Cheaper solar cells with 20.2 percent efficiency
A solar-panel material that can cut down on photovoltaic costs while achieving competitive power-conversion efficiency of 20.2 percent has been created by researchers.
AENews
- berlin
- chevrolet-volt
- January 2, 2016
- 0 Comments
Top 10 Green Cars – 2015 Vancouver Auto Show
Electric Cars | Fuel Cells | Hydrogen Fuel | TransportationThis Tuesday we had a unique opportunity to preview the Vancouver International Auto Show. This year’s show features a wide variety of electric, hydrogen and hybrid-electric vehicles. We took full advantage and we’re absolutely thrilled to see so many manufacturers putting research and development into clean transportation technologies. Almost every manufacturer had something future-friendly to […]
Stormy weather ahead for wind farms?
Researchers will study the vibrations of wind turbines at a large Chilean wind farm along with health impacts on nearby residents. The goal is to make wind turbines more acceptable. Currently, scientists lack sufficient understanding of wind turbines’ noise and best ways to mitigate the effects, they say.
- Alternative
- Bloom
- January 2, 2016
- 0 Comments
Bloom Box: The Alternative Energy that Terrifies Obama
- berkeley
- brookhaven
- December 30, 2015
- 0 Comments
Technique matters: Different way to make cathodes may mean better batteries
Lithium nickel manganese cobalt oxide, or NMC, is one of the most promising chemistries for better lithium batteries, especially for electric vehicle applications, but scientists have been struggling to get higher capacity out of them. Now researchers have found that using a different method to make the material can offer substantial improvements.
New battery shuts down at high temperatures, restarts when it cools
The first lithium-ion battery has been developed that shuts down before overheating, then restarts immediately when the temperature cools. The new technology could prevent the kind of fires that have prompted recalls and bans on a wide range of battery-powered devices, from computers to hoverboards.
Wireless charging and discharging for electric vehicles
In the future, a wireless charging system will allow electric cars not only to charge their batteries, but also to feed energy back into the power grid, helping to stabilize it. The cost-effective charging system achieves high levels of efficiency across the whole power range, from 400 watts to 3.6 kilowatts, while the car and the charging coil can be up to 20 centimeters apart.
