Foto de stock - 21 May 2019, Thuringia, Erfurt: Anja Siegesmund (Bündnis90/Die Grünen), Minister of the Environment of Thuringia, has Paul Gaspar from Ritter Energie- und Umwelttechnik GmbH explain the solar thermal plant in Marbach to her. The plant is inaugurated on the same day. The pilot plant was installed by SWE Engergie GmbH. The solar collector field in Marbach measures 3000 square metres and can supply up to 120 households with hot water. Photo: Martin Schutt/dpa-Zentralbild/dpa. - Erfurt/Thuringia/Germany

Imagen: 21 May 2019, Thuringia, Erfurt: Anja Siegesmund (Bündnis90/Die Grünen), Minister of the Environment of Thuringia, has Paul Gaspar from Ritter Energie- und.

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