Ringgenbach photovoltaic system
| Ringgenbach photovoltaic system | |||
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| Coordinates | 47 ° 59 '22 " N , 9 ° 10' 35" E | ||
| country |
 Germany
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| Data | |||
| Type | Photovoltaic system | ||
| Primary energy | solar power | ||
| power | 1 MW | ||
| Energy fed in per year | 0.95 GWh | ||
The photovoltaic system Ringgenbach the Meßkircher district Ringgenbach was created in 2007 on the site of the abandoned county landfill . When it was commissioned, it was the largest communal photovoltaic system in Baden-Württemberg . Since 1996 the waste handled here has been recycled in the waste incineration plant in Ulm. The construction of the photovoltaic system was based on a decision by the district council of the Sigmaringen district in March 2007, which envisaged the construction of the system as a subsequent use of the landfill site. The total investment of around 4.4 million euros would be fully covered by the aftercare reserve of the district waste management. This is required by law and at the beginning of 2007 already amounted to more than nine million euros. The district administration calculates with the income of the feed-in tariffs resulting from the system with an annual surplus of more than 300,000 euros. The investment sum of a good 4.4 million euros would therefore turn into around 10 million euros in 20 years, which corresponds to an increase of a good 500,000 euros above the usual return on equity.
Originally, 6,156 solar modules from a Canadian manufacturer were to be installed on the 2.3 hectare site . The plan provided for the solar modules to be mounted on 684 steel frames, which are anchored with concrete foundations, each with nine individual modules. This results in a net module area of 8,000 square meters. The system that has now been built comprises 690 module tables with 6,210 photovoltaic modules. 60 tons of steel were used to construct the tables and 40 kilometers of cables were laid. This can produce 980 MWh per year . This corresponds to an actually achievable average output of 112 kW, which is about 1/10 of the installed output of 1.08 MW.
When installing the foundations, care had to be taken that the sealing of the landfill, i.e. the top layer, was not damaged. This seals the garbage underneath and largely prevents rainwater from penetrating the landfill and washing out toxins. Regardless of this top layer, landfill water is constantly accumulating, which has to be disposed of separately via the sewage treatment plant . The district's contractual partner for the plant is EnBW Regional AG.
After 16 weeks of construction, Baden-Württemberg's Environment Minister Tanja Gönner appeared at the opening celebrations on October 27 and 28, 2007 . In addition, Albstadt-Sigmaringen University demonstrated at an information stand how photovoltaic systems work. With their "shadowing and inclination test stand" - a small model system - the direct effects of misalignment and shadowing of the solar cells could be shown. In addition, information was provided about how photovoltaic systems are checked for their functionality.
Individual evidence
- ↑ Towards the sun . In: Südkurier. March 7, 2007
- ↑ Manfred Dieterle-Jöchle (dim): The system pays off . In: Südkurier . October 27, 2007
- ^ Manfred Dieterle-Jöchle (dim): Solar power for 300 households . In: Südkurier . October 27, 2007
- ↑ Martina Goldau (mag): Green electricity for 1000 people . In: Südkurier . October 29, 2007
- ↑ Solar power for the grid . In: Südkurier. October 19, 2007
- ↑ New facility . In: Südkurier. August 2, 2007
- ↑ Two days of festivities on an ex-landfill . In: Südkurier. October 26, 2007