Archive for the ‘energy’ category: Page 8

Nov 28, 2023

Durable, inexpensive electrocatalyst generates clean hydrogen and oxygen from water

Posted by in categories: chemistry, energy, sustainability

A new electrocatalyst made of nickel (Ni), iron (Fe) and silicon (Si) that decreases the amount of energy required to synthesize H2 from water has been manufactured in a simple and cost-effective way, increasing the practicality of H2 as a clean and renewable energy of the future.

Hydrogen is a highly combustible gas that can help the world achieve its clean energy goals if manufactured in an environmentally responsible way. The primary hurdle to creating hydrogen gas from water is the large amount of energy required for the electrolysis of water, or splitting into hydrogen gas (H2) and oxygen (O2).

Most H2 produced today is derived from fossil fuels, which contributes to global warming. Manufacturing H2 from water through the (HER) requires the use of a catalyst, or agent that lowers the amount of energy required for a chemical reaction. Until recently, these catalysts were made up of , like platinum, reducing the cost-efficiency and practicality of clean hydrogen production.

Nov 27, 2023

India’s EMotorad rides high with $20M investment for global e-bike push

Posted by in categories: energy, transportation

EMotorad, an Indian startup manufacturing electric bikes, raised $20 million in a Series B round as it aims to disrupt China’s market domination and expand its presence in global markets.

The three-year-old startup has raised more than $22.5 million in total funding, with Singapore’s Panthera Growth Partners leading the latest round, along with participation from Alteria Capital, xto10x Technologies, and Green Frontier Capital — the startup’s existing investor. Additionally, the fresh funding round includes a debt of $2.5 million.

The demand for e-bikes is growing in markets beyond China and India as people seek to reduce their reliance on fossil fuels, ease traffic congestion on the roads and find alternative transportation options that do not require rigorous physical activity throughout their daily commute. In 2021, the World Bank predicted (PDF) that as many as 300 million e-bikes will circulate in cities across the globe by 2023. However, despite growing demand worldwide, e-bike supplies rely heavily on Chinese manufacturers. EMotorad is striving to overturn this trend by establishing its manufacturing operations in India.

Nov 25, 2023

A new approach to create fast-charging lithium-ion batteries with a graphite-based anode

Posted by in categories: energy, sustainability, transportation

In recent years, engineers and material scientists have been trying to create increasingly advanced battery technologies that are charged faster, last longer, and can store more energy. These batteries will ultimately play a crucial role in the advancement of the electronics and energy sector, powering the wide range of portable devices on the market, as well as electric vehicles.

Lithium-ion batteries (LiBs) are currently the most widespread batteries worldwide, powering most electronics we use every day. Identifying scalable methods to increase the speed at which these batteries charge is thus one of the primary goals in the energy field, as it would not require switching to entirely new battery compositions.

Researchers at Huazhong University of Technology in China recently introduced a new strategy to develop fast-charging LiBs containing a graphite-based material. Their proposed battery design, outlined in a paper published in Nature Energy, was found to successfully speed up the charging time of LiBs, while also allowing them to retain much of their capacity even after they are charged thousands of times.

Nov 25, 2023

Chinese firm installs world’s biggest wind turbine in ‘record’ 24 hours

Posted by in categories: energy, food, sustainability

Faster installations could reduce construction costs as well as bring farms online faster, both big wins for the wind industry.


Wind turbines are critical tools in our drive to generate electricity using renewable energy sources. The advent of offshore installations has ushered in the possibility of building larger turbines that can harness greater energy in a single sweep.

Continue reading “Chinese firm installs world’s biggest wind turbine in ‘record’ 24 hours” »

Nov 24, 2023

Breaking the stillness: Scientists observe and explain the oscillations of circular hydraulic jumps

Posted by in category: energy

In a new study published in Physical Review Letters, scientists explore how small water jets can create stable periodic oscillations on a solid disk, uncovering a connection between these movements and the waves they generate and providing insights into the dynamic interplay of fluid behavior.

A hydraulic jump is a phenomenon that occurs when a fast-flowing liquid abruptly encounters a slower-flowing or stagnant region. This sudden transition results in a change in the flow’s characteristics, causing the formation of a visible jump or surge in the liquid’s height.

In this process, the kinetic energy of the fast-flowing liquid is converted into , leading to changes in velocity and flow depth. This phenomenon is commonly observed in various settings, such as when a liquid jet impacts a surface, for example in rivers or downstream from dams.

Nov 24, 2023

Harnessing the Sea’s Hidden Energy: New Nano-Device Turns Seawater Into Electricity

Posted by in categories: energy, nanotechnology

The world’s coastlines harbor a largely untapped energy source: the salinity difference between seawater and freshwater. A new nanodevice can harness this difference to generate power.

A team of researchers at the University of Illinois Urbana-Champaign has reported a design for a nanofluidic device capable of converting ionic flow into usable electric power in the journal Nano Energy. The team believes that their device could be used to extract power from the natural ionic flows at seawater-freshwater boundaries.

Nov 24, 2023

Tesla Lathrop Megafactory spotted with 332 Megapack batteries

Posted by in categories: drones, energy, food, sustainability

The fourth quarter is past its midway point, and Tesla’s Megafactory in Lathrop, California, seems like it’s still going full speed ahead. During a recent drone flyover of the site, a fleet of 332 Megapack batteries was spotted in the facility’s staging areas.

The Tesla Megapack may not be as visually compelling as the Cybertruck or the Model 3 Highland, but it is a key product in Tesla’s portfolio. Designed for grid use, the Megapack has the potential to disrupt the energy sector. The battery has been performing well so far, as it has been deployed successfully in high-profile projects like the 182 MW/730 MWh battery farm in Moss Landing, California, and the 150 MW/300 MWh system in New South Wales, Australia.

The Megapack is available in two variants: a 2-hour version that offers 1.9 MW of power and 3.9 MWh of energy and a 4-hour variant that features 1 MW of power and 3.9 MWh of energy. The grid-scale battery is priced at $1,908,590 for the four-hour variant with installation and $2,123,590 for the two-hour variant with installation. Without installation charges, the Megapack is priced at $1,321,390 for the two-hour variant and $1,270,310 for the four-hour version.

Nov 24, 2023

Tesla Megapack battery farm in Queensland connected to the grid: report

Posted by in categories: energy, food, sustainability

The 100MW/200MWh Chinchilla battery in Queensland, Australia, has been registered and connected to the grid. Expectations are high that the massive battery farm’s commissioning will begin soon.

The Chinchilla battery features 80 Tesla Megapack batteries. It is also the first battery farm that will be built by state-owned generator CS Energy, as noted in a Renew Economy report. The facility was committed as part of the state’s response to an explosion at the Callide coal-fired generator — an incident that helped convince the state to accelerate its adoption of sustainable solutions.

The 80 Tesla Megapack batteries are situated next to the Kogan Creek coal-fired generator, which also happens to be owned by CS Energy. The 750MW Kogan Creek coal-fired generator is among the largest coal-fired facilities in Australia. As per local reports, CS Energy is looking to develop a clean energy hub around Kogan Creek, so the Tesla Megapack farm could be considered part of the state-owned generator’s initiatives in the area.

Nov 23, 2023

Micromotors can generate green energy from wastewater

Posted by in categories: chemistry, energy, sustainability

To enhance their catalytic efficiency in degrading organic pollutants, such as RB and urea, researchers further functionalized the surface of the micromotors with laccase, the bio-catalytic counterpart, for the generation of ammonia from urea. Urea is an emerging contaminant, being a common pollutant from residential activities (urea is the main component of urine) and from different industrial processes.

The chemical component laccase accelerates the conversion of urea into ammonia upon contact with contaminated water. This ammonia can be transformed into hydrogen, which is a clean and sustainable energy source.

“This is an interesting discovery. Today, water treatment plants have trouble breaking down all the urea, which can result in eutrophication when the water is released. This is a serious problem in urban areas in particular,” says Rebeca Ferrer, a PhD student from Dr. Katherine Villa’s group at ICIQ.

Nov 23, 2023

Researchers devised worlds’ most efficient thermoelectric harvester

Posted by in categories: energy, materials

Researchers innovated a stretchable thermoelectric generator with a skin-attachable gasket, enhancing energy production through “mechanical metamaterials.”

National research council of science and technology.

This breakthrough has the potential to revolutionize the area of energy generation by leveraging the power of “mechanical metamaterials.”

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