Archive for the ‘energy’ category

Apr 17, 2024

Nissan unveils solid state battery line that will double energy intensity at lower price

Posted by in category: energy

Nissan says solid state batteries will double intensity of lithium batteries and cost less, and can also be used as energy storage.

Apr 17, 2024

Powering the future: Advanced Energy Harvesting for loT Devices

Posted by in categories: energy, engineering, internet

Researchers have developed a high-performance energy management unit (EMU) that significantly boosts the efficiency of electrostatic generators for Internet of Things (IoT) applications. This breakthrough addresses the challenge of high impedance mismatch between electrostatic generators and electronic devices, unlocking new possibilities for ambient energy harvesting.

Electrostatic generators have emerged as a promising solution for powering low-power devices in Internet of Things (IoT) networks, utilizing energy from environmental sources such as wind and human motion. Despite their potential, the effectiveness of these generators has been hampered by an impedance mismatch when connected to electronic devices, leading to low energy utilization efficiency.

A study published in the journal Microsystems & Nanoengineering introduces an efficient energy management unit (EMU) designed to significantly boost the power efficiency of electrostatic generators for IoT devices. This innovation addresses the longstanding challenge of impedance mismatch and propels forward the potential for using environmental energy harvesting within the IoT domain.

Apr 16, 2024

Scientists make breakthrough with advanced technology generating water from thin air — and it could save millions of lives

Posted by in categories: energy, physics, sustainability

I found this on NewsBreak.

Researchers in China have reportedly developed a new technology similar to hydropanels for harvesting water out of thin air that is powered by energy from the sun. The device could be especially useful in dry, arid areas where water — but not sunlight — is hard to come by.

Continue reading “Scientists make breakthrough with advanced technology generating water from thin air — and it could save millions of lives” »

Apr 16, 2024

Study uses thermodynamics to describe expansion of the universe

Posted by in categories: energy, space

Quaise Energy, a Massachusetts Institute of Technology spin-off, plans to vaporize rocks in the Earth’s core and tap into deep geothermal energy.

Apr 16, 2024

California exceeds 100% of energy demand with renewables over a record 30 days

Posted by in categories: energy, engineering

In a major clean energy benchmark, wind, solar, and hydro exceeded 100% of demand on California’s main grid for 30 of the past 38 days.

Stanford University professor of civil and environmental engineering Mark Z. Jacobson has been tracking California’s renewables performance, and he shares his findings on Twitter (X) when the state breaks records. Yesterday he posted:

Jacobson notes that supply exceeds demand for “0.25−6 h per day,” and that’s an important fact. The continuity lies not in renewables running the grid for the entire day but in the fact that it’s happening on a consistent daily basis, which has never been achieved before.

Apr 14, 2024

Semiconductor quantum dots: Technological progress and future challenges

Posted by in categories: chemistry, energy, quantum physics

Quantum #dots feature widely tunable and distinctive optical, electrical, chemical, and physical properties. They span energy #harvesting, #ILLUMINATION, #displays, #cameras, and more.

Read more on #WorldQuantumDay: #Sciencereview.

Semiconductor quantum dots: Technological progress and future challenges.

Apr 13, 2024

Giant battery to be installed underground as deep as Empire State Building is tall: ‘It’s a massive amount of storage’

Posted by in categories: energy, sustainability

A small town in central Utah is set to be the home of a new underground “battery” that will store hydrogen as a clean energy source.

According to The New York Times, developers are creating two caverns as deep as the Empire State Building is tall from a geological salt formation near Delta, Utah. These caverns, which are expected to be complete next year, will be able to store hydrogen gas.

Continue reading “Giant battery to be installed underground as deep as Empire State Building is tall: ‘It’s a massive amount of storage’” »

Apr 13, 2024

New tidal stellar stream discovered with Gaia

Posted by in categories: energy, space

By analyzing the data from ESA’s Gaia satellite, Chinese astronomers have detected a new tidal stellar stream in the northern hemisphere, which has a low metallicity and a relatively high energy. The finding was reported in a research paper published April 1 in The Astrophysical Journal.

Apr 13, 2024

Quantum Control Unlocked: Creating Resistance-Free Electron Channels

Posted by in categories: energy, quantum physics

Unveiling Chiral Interface States

The chiral interface state is a conducting channel that allows electrons to travel in only one direction, preventing them from being scattered backward and causing energy-wasting electrical resistance. Researchers are working to better understand the properties of chiral interface states in real materials but visualizing their spatial characteristics has proved to be exceptionally difficult.

But now, for the first time, atomic-resolution images captured by a research team at Berkeley Lab and UC Berkeley have directly visualized a chiral interface state. The researchers also demonstrated on-demand creation of these resistance-free conducting channels in a 2D insulator.

Apr 13, 2024

Researchers Develop Simple Way To Harvest More “Blue Energy” From Waves

Posted by in categories: energy, nanotechnology

As any surfer will tell you, waves pack a powerful punch. We’re now making strides toward harnessing the ocean’s relentless movements for energy, thanks to advancements in “blue energy” technology. In a study published in ACS Energy Letters, researchers discovered that by moving the electrode from the middle to the end of a liquid-filled tube—where the water’s impact is strongest—they significantly boosted the efficiency of wave energy collection.

The tube-shaped wave-energy harvesting device improved upon by the researchers is called a liquid-solid triboelectric nanogenerator (TENG). The TENG converts mechanical energy into electricity as water sloshes back and forth against the inside of the tube. One reason these devices aren’t yet practical for large-scale applications is their low energy output. Guozhang Dai, Kai Yin, Junliang Yan, and colleagues aimed to increase a liquid-solid TENG’s energy harvesting ability by optimizing the location of the energy-collecting electrode.

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