH. Archived by Original am January 29, 2018 ; accessed on January 29, 2018 . Info: The archive link has been used automatically and not yet checked. Please check original and archive link according to the instructions and then remove this note.
- ↑ Our awards. In: Tropical house frutigen. Accessed on January 29, 2018 .
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