Inventing a self-sustaining street furniture concept
JCDecaux and ARMOR’s objectives are to overcome the challenge of the energy transition, to be co-players in tomorrow’s sustainable city and to innovate in the area of urban communication methods. The two companies are unveiling a new-concept urban interaction demonstration unit.
A big nano boost for solar cells
"Current solar cells are not good at converting visible light to electrical power. The best efficiency is only around 20%," explains Kyoto University's Takashi Asano, who uses optical technologies to improve energy production. Higher temperatures emit light at shorter wavelengths, which is why the flame of a gas burner will shift from red to blue as the heat increases.
Predicting jumps in power input
Today’s commercially available silicon panels account for around 90% of total solar panel production. However, alternative solar technologies such as thin films (particularly perovskite solar cells) are developing rapidly. Renewables are considered the best energy source for reducing pollution and mitigating climate change.
Yeast could convert plant sugars into oils
MIT engineers have genetically reprogrammed a strain of yeast so that it converts sugars to fats much more efficiently, an advance that could make possible the renewable production of high-energy fuels such as diesel. The researchers, led by Gregory Stephanopoulos, the Willard Henry Dow Professor of Chemical Engineering and Biotechnology at MIT, modified the metabolic pathways of yeast that naturally produce large quantities of lipids, to ma...
Renewable energy could power the Nordic countries
The Nordic countries could manage their energy supply through renewable energy alone but it would require the right mix of energy sources and an adaptation of both energy storage and distribution. This is the conclusion of a new study from Uppsala University, published in the journal Nature Energy. “Many are sceptic to entirely or partly removing nuclear power and fossil fuels, since there can be large fluctuations in how much ele...
Alternative solar cells increase efficiency and stability
Imperial researchers are designing cheaper and more flexible solar energy materials, set to rival traditional rigid silicon panels. Solar cells are formed of light-absorbing materials that convert sunlight into electricity. The panels we are used to seeing covering fields or roofs of houses are made primarily from silicon. However, silicon panels are energy-intensive to produce, heavy and inflexible.
PV inverters bring high energy efficiency to cluster of solar plants
The PV inverter technology from Delta has been successfully integrated into a conglomerate of 126 solar PV power plants located in Vandel, Denmark totalling 50.4MW in AC output capacity.
SiC MOSFET reduces EV drive-train inverter losses by 78%
A 900V, 10mΩ MOSFET rated for 196A of continuous drain current at a case temperature of 25°C has been introduced by Wolfspeed. This device enables the reduction of EV drive-train inverter losses by 78% based on EPA combined city/highway mileage standards. This efficiency improvement offers designers new options in terms of range, battery usage and vehicle design.
Fine-tuning metal-oxide catalysts enhances energy storage
Chemical reactions that release oxygen in the presence of a catalyst, known as oxygen-evolution reactions, are a crucial part of chemical energy storage processes, including water splitting, electrochemical carbon dioxide reduction, and ammonia production. The kinetics of this type of reaction are generally slow, but compounds called metal oxides can have catalytic activities that vary over several orders of magnitude, with some exhibiting the hi...
Hydrogen fuel project promises ultra-clean air in China
A UK company has been selected to lead a collaborative project that promises to result in significant carbon reduction and ultra-low air quality emissions for thousands of vehicles in China within the next 10 years. Liverpool based ULEMCo has received grant funding via Innovate UK from the cross Government Newton Fund. The Fund uses science and innovation partnerships to promote the economic development and welfare of countries overseas.