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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...
     

    Predictable heat yield

    The demand for large-scale solar thermal systems in district heating networks is increasing. Thereby the need for more powerful calculation programs is also increasing. Investors require predictions of the expected heat yield of solar thermal systems for their projects. A new calculation program shall now make that possible.  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...
     
    Projektinfo 10/2016

    Fuel cell generates electricity and heat for homes

    Highly efficient, low-emission and quiet: as small-scale combined-heat-and-power stations, new fuel cell heating units produce heat energy and electrical energy with an efficiency of over 90 per cent. They have proven themselves in extensive tests in single and two-family homes, and their operation and design have been improved incrementally. The first units are now on the market. They run on natural gas, and on hydrogen and methane produced using renewable energy or biomass. Decentralised fuel cells can generate demand-oriented electricity, and they can be used in a grid-friendly or grid-independent way.  more...
     
    Projektinfo 09/2016

    Assessing solar houses in energy and economic terms

    With the German Energy Savings Ordinance 2016, the maximum value allowed for the annual primary energy requirement for new residential buildings has been reduced by a quarter. This is not a problem in solar houses: they require a maximum of 15 kWh/(m2p.a.) of primary energy for heating energy and auxiliary power and are therefore well below the requirements of passive houses. The cost of this good CO2 balance can be determined using a newly developed simulation method.  more...
     

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Events

03.05.2017 - 05.05.2017
Berlin

Berliner Energietage 2017
10.05.2017 - 12.05.2017
Bad Staffelstein

27. Symposium Thermische Solarenergie
11.05.2017 - 12.05.2017
St. Gallen

Energie-Tage St.Gallen 2017

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Predictable heat yield
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