How a noise barrier becomes a solar plant and drives the energy transition

Biohotel with solar system on the roof on the shores of Lake Constance
Seehörnle Hotel of Caritas on Lake Constance with new solar system - Photo: Marco Rinderspacher
The "SeeEnergie ÖkostromHeimat" green electricity tariff from Stadtwerke Konstanz was awarded the Grüner Strom-Label. The electricity comes from photovoltaic systems that were built on a noise barrier. The environmental associations' seal of approval obliges energy providers to invest in the energy transition. For example, the photovoltaic system on the roof of the inclusive Seehörnle Hotel run by Caritas was co-financed.

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With the "SeeEnergie ÖkostromHeimat" electricity tariff, Stadtwerke Konstanz offers a future-oriented energy option that is characterized by its local generation and its active contribution to the energy transition. This tariff has been certified with the Grüner Strom-Label, which not only guarantees the origin of the electricity from renewable energy sources, but also ensures that investments are made in energy transition projects through the tariff.

Dual use: noise barrier becomes a source of solar power

The certified solar power stands out due to its energy source: In a cooperation between the municipality of Allensbach am Bodensee and Stadtwerke Konstanz, the electricity is generated by a photovoltaic system on a noise barrier. The wall on the B33 federal road between Allensbach and Markelfingen is a multi-talent: it protects against noise and produces environmentally friendly green electricity at the same time.

The company Solarcomplex built the photovoltaic system and is responsible for the technical management, while the municipality of Allensbach is the operator and owner of the system and the citizens of Allensbach benefit from an ecological and regional energy supply. This innovative solution shows what a sustainable infrastructure that combines different approaches can look like. Thinking such solutions together is a key building block for the success of the energy transition.

 

Photo: Josef Siebler

 

Green electricity for 1000 households in Allensbach

The photovoltaic system has 3,600 solar modules with a nominal output of around 1,922 kilowatt peak. The expected annual yield is around 1.9 million kilowatt hours, which can supply around 1,000 households with an annual consumption of around 2,000 kilowatt hours. If electricity consumption exceeds the plant's production, the additional demand will be covered by further certified green electricity. This guarantees the people of Lake Constance a reliable and environmentally friendly energy supply.

Green electricity supports inclusion

Every kilowatt hour of certified green electricity consumed triggers a fixed amount of investment in energy transition projects. The energy provider can channel the investment commitment into various areas that support the energy transition. Most recently, the funding was used to co-finance a photovoltaic system on the roof of the Seehörnle Hotel on Lake Constance, a Caritas project. The Seehörnle Hotel is an organic hotel and a recognized inclusion business that focuses on togetherness and sustainability. It supports people with disabilities and offers them not only a home, but also jobs that are tailored to their abilities. Thanks to certified energy tariffs from Stadtwerke Konstanz, the hotel can now produce around 31,000 kilowatt hours of green electricity itself every year, which represents a further step towards sustainable self-sufficiency.

Innovative energy transition projects like this can be supported from the comfort of your own home with the right green electricity and biogas tariff: In our comparison portal vergleich-dich-gruen.de you will find a wide range of energy tariffs that contribute a fixed amount to sustainable projects for every kilowatt hour you consume.

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How a noise barrier becomes a solar plant and drives the energy transition

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Green electricity tariffs awarded with the Grüner Strom-Label guarantee investments in energy transition projects that are compatible with nature.

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Together for the energy turnaround

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Melina Lukas, employee of Grüner Strom Label e.V.

Melina Lukas

Management consultant, green electricity certification

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Co-Head of Green Electricity Certification, Green Gas Certification Officer