Energy & Green Tech news

Energy & Green Tech

Researchers develop sodium battery capable of rapid charging in just a few seconds

Sodium (Na), which is over 500 times more abundant than lithium (Li), has recently garnered significant attention for its potential in sodium-ion battery technologies. However, existing sodium-ion batteries face fundamental ...

Engineering

Greater access to clean water, thanks to a better membrane

Water scarcity around the world is a bigger problem than ever, and desalination is critical to solving it. The best available technologies for separating salt from seawater, though, are costly and require a great deal of ...

Business

South Africa's electricity crisis: A series of failures over 30 years have left a dim legacy

In 1994, apartheid ended and the African National Congress (ANC) won South Africa's first ever democratic elections, promising "Electricity for All" as part of its Reconstruction and Development Program.

Business

Study unlocks opportunities to bridge the US wind energy workforce gap

U.S. land-based and offshore wind energy markets are expected to grow significantly over the next few decades. With this growth, the demand for properly trained wind energy workers will also increase to meet national deployment ...

Engineering

Houses made of waste changing lives in South America

Homes made of discarded plastic bottles, construction waste and old tires are being built across Latin America as new technologies help turn municipal waste into sustainable bricks and tiles.

Engineering

Floating solar's potential to support sustainable development

A study, published in Nature Energy, is among the first to explore the floating photovoltaics (FPV) at the continental scale, finding that FPV installed at existing major reservoirs could produce 20–100% of the electricity ...

Electronics & Semiconductors

Harvesting vibrational energy from 'colored noise'

The energy demands of today's ubiquitous small electronic devices—including sensors, data transmitters, medical implants and 'wearable' consumer products such as Fitbits—can no longer be met by chemical batteries alone. ...

Electronics & Semiconductors

New understanding of energy losses in emerging light source

The light-emitting electrochemical cell (LEC) can be fabricated in a sustainable and cost-effective way on both rigid and flexible surfaces making it suitable for a broad range of applications, like illumination, health care, ...

Engineering

This device gathers, stores electricity in remote settings

Today wirelessly connected devices are performing an expanding array of applications, such as monitoring the condition of engines and machinery and remote sensing in agricultural settings. Systems known as the "Internet of ...

Engineering

Team explores the subterranean storage of hydrogen

Imagine a vast volume of porous sandstone reservoir, once full of oil and natural gas, now full of a different carbon-free fuel—hydrogen. Scientists at Sandia National Laboratories are using computer simulations and laboratory ...

Business

How vulnerable are European countries to changes in gas prices?

On 24 February 2022, the Russian army entered Ukraine, escalating a conflict that had begun almost a decade earlier. On the same day, the European Council held an urgent meeting to respond to the aggression and to study emergency ...

Engineering

Why batteries come in so many sizes and shapes

If you've looked in your utility drawer lately, you may have noticed the various shapes, sizes and types of batteries that power your electronic devices. First, there are the round, non-rechargeable button cells for your ...