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    Air-conditioning buildings with salt hydrates

    In many office buildings, it is just as important to supply cooling in summer as heating in winter. Researchers have therefore developed salt hydrates that are suitable as storage material in chilled ceilings and centralised cold storage systems. The special advantage: Through a phase change, they store cooling energy with a high energy density and at the temperature level needed for air conditioning. This enables the required cooling to be provided very efficiently.  more...
     
    News 20.03.2017

    Sustainable, attractive university building

    On 11 March 2017, the new building by architect Daniel Libeskind was officially inaugurated in Lüneburg, Germany. The new main building of Leuphana University is open to students and culture fans now. The building is a flagship project for the transition towards a climate-neutral campus.  more...
     
    News 02.03.2017

    Darken windows in seconds

    When the sun shines, electrochromic windows keep the sun and heat out. However, until now, it has taken quite a long time for the windows to go completely dark. A new process lets windows react ten times faster.  more...
     

    "We have to increase our efforts!"

    The first ENERGIEWENDEBAUEN conference took place in Berlin from 30 - 31 January, 2017. Some 350 participants from research, academia, architecture and planning offices, politics, energy suppliers, cities and municipalities as well as the real estate industry discussed how the energy supply of buildings and districts could be made future-proof. The aim of the German federal government is to create a climate-neutral building stock by 2050. This will not be easy to achieve.  more...
     

    Fresh air without mechanical ventilation

    Ventilating non-residential buildings naturally but in a controlled manner saves primary energy and requires lower investment and operating costs than mechanical ventilation systems. Scientists from Stuttgart University have therefore developed a ventilation concept that ensures a good indoor environment and reduces the electricity consumption for operating the ventilation system.  more...
     
    News 14.12.2016

    Refurbishment roadmaps for districts

    So far, the rate of refurbishment of the building stock has been around one per cent. How could the annual refurbishment rate be increased significantly – to about three per cent? Together with municipalities, researchers are looking into obstacles while developing refurbishment plans for differently structured model districts. As planning instruments, these plans are intended to help municipalities tap into previously unused refurbishment potentials.  more...
     
    News 26.10.2016

    Learning and working in an energy-plus school

    Uhland School in Stuttgart, which dates back to the 1950s, no longer accorded with today's structural and energetic standards. The renovation work is now almost complete and the City of Stuttgart is getting its first energy-plus school. A photovoltaic system on the roof and façade of the building covers the electricity requirement.  more...
     

    Fun in a passive house pool

    The monitoring shows that the thermal heat and electricity consumption can be reduced even further during ongoing operation if the building is well-regulated, optimised and continually monitored. The public swimming pool complex in Bamberg consumes over 50 per cent less heat than comparable leisure pool facilities. A thermally high-quality building envelope allows indoor air humidities of up to 64 per cent. This reduces the pool water's evaporation rate and the necessary air change rate for providing dehumidification. This therefore also reduces the electricity and heating requirements.  more...
     

    Efficiently heating & cooling non-residential buildings

    The use of environmental energy to cool or, in combination with heat pumps, to heat non-residential buildings via thermo-active building systems (TABS) has established itself in recent years. The objective of such building and system concepts is not only to consume as little energy as possible in quantitative terms (low energy), but also to achieve the most optimal energy conversion in thermodynamic terms that takes the quality of the energy used into account (low exergy, „LowEx“).  more...
     
    News 26.01.2016

    Calculating and comparing refurbishment costs

    Maintaining and refurbishing municipal properties to improve their energy efficiency costs money that in many cases is lacking. A new software program now makes it possible to calculate different refurbishment scenarios for existing municipal buildings and to compare them in detail. This helps to strategically plan the investment in cities and local communities.  more...
     

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Events

03.05.2017 - 05.05.2017
Berlin

Berliner Energietage 2017
31.05.2017 - 02.06.2017
München

Intersolar 2017
20.11.2017 - 21.11.2017
Berlin

dena-kongress 2017

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