Energy & Green Tech news

Energy & Green Tech

In Texas, a rancher swaps his oil pumps for wind turbines

Cattle rancher Bobby Helmers cranes to listen as the blades of his six giant wind turbines slice through the air in the same Texas fields that once echoed with the sounds of oil pumps.

Energy & Green Tech

Mapping performance variations to see how lithium-metal batteries fail

Scientists have identified the primary cause of failure in a state-of-the-art lithium-metal battery, of interest for long-range electric vehicles. Using high-energy X-rays, they followed the cycling-induced changes at thousands ...

Electronics & Semiconductors

Researchers develop power converter for long-distance, underwater electric grids

A team of researchers from Utah State University's Power Electronics Lab have developed a DC current-to-DC voltage power converter. This converter is equipped for long distances and minimal maintenance, making it particularly ...

Energy & Green Tech

Researchers creating a safer, cleaner way to recover rare-earth metals from old phones and laptops

Rare-earth metals are critical to the high-tech society we live in as an essential component of mobile phones, computers and many other everyday devices. But increasing demand and limited global supply means we must urgently ...

Engineering

How to create better cities when the pandemic is over

Throughout the past year of working from home, I have gone for numerous morning, lunchtime and evening walks around my neighborhood in the Eastern parts of Lund in Sweden. My neighborhood has three dams for storing stormwater ...

Engineering

Novel use of 3D geoinformation to identify urban farming sites

Urban farming has picked up in scale and sophistication globally in recent years. Several innovative urban farming approaches have been introduced in Singapore, such as rooftop farming, optimisation of land use, the introduction ...

Energy & Green Tech

To cool tomorrow's buildings, power sector must grow

Temperatures are rising. Eight of the warmest 10 recorded years of globally averaged temperature have occurred after 1998. Coupled with that increase is a growing demand for electricity to cool buildings. A new study published ...

Energy & Green Tech

Experts' predictions for future wind energy costs drop significantly

Technology and commercial advancements are expected to continue to drive down the cost of wind energy, according to a survey led by Lawrence Berkeley National Laboratory (Berkeley Lab) of the world's foremost wind power experts. ...

Energy & Green Tech

Discount on charging electric cars helps to solve traffic jams

Charging electric cars can put a strain on the electricity grid. And commuting to work by car can cause traffic congestion. Ph.D. student Carlo Cenedese at the University of Groningen, the Netherlands, linked energy use and ...

Energy & Green Tech

EU lacking sufficient electric cars charging infrastructure

In line with its ambition to make Europe a greener place, the European Union wants to drastically reduce gas emission from transport by 2050 and promote electric cars. But according to a report from the bloc's external auditor, ...

Energy & Green Tech

French rail company orders 12 hydrogen trains

French national railway SNCF said Thursday it has ordered 12 hydrogen-powered trains to begin tests in four regions in 2023 as it eyes a zero-emissions future with the nascent technology.

Energy & Green Tech

Offshore wind data release propels wind prospecting

At first glance, today's wind resource assessors and mining prospectors of the past seem quite different. Look closer and you will find some striking similarities. Notably, a willingness to sift through volumes of information ...

Energy & Green Tech

Biofuels producers, farmers not sold on switch to electric

The president and auto industry maintain the nation is on the cusp of a gigantic shift to electric vehicles and away from liquid-fueled cars, but biofuels producers and some of their supporters in Congress aren't buying it. ...

Business

Retaining knowledge of nuclear waste management

Have you ever started a new job and spent a lot of time figuring out everything from how to get paper for the printer to whether an important customer prefers quick phone calls to emails?

Energy & Green Tech

China's bitcoin mining rush risks derailing climate goals

China's electricity-hungry bitcoin mines that power nearly 80 percent of the global trade in cryptocurrencies risk undercutting the country's climate goals, a study in the journal Nature Communications said on Tuesday.

Energy & Green Tech

Aluminum-anode batteries offer sustainable alternative

The cost of harvesting solar energy has dropped so much in recent years that it's giving traditional energy sources a run for their money. However, the challenges of energy storage—which require the capacity to bank an ...

Energy & Green Tech

Recycling – A batteries passport

Scientists at Oak Ridge National Laboratory have devised a method to identify the unique chemical makeup of every lithium-ion battery around the world, information that could accelerate recycling, recover critical materials ...

Energy & Green Tech

Diversity can prevent failures in large power grids

The recent power outages in Texas brought attention to its power grid being separated from the rest of the country. While it is not immediately clear whether integration with other parts of the national grid would have completely ...

Engineering

Scientists studying solar try solving a dusty problem

The layer of dust and pollen that settles on the windshield of your car is easily removed with a turn of the lever that activates wipers and water. Removing that layer from a solar panel—especially one inconveniently located ...

Energy & Green Tech

Biden aims to juice EV sales, but would his plan work?

Dangling tax credits and rebates in his drive to fight climate change, President Joe Biden wants you to trade your gas-burning car, truck or SUV for a zero-emissions electric vehicle.