Sweden

  • Sweden: Increased Subsidy Budget

    Sweden: Increased Subsidy Budget

    Solar roof in the Swedish city of Onsala: The increased subsidies in Sweden focus on larger collector fields – like the 220 m2 plant from 2005.
    Photo: Jan-Olof Dalenbäck

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  • More Research Needed for New Storage Materials

    If solar energy is to be the primary or only source of heat for houses in the future, there will arise a need for storing it more efficiently. Materials have to be found that are able to hold more energy than water, but with less volume and higher loss. Task 32 of the International Energy...

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  • Front-runners of solar district heating

    Feeding directly into the district heating system of the Austrian city of Graz: The collector fields are mounted on four different hall roofs belonging to the AEVG, a municipal waste disposal company. Photo: S.O.L.I.D. / Oberländer

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  • Is there enough sunshine in all regions?

    Solar thermal systems produce hot water whether the system is installed in Sweden, Germany, India, Tunisia or South America. The annual yield depends on the application (domestic hot water, pool heating, space heating), the local climatic conditions and system dimensioning (high or low solar fraction). The annual collector yield per square metre of collector area lies around 250 kWh/m2 for unglazed pool heating systems, 400 kWh/m2 for solar combi systems for hot water production and space heating in northern regions, and up to 700 kWh/m2 for installations in southern European regions used only for hot water preparation.

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