Planenergi

  • Area Yield Comparison

    Solar Thermal Shows Highest Energy Yield Per Square Metre

    The annual energy yield per square metre is much higher for solar collectors than for other renewable technologies, as the figure on the left shows. Compared to PV, solar collectors produce, on average, three times as many kilowatt-hours. Compared to biomass or bioethanol, output is in...
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  • District Heating Workshop Netherlands

    Netherlands: Solar Thermal Benefits from SDE+ Solar Heat Tariff

    In the Netherlands, solar district heating plants with a capacity of 140 kWth or above can benefit from a feed-in tariff scheme called SDE+, which pays a certain amount per kWh of energy. Under the scheme, operators of renewable energy plants can apply for a subsidy to bridge the...
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  • District Heating in Denmark

    Denmark: Solar District Heating Capacity Nearly Doubles in 2016

    Last year was a record-breaking one for new solar district heating (SDH) installations in Denmark. With 31 new SDH systems and 5 plant expansions, the newly installed collector area grew at double the rate of 2015 and totalled 495,226 m² (347 MWth). The year prior saw 15 plants...
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  • Bore Hole Storage

    TASK 45 / 55: Guidelines on How to Design Seasonal Storage

    Seasonal storage is a key component in the transformation of today’s energy industry. Besides storing energy in summer for heating in winter, it can also be used to save waste heat from the industry and to increase the electricity production from biomass CHP plants. Experiences gathered...
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  • Big Ups and Downs on Global Market

    Big Ups and Downs on Global Market

    The global solar thermal market went into another year of notable decline in 2015. With 37.2 GWth, the newly installed glazed and unglazed collector capacity in the 18 largest countries was 14 % lower than in 2014 (43.4 GWth). Between 2013 and 2014, the decrease in...
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  • Denmark: Performance Guarantees Constitute Key Element in District Heating

    Denmark: Performance Guarantees Constitute Key Element in District Heating

    In Denmark, there are currently around 576,000 m² of solar collectors providing 403 MW of thermal power to 61 district heating systems. Another 28 plants with 395 MW and 564,000 m² of collector area are in the pipeline, according to a presentation held by Danish consultant Per...
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  • Denmark: 23 MWth Cover 55 % of Heat Demand of 1,500 Households

    Denmark: 23 MWth Cover 55 % of Heat Demand of 1,500 Households

    The new seasonal pit heat storage Sunstore 4 is at the heart of Marstal´s extended solar district heating network. The town on the Danish island of Aeroe receives 55 % of its heat from the 33,000 m² of solar collectors. The pit heat storage installation, the first of its kind...
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  • Germany/Denmark: Solar District Heating Prices between 37 and 88 EUR/MWh

    Germany/Denmark: Solar District Heating Prices between 37 and 88 EUR/MWh

    The calculation of solar heat prices very much depends on the frame conditions. The chart on the left shows heat prices for a solar district heating system, with costs differing between 37 and 88 EUR/MWh. The best-case scenario - with a 3 % low-interest loan and a 40 % investment subsidy –...
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