immo!nvest – Die Plattform für Standorte und Immobilien

Tag: Solarfaltdach

  • Double use of space increases solar power production

    Double use of space increases solar power production

    According to a press release, ARA Thunersee has inaugurated HORIZON, the largest movable solar folding roof in the world. It was realized by the cleantech company dhp Technology from Zizers. With an installed capacity of 3.6 megawatts peak and around 3 gigawatt hours of electricity, the system will supply 700 households.

    According to ARA Thunersee, the more than 20,000 square meter plant is based on technology from dhp Technology. dhp CEO Gian Andri Diem sees great potential in generating energy on existing areas. “This is how we create progress without taking up additional space,” he is quoted as saying.

    According to dhp’s project description, efficient use of space is relevant in order to make progress with the energy transition through photovoltaics. Wastewater treatment plants, logistics areas, waterworks and parking areas are particularly suitable for solar power production due to their previously unused areas. According to Ingo Schoppe, Managing Director of ARA Thunersee, “intelligent land use makes an active contribution to security of supply, economic efficiency and climate protection”.

    The solar folding roof spans several clarifiers and makes double use of existing infrastructure areas – for wastewater treatment on the ground and for solar power generation above. The electricity generated there is intended for wastewater treatment and local supply.

    Based on Swiss cable car technology, the roof is able to react to extreme weather conditions. It folds up automatically in the event of storms, snow or hail. This allows operational safety and energy production to be achieved without having to intervene in ongoing processes.

  • Lake Thun WWTP clarifier gets solar roof

    Lake Thun WWTP clarifier gets solar roof

    ARA Thunersee will also generate solar power in future. As decided by the delegates of the municipal association on 1 November, a solar folding roof is to be installed on the roof of the wastewater treatment basin. They decided to invest 12.4 million Swiss francs in the project, according to a press release. This should be amortised within 17 years.

    The folding roof from the manufacturer dhp technology, based in Zizers, will have a solar module surface area of 23,000 square metres. This will make it the largest photovoltaic system at a Swiss wastewater treatment plant and one of the largest in the canton of Bern. It will have an output of 3,000 kilowatts peak and generate 3 gigawatt hours of electricity per year.

    In addition, ARA Thunersee already produces 13 gigawatt hours of biomethane per year and feeds this into the natural gas grid of Energie Thun AG.

  • ARA Thunersee plans folding solar roof on the sewage treatment plant

    ARA Thunersee plans folding solar roof on the sewage treatment plant

    ARA Thunersee wants to expand the production of renewable energy. According to its annual report, which has just been published, it is planning a large folding solar roof system on the roof of the pre-treatment and biology basins. The folding solar roof is to be supplied by dhp technology AG in Zizers GR.

    The system is to be installed on an area of 20,000 square metres with a capacity of 3,000 kilowatt peak and an annual electricity output of 3 gigawatt hours. The plant’s capacity would cover up to one third of ARA’s own needs. Since the investment volume exceeds 5 million Swiss francs, it must be approved by the Assembly of Delegates on 1 November.

    Already under construction is a smaller solar roof system by dhp technology with 600 kilowatt peak above the basin for powdered activated carbon (PAH) dosing. It is to produce solar power from February 2024. This will cost 2.26 million Swiss francs.

    In addition, ARA Thunersee already produces 13 gigawatt hours of biomethane per year and feeds it into the natural gas grid of Energie Thun AG. Ingo Schoppe can also imagine converting the waste heat generated from wastewater during the purification process into electricity. “The technical solutions for this are ready; it is up to us and our partners to design these technical solutions in such a way that they are not only good for the environment, but also become economically feasible,” writes the managing director of ARA Thunersee in his report

    The board of directors submitted a credit application of 12.37 million Swiss francs for the entire plant to the assembly of delegates. The assembly also has to decide on awarding the contract to dhp technology, with whom a service contract is to be drawn up. Under Pronovo ‘s support programme, the plant operator can expect to receive a one-time investment grant (GREIV) of 985,000 francs for the planned plant. The timetable envisages the commissioning of the entire plant in the summer of 2025.

  • dhp brings its largest folding solar roof to Stuttgart

    dhp brings its largest folding solar roof to Stuttgart

    Zizers-based dhp Technology is building its largest folding solar roof to date for the main sewage treatment plant in Stuttgart-Mühlhausen. By spring 2026, 5280 modules are to be installed on an area of 17,000 square metres. According to a statement, the system with an output of 2745 kilowatts peak is the largest folding solar roof installed by dhp.

    With the Bündner technology, the sewage treatment plant in Baden-Württemberg’s state capital can generate up to 11 per cent of its annual consumption itself. In the medium term, a value of 18 percent is targeted.

    According to the plans of the Stuttgart municipal wastewater treatment plant(SES), solar modules will be installed not only in the aeration basin in the north of the 25-hectare plant, but also in the area to the south, which is of a similar size. According to SES, the investment will save more than 900 tonnes of carbon dioxide.

  • Swarm is supposed to give wings to solar folding roofs

    Swarm is supposed to give wings to solar folding roofs

    Dhp technology , based in Zizers, wants to raise fresh funds from investors for further growth. To this end, the manufacturer of the folding solar roof called Horizon is now starting a swarm financing campaign, according to a media release . The goal is between 1 million and 3 million francs. The minimum investment is estimated at 120 francs. The campaign is expected to last until the end of January 2022. It will be carried out on the platform of the Zug-based provider Conda.ch .

    With the solar folding roof from dhp, solar modules are retracted and extended on a cable construction. The control takes place automatically and is based on the weather data. For example, the system can protect itself from a storm.

    According to dhp, the roof is particularly suitable for sewage treatment plants. There are 800 of these in Switzerland and around 80,000 in Europe. In addition, Horizon can be used in park, commercial and logistics areas. The company estimates the economic potential in Europe at around 60 billion euros.

    The solar folding roofs have been manufactured in a factory in Zizers since 2019. Twelve dhp systems are currently in operation. The next ones are already waiting for delivery.

    On the one hand, the solar folding roof is to be further developed with the fresh money. On the other hand, sales abroad are to be promoted.