Planenergi

  • Five multi-megawatt district heating plants under construction

    Denmark’s turnkey system suppliers are dominating the European solar district heating market. Over the past weeks, they have begun construction on five solar fields larger than 10,000 m² (7 MWth), with four having been announced by Arcon-Sunmark and one by Aalborg CSP. All of...
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  • Seasonal pit heat storage: Cost benchmark of 30 EUR/m³

    Denmark has had a successful learning curve regarding to the cost and efficiency of seasonal pit heat storage, which is used to store sunlight in summer for heating purposes in winter. Take Sunstore 3, for example, a 60,000 m³ pit heat storage system built at a cost of 38 EUR/m³ of storage...
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  • GBP 320 million for low-carbon heat networks

    Heat networks have proved to be a reliable and cost-effective means to supply low-carbon thermal energy. And yet, just 2 % of buildings in the UK are connected to them. As a result, the Department for Business, Energy and Industrial Strategy launched the Heat Networks Investment Project (...
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  • “Solar heat can be more cost-effective than gas in district heating”

    In the Western Balkans, one of Europe’s southernmost regions, large district heating networks are a common sight. Some of those are run at return temperatures as low as 45 °C, making them well-suited for solar energy, according to Bojan Bogdanovic (see photo), Principal Fund Manager of the...
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  • Solar district heating potential of small towns in Europe

    Most small European towns connected to a district heating network have enough land available for a solar field to meet 20 % of heat demand. In all, 93 % of the identified solar heat potential can be produced at a price of less than 50 EUR/MWh. These are the key findings from a study by...
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  • Photo: Riccardo Battisti

    On-site collector testing: new standard in development

    Once a large solar field is set up at its designated location, what tests can be conducted to show that it performs as expected? Soon, the IEA Solar Heating & Cooling Programme may have an answer to this question, as it is working on internationalising Denmark’s testing procedure. No...
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  • Chart: Hamburg Institut

    How to identify suitable areas for SDH

    Though the availability of areas for large solar district heating plants remains a major point of contention, there are ways to expand the market. They include detailed local heat plans, the use of unconventional, e.g., polluted or contaminated, areas, and awareness raising among public and...
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  • NFOŚiGW

    Solar to replace coal in Polish district heating networks

    Zbigniew Kamieński, adviser to the president of NFOŚiGW’s board, has recently made some encouraging statements. During the conference Use of renewable energy sources and seasonal heat storage in district heating in Warsaw on 17 January, he said that the proposal of a new subsidy...
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  • Embedded thumbnail for SHC 2017 / Jan Erik Nielsen: Global Solar Certification Network

    SHC 2017 / Jan Erik Nielsen: Global Solar Certification Network

    To enter new markets, solar thermal manufacturers need to test and certify their products according to the local standards. The Global Solar Certification Network enables them to complete several certification processes based on only one testing cycle. This saves a lot of money and time.

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  • Lithuania District Heating

    Lithuania: Can Solar Thermal Beat Low Biomass Heat Prices?

    With biomass prices on the rise, solar district heating could become profitable in Lithuania. But without investment grants, payback periods were still too long, it said in the conclusion of a 2015 SDH market study by LEI, the Lithuanian Energy Institute (see the attached document in...
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  • 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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