|How 139 countries could be powered by 100 percent wind, water, and solar energy by 2050|
Added: 23.08.2017 12:13 | 0 views | 0 comments
The latest roadmap to a 100 percent renewable energy future outlines infrastructure changes that 139 countries can make to be entirely powered by wind, water, and sunlight by 2050 after electrification of all energy sectors. Such a transition could mean less worldwide energy consumption due to the efficiency of clean, renewable electricity; and a net increase of over 24 million long-term jobs.
|Self-powered paper-based 'SPEDs' may lead to new medical-diagnostic tools|
Added: 22.08.2017 15:36 | 0 views | 0 comments
A new medical-diagnostic device made out of paper detects biomarkers and identifies diseases by performing electrochemical analyses -- powered only by the user's touch -- and reads out the color-coded test results, making it easy for non-experts to understand.
|Stretchable biofuel cells extract energy from sweat to power wearable devices|
Added: 22.08.2017 9:22 | 0 views | 0 comments
A team of engineers has developed stretchable fuel cells that extract energy from sweat and are capable of powering electronics, such as LEDs and Bluetooth radios. The biofuel cells generate 10 times more power per surface area than any existing wearable biofuel cells. The devices could be used to power a range of wearable devices.
|aCar -- the electric 'all-rounder'|
Added: 21.08.2017 11:15 | 0 views | 0 comments
An electric car for Africa, custom-designed for the needs of the population there, that strengthens rural structures and helps drive the economy: scientists have been working intensively towards this goal for four years. The new prototype, the aCar, is designed for passenger and cargo transportation and is also interesting for the European automotive market.
|Smart electrical grids more vulnerable to cyber attacks|
Added: 16.08.2017 10:02 | 0 views | 0 comments
Electricity distribution systems in the USA are gradually being modernized and transposed to smart grids, which make use of two-way communication and computer processing. This is making them increasingly vulnerable to cyber attacks.
|Surprise discovery in the search for energy efficient information storage|
Added: 15.08.2017 13:14 | 0 views | 0 comments
Today almost all information stored on hard disc drives or cloud servers is recorded in magnetic media, because it is non-volatile and cheap. For portable devices such as mobile phones and tablets, other forms of non-magnetic memory are used because the technology based on magnetism is impractical and is not energy efficient.
|Engineers charge ahead on zinc-air batteries|
Added: 15.08.2017 9:51 | 0 views | 0 comments
Researchers have found a solution for one of the biggest stumbling blocks preventing zinc-air batteries from overtaking conventional lithium-ion batteries as the power source of choice in electronic devices.
|Single molecules can work as reproducible transistors -- at room temperature|
Added: 14.08.2017 12:09 | 0 views | 0 comments
Researchers have now reproducibly demonstrated current blockade -- the ability to switch a device from the insulating to the conducting state where charge is added and removed one electron at a time -- using atomically precise molecular clusters at room temperature. The study shows that single molecules can function as reproducible circuit elements such as transistors or diodes that can easily operate at room temperature.
|New battery material goes with the flow|
Added: 12.08.2017 16:02 | 3 views | 0 comments
Scientists at the U.S. Department of Energy’s (DOE) Argonne National Laboratory have engineered a new material to be used in redox flow batteries, which are particularly useful for storing electricity for the grid. The material consists of carefully structured molecules designed to be particularly electrochemically stable in order to prevent the battery from losing energy to unwanted reactions.
|New ultrathin semiconductor materials exceed some of silicon's 'secret' powers|
Added: 11.08.2017 14:11 | 0 views | 0 comments
Chip makers appreciate what most consumers never knew: silicon's virtues include the fact that it 'rusts' in a way that insulates its tiny circuitry. Two new ultrathin materials share that trait and outdo silicon in other ways that make them promising materials for electronics of the future.
|Distributed wind power keeps spinning, growing|
Added: 10.08.2017 23:25 | 0 views | 0 comments
America's use of distributed wind -- which is wind power generated near where it will be used -- continues to grow, according to the 2016 Distributed Wind Market Report.
|Annual wind report confirms tech advancements, improved performance, low wind prices|
Added: 10.08.2017 23:25 | 0 views | 0 comments
Wind energy pricing for land-based, utility-scale projects remains attractive to utility and commercial purchasers, according to an annual report released by the US Department of Energy. Prices offered by newly built wind projects in the United States are averaging around 2¢/kWh, driven lower by technology advancements and cost reductions.
|Power-to-liquid: 200 liters of fuel from solar power and the air's carbon dioxide|
Added: 09.08.2017 16:28 | 0 views | 0 comments
Production of fuels from regenerative electric power is a component of the energy turnaround. The first 200 l of synthetic fuel have now been produced from solar energy and the air's carbon dioxide under the SOLETAIR project. The mobile chemical pilot plant that can be used decentrally produces gasoline, diesel, and kerosene from regenerative hydrogen and carbon dioxide.
|Turning homes into power stations could cut household fuel bills by more than 60 percent|
Added: 09.08.2017 7:33 | 0 views | 0 comments
Energy bills could be cut by more than 60 percent -- saving the average household over £600 a year -- if homes were designed to generate, store and release their own solar energy, a report has revealed. The concept has already been proven and is operating successfully on a building in the UK.
|Tiny terahertz laser could be used for imaging, chemical detection|
Added: 08.08.2017 23:26 | 0 views | 0 comments
For more than 20 years, researchers have been working on sources of terahertz radiation that can be etched onto microchips. In a new article, they now describe a novel design that boosts the power output of chip-mounted terahertz lasers by 80 percent.
|New battery is activated by your spit|
Added: 08.08.2017 14:59 | 0 views | 0 comments
Researchers have developed the next step in microbial fuel cells (MFCs): a battery activated by spit that can be used in extreme conditions where normal batteries don't function.
|From greenhouse gas to 3-D surface-microporous graphene|
Added: 07.08.2017 12:20 | 0 views | 0 comments
Tiny dents in the surface of graphene greatly enhances its potential as a supercapacitor. Even better, it can be made from carbon dioxide in a novel approach. The process uses a heat-releasing reaction to dig micropores into 3-D graphene and could be a useful supercapacitor material.
|Real greenhouse gas footprints of reservoirs revealed|
Added: 04.08.2017 8:29 | 0 views | 0 comments
When hydropower reservoirs traps organic matter, it leads to higher local greenhouse gas emissions. But the emissions are not increased but displaced. A new tool calculates the real greenhouse gas footprints of reservoirs.
Added: 04.08.2017 8:22 | 0 views | 0 comments
New carbon dioxide experiments may lead to artificial, renewable fuels, outlines new research. In chemical reactions performed in the lab, a research team has identified a new additive that helps selectively convert carbon dioxide into fuels containing multiple carbon atoms -— a step toward ultimately making renewable liquid fuels that are not derived from coal or oil.
|Electrical grounding technique may improve health outcomes of NICU babies|
Added: 03.08.2017 12:06 | 1 views | 0 comments
A technique called 'electrical grounding' may moderate preterm infants' electromagnetic exposure in the neonatal intensive care unit (NICU) and improve their health outcomes, according to researchers.