Power and Electrical Engineering

This topic covers issues related to energy generation, conversion, transportation and consumption and how the industry is addressing the challenge of energy efficiency in general.

innovations-report provides in-depth and informative reports and articles on subjects ranging from wind energy, fuel cell technology, solar energy, geothermal energy, petroleum, gas, nuclear engineering, alternative energy and energy efficiency to fusion, hydrogen and superconductor technologies.

New four-terminal tandem organic solar cell

…achieves 16,94% power conversion efficiency. Researchers at ICFO have fabricated a new four-terminal organic solar cell with a tandem configuration with a 16.94% power conversion efficiency (PCE). The new device…

Keeping power in the cycle

Tests confirm quality of purified graphite from used lithium-ion batteries. Lithium-ion batteries have become an integral part of everyday life. The number of used batteries is correspondingly high. They contain…

Non-destructive on-site analysis of organic substances

… using a small modular spectrometer platform. Low-cost and compact: Individually configurable spectrometer platform developed. Compact and ultra-compact near-infrared (NIR) spectroscopy systems for the evaluation of organic substances are critical…

Elastocaloric cooling – Refrigerator cools by flexing artificial muscles

There is room for just one small bottle in the world’s first refrigerator that is cooled with artificial muscles made of nitinol, a nickel-titanium alloy. But the mini-prototype that the…

Helmet with vibration sensor for excavator drivers

Fraunhofer researchers have developed a helmet with an integrated acceleration sensor for drivers of construction vehicles. The helmet sensor measures harmful vibrations that affect the body. A software analyzes the…

A breath of fresh air for vertical wind turbines

To enable more wind turbines to be built in Switzerland, scientists are optimising vertical models that are more compact and quieter than conventional alternatives. One of the major challenges of…

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