Multi-junction solar cells are suitable for concentrating photovoltaics in sunny countries. The efficiency of the module reaches 41 percent.
Modules for concentrating photovoltaics are to be built directly on site in sunny countries to save transport and production costs.
Special measurement methods monitor the condition of the power electronics and determine the remaining lifetime of the individual components.
No lime on bearings and seals of submersible pumps that pump hot and calcareous thermal water at a depth of several hundred metres.
LaserJetDrilling is the name of a new process in which a laser beam that is guided within a water jet weakens hard rock before it is actually drilled.
Test benches offer reproducible conditions compared to testing new wind turbines in the open field. But is this data enough for certification alone?
Bifacial silicon solar cells achieve an efficiency of 21.6 per cent. New ultra-thin wires cut more wafers from a silicon crystal.
A new screen printing process enables the printing of narrow contact fingers on silicon solar cells of less than 20 microns.
Straw and chicken manure accumulate in large quantities and are suitable for material and energy recovery in biogas plants.
