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Archive for the ‘sustainability’ category: Page 391

Sep 7, 2020

Tesla Model 3 owner reaches Mt. Everest’s base camp with zero range anxiety

Posted by in categories: sustainability, transportation

A Tesla Model 3 from China has recently gone where no other Model 3 has gone before. In an epic 5,500 km (3,400-mile) road trip, a white Tesla Model 3 Dual Motor AWD started a long journey from Shenzhen all the way to the base camp of Mt. Everest. What’s more remarkable was that over the long trip, the Tesla owner remarked that he experienced no range anxiety at all, despite his extremely remote destination.

Driving to the base camp of Mt. Everest is no joke, and it is hardly something that is considered relaxing and convenient. Needless to say, any trip that involves one of the highest and most dangerous mountains in the world is not something that is taken lightly. Some who drive to Everest’s base camp even utilize support vehicles just to be on the safe side. The Model 3 owner, for his part, took on the journey alone.

Sep 6, 2020

Japan’s Science Missteps Risk Major Diplomatic Incident In Mauritius Over Wakashio Oil Spill

Posted by in categories: science, sustainability

As Japanese scientists try to claim no Wakashio oil in Mauritian waters despite images, Mauritius sign a major trade deal with China amid growing frustration with Japan. What started as a shipping incident is fast turning into a major diplomatic crisis for Japan.

Sep 6, 2020

Lighting the way for new solar fuels science

Posted by in categories: science, solar power, sustainability

Yale chemists are pushing forward with innovative work to develop tomorrow’s liquid fuels from sunlight.

A quintet of Yale researchers — Sharon Hammes-Schiffer, Nilay Hazari, Patrick Holland, James Mayer, and Hailiang Wang — are among the principal investigators (PI) for the U.S. Department of Energy’s $40 million Center for Hybrid Approaches in Solar Energy to Liquid Fuels (CHASE).

CHASE, which involves six scientific institutions, will be based at the University of North Carolina-Chapel Hill. Yale’s portion of the funding is $6.27 million over five years, and will support dozens of graduate student and postdoctoral co-workers on Science Hill and in the Energy Sciences Institute at West Campus.

Sep 6, 2020

California ISO Declares Stage 2 Emergency, Warns of Rotating Blackouts

Posted by in categories: solar power, sustainability

California’s Independent System Operator declared a Stage 2 emergency Saturday, warning residents to expect rotating blackouts and advising them to conserve energy.

Stage 2 means, “The ISO has taken all mitigating action and is no longer able to provide its expected energy requirements.”

The declaration was due to high heat and increased demand, according to CAISO. In addition, CAISO said fires caused a generator and a solar farm to trip offline, highlighting the need for residents to reduce energy use.

Sep 4, 2020

Correcting anode-free cell failure to enable higher-energy-density batteries

Posted by in categories: chemistry, energy, sustainability, transportation

Batteries with high energy densities could enable the creation of a wider range of electric vehicles, including flying vehicles that can transport humans in urban environments. Past studies predict that to support the operation of vehicles capable of take-off and landing, batteries require energy densities of approximately 400 Wh kg-1 at the cell level, which is approximately 30% higher than the energy density of most existing lithium-ion (Li-ion) cells.

In addition to powering flying vehicles, high-energy (i.e., single units within a battery that convert chemical into ) could increase the distance that electric cars can travel before they need to be charged again. They may also reduce overall fabrication costs for electric vehicles, as similar results could be achieved using fewer but better-performing cells.

Anode-free lithium metal cells are particularly promising for creating batteries with higher energy densities. While they use the same cathode as Li-ion cells, these cells store energy via an electroplated lithium metal instead of a graphite host, and they can have energy densities that are 60% greater than those of Li-ion cells.

Sep 4, 2020

Decades-old mystery of lithium-ion battery storage solved

Posted by in categories: chemistry, mobile phones, sustainability, transportation

For years, researchers have aimed to learn more about a group of metal oxides that show promise as key materials for the next generation of lithium-ion batteries because of their mysterious ability to store significantly more energy than should be possible. An international research team, co-led by The University of Texas at Austin, has cracked the code of this scientific anomaly, knocking down a barrier to building ultra-fast battery energy storage systems.

The team found that these possess unique ways to store energy beyond classic electrochemical mechanisms. The research, published in Nature Materials, found several types of compounds with up to three times the energy storage capability compared with materials common in today’s commercially available lithium-ion batteries.

By decoding this mystery, the researchers are helping unlock batteries with greater energy capacity. That could mean smaller, more powerful batteries able to rapidly deliver charges for everything from smartphones to electric vehicles.

Sep 4, 2020

New understanding of electrolyte additives will improve dye-sensitised solar cells

Posted by in categories: computing, mobile phones, solar power, sustainability

Dye-sensitized solar cells used in low-light conditions could perform more consistently thanks to improved understanding of the role additives play in optimizing electrolytes.

Laptops and mobile phones, among other devices, could be charged or powered indoors, away from direct sunlight, using dye-sensitized solar (DSCs), which have achieved efficiencies of up to 34% at 1000 lux from a fluorescent lamp.

Copper-based electrolytes containing various combinations of additives have been used to achieve these efficiencies, with varying results to date.

Sep 4, 2020

Farming Metal From Plants Could Be the Future of Sustainable Tech

Posted by in categories: food, sustainability

These plants have evolved to absorb metal from the soil via Seeker.

Sep 3, 2020

Fog catching nets could help solve the world’s water crisis

Posted by in category: sustainability

These fog catching nets could be the answer to the world’s water crisis.

Sep 3, 2020

Jeep reveals hybrid Wrangler, 1st US battery-powered vehicle

Posted by in categories: economics, sustainability, transportation

The company rolled out the first of them for the U.S. on Thursday, a plug-in rechargeable Wrangler to go on sale in America, Europe and China early next year.

The Wrangler 4xe can go 25 miles (40 kilometers) on electricity before a 2-liter turbocharged four-cylinder engine takes over. Drivers can choose to have an engine-powered generator recharge the batteries (at a higher fuel consumption rate), although it would take about 2.5 hours at 45 to 55 mph (72.4 to 88.5 kilometers per hour) to fully replenish them.

A big driver of the new offerings is FCA’s obligation to meet fuel economy and pollution regulations in Europe, China, and the U.S. or face stiff fines or steep costs to buy electric vehicle credits from companies like Tesla.