Open menu

CleanTech News

The latest news about environmental and green
technologies – renewables, energy savings, fuel cells

RSS Subscribe to our Cleantech News feed

Building towards 'nearly zero energy' cities

An ambitious four-year project is to develop and demonstrate replicable strategies for designing, constructing and managing large scale district renovation projects for achieving nearly zero energy cities. The results will open the way for new refurbishments that bring the EU closer to its 2020 goal of ensuring that all new buildings consume very little energy.

Posted: Nov 5th, 2013

Read more

New ideas needed to meet California's 2050 greenhouse gas targets

California is on track to meet its state-mandated targets for reducing greenhouse gas emissions for 2020, but it will not be able to meet its 2050 target without bold new technologies and policies. This is the conclusion of the California Greenhouse Gas Inventory Spreadsheet (GHGIS), a new model developed by the U.S. Department of Energy's Lawrence Berkeley National Laboratory to look at how far existing policies and technologies can get us in emissions reductions.

Posted: Nov 4th, 2013

Read more

'Green' concrete under construction

It is all around us. But most of the time, you can't see it. And there is a good reason why scientists are currently focusing their research efforts on it.

Posted: Oct 31st, 2013

Read more

Thin-film photovoltaics achieves 20.8% efficiency and overtakes multicrystalline silicon technology

In the race for higher power yields, the Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg (Centre for Solar Energy and Hydrogen Research, ZSW) has set a new world record. The Stuttgart researchers have improved the efficiency of CIGS thin-film solar cells to 20.8%. This figure is a record for converting sunlight into electrical energy and, for the first time, it exceeds the efficiency of market-dominating multicrystalline silicon solar cells.

Posted: Oct 31st, 2013

Read more

Energy-saving: it's a social thing

With energy bills again rising and the winter approaching, researchers from Keele University in the UK have found a positive way of helping householders to keep their energy costs down and houses warm.

Posted: Oct 28th, 2013

Read more

Urban underground holds sustainable energy

Vast energy sources are slumbering below big cities. Sustainable energies for heating in winter and cooling in summer may be extracted from heated groundwater aquifers. Researchers from KIT and ETH Zurich developed an analytical heat flux model and found that increasing heat in the underground is mainly caused by an increase in surface temperatures and heat release from buildings.

Posted: Oct 28th, 2013

Read more

Bio-electrochemical systems: electricity generators of the future?

Billions of euros are spent treating trillions of litres of wastewater every year, consuming substantial amounts of energy. However, this wastewater could act as a renewable resource, saving significant quantities of energy and money, as it contains organic pollutants which can be used to produce electricity, hydrogen and high-value chemicals, such as caustic soda.

Posted: Oct 25th, 2013

Read more

A thermoelectric materials emulator

Converting heat directly into power could be a major source of renewable energy. A novel approach to study this so called thermoelectricity may help to design new materials that are highly efficient. In an experiment with cold atoms trapped by lasers at ETH Zurich an international group of physicists precisely simulates the behavior of thermoelectric materials.

Posted: Oct 24th, 2013

Read more