Current Power Grid News and Events

Current Power Grid News and Events, Power Grid News Articles.
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New material is next step toward stable high-voltage long-life solid-state batteries
A team of researchers designed and manufactured a new sodium-ion conductor for solid-state sodium-ion batteries that is stable when incorporated into higher-voltage oxide cathodes. This new solid electrolyte could dramatically improve the efficiency and lifespan of this class of batteries. A proof of concept battery built with the new material lasted over 1000 cycles while retaining 89.3% of its capacity--a performance unmatched by other solid-state sodium batteries to date. (2021-02-23)

Low-level jets create winds of change for turbines
Global wind power capacity has increased more than fivefold over the past decade, leading to larger turbines, but low-level jets are one cause for concern. The effects of these strong, energetic wind flows depend on how high the wind flows are in relation to the turbines. In the Journal of Renewable and Sustainable Energy, researchers considered three different scenarios in which the LLJs were above, below, and in the middle of the turbine rotors. (2021-02-23)

Credit card-sized soft pumps power wearable artificial muscles
Robotic clothing that is entirely soft and could help people to move more easily is a step closer to reality thanks to the development of a new flexible and lightweight power system for soft robotics. (2021-02-17)

Switching to firm contracts may prevent natural gas fuel shortages at US power plants
New research now indicates that these fuel shortages are not due to failures of pipelines and that in certain areas of the country a change in how gas is purchased can significantly reduce generator outages. The paper, 'What Causes Natural Gas Fuel Shortages at US Power Plants?' by researchers at Carnegie Mellon University and the North American Electric Reliability Corporation, was published in Energy Policy. (2021-02-16)

NREL heats up thermal energy storage with new solution meant to ease grid stress
Scientists from the National Renewable Energy Laboratory (NREL) have developed a simple way to better evaluate the potential of novel materials to store or release heat on demand in your home, office, or other building in a way that more efficiently manages the building's energy use. (2021-02-16)

Electricity source determines benefits of electrifying China's vehicles
Researchers have concluded air quality and public health benefits of EVs -- as well as their ability to reduce carbon emissions -- in China are dependent on the type of transport electrified and the composition of the electric grid. (2021-02-16)

Electric transmission operators could benefit from temperature-dependent resource adequacy modeling
A new paper contributes to these ongoing reliability considerations by using a unique data set to determine how both low and high temperatures reduce the reliability of coal, gas, diesel, hydroelectric, and nuclear power generators and thus affect the amount of generation markets should contract for. The paper, ''Resource Adequacy Implications of Temperature-dependent Electric Generator Availability,'' by researchers at Carnegie Mellon University, was published in Applied Energy. (2021-02-12)

Samara Polytech chemists simplify crystal structures
Samara Polytech scientists have developed new methods of modelling the crystal structure of chemical substances, which makes it possible to obtain additional information about the object under study, unknown in the initial experimental data, and also to find regularities determining its structure and properties. (2021-02-09)

A new modifier increases the efficiency of perovskite solar cells
The research team of NUST MISIS has presented an improved structure of perovskite solar cells. Scientists have modified perovskite-based solar cells using MXenes -- thin two-dimensional titanium carbides with high electrical conductivity. The MXenes-based modified cells showed superior performance, with power conversion efficiency exceeding 19% (the reference demonstrated 17%) and improved stabilized power output with respect to reference devices. The results have been published in the Nano energy international scientific journal. (2021-02-09)

Shining a light on the true value of solar power
Utility companies have worried that solar panels drive up electric costs for the people who don't have panels. Michigan Tech renewable energy researchers show the opposite is actually true -- grid-tied solar photovoltaic (PV) owners are actually subsidizing their non-PV neighbors. (2021-02-09)

Coal and COVID-19: How the pandemic is accelerating the end of fossil power generation
COVID-19 has not only caused a temporary drop in global CO2 emissions, it has also reduced the share of power generated by burning coal - a trend that could in fact outlast the pandemic. This is the key result of a new study by a team of economists based in Potsdam and Berlin that looked at COVID-19's impact on the energy system and demand for electricity. (2021-02-08)

From waste heat to electrical power: A new generation of thermomagnetic generators
Use of waste heat contributes largely to sustainable energy supply. Scientists of Karlsruhe Institute of Technology (KIT) and T?hoku University in Japan have now come much closer to their goal of converting waste heat into electrical power at small temperature differences. As reported in Joule, electrical power per footprint of thermomagnetic generators based on Heusler alloy films has been increased by a factor of 3.4. (DOI: 10.1016/j.joule.2020.10.019) (2021-02-03)

Story tips: COVID breath-sampling, welding advances and powered by water
ORNL story tips: COVID breath-sampling, welding advances and powered by water (2021-02-02)

Addressing power differences may spur advantaged racial groups to act for racial equality
When different groups of people come into contact, what's the key to motivating advantaged racial groups to join historically disadvantaged racial minority groups to strive for racial equality and social justice? It's a complex conundrum studied for years by social scientists like Linda Tropp, professor of social psychology at the University of Massachusetts Amherst. (2021-02-02)

Salt battery design overcomes bump in the road to help electric cars go the extra mile
Using salt as a key ingredient, Chinese and British researchers have designed a new type of rechargeable battery that could accelerate the shift to greener, electric transport on our roads. (2021-02-01)

Breakthrough for laser-induced breakdown spectroscopy
Researchers under the leadership of Heping Zeng at East China Normal University in Shanghai recently demonstrated a novel technique: plasma-grating-induced breakdown spectroscopy (GIBS). (2021-01-28)

Mangroves threatened by plastic pollution from rivers, new study finds
Mangrove ecosystems are at particular risk of being polluted by plastic carried from rivers to the sea. Fifty-four per cent of mangrove habitat is within 20 km of a river that discharges more than a tonne of plastic waste a year into the ocean, according to a new paper published in the journal Science of the Total Environment. Mangroves in southeast Asia are especially threatened by river-borne plastic pollution, the researchers found. (2021-01-26)

Elusive 19th century Alaskan fort located using radar tech
Researchers from Cornell University and the National Park Service have pinpointed and confirmed the location of the remnants of a wooden fort in Alaska - the Tlingit people's last physical bulwark against Russian colonization forces in 1804 - by using geophysical imaging techniques and ground-penetrating radar. (2021-01-25)

Highly efficient grid-scale electricity storage at fifth of cost
Researchers in WMG at the University of Warwick, in collaboration with Imperial College London, have found a way to enhance hybrid flow batteries and their commercial use. The new approach can store electricity in these batteries for very long durations for about a fifth the price of current technologies, with minimal location restraints and zero emissions. (2021-01-22)

Electron transfer discovery is a step toward viable grid-scale batteries
The way to boost electron transfer in grid-scale batteries is different than researchers had believed, a new study from the University of Michigan has shown. (2021-01-21)

An anode-free zinc battery that could someday store renewable energy
Renewable energy sources, such as wind and solar power, could help decrease the world's reliance on fossil fuels. But first, power companies need a safe, cost-effective way to store the energy for later use. Massive lithium-ion batteries can do the job, but they suffer from safety issues and limited lithium availability. Now, researchers reporting in ACS' Nano Letters have made a prototype of an anode-free, zinc-based battery that uses low-cost, naturally abundant materials. (2021-01-20)

Two-photon polymerization of PEGda hydrogel microstructure with low threshold power with green laser
The fabrication of shape-memory hydrogel scaffolds not only requires biocompatibility, micrometre resolution, high mechanical strength, but also requires a low polymerisation threshold in high-water content environment to incorporate microstructures with biological tissues. Towards this goal, scientists from China and australite developed a new hydrogel formula that full fills this goal and demonstrated water-responsive structures with a shape-memory effect at a micrometre scale. This work is of importance for the development future reversible microdevices in biomedical engineering. (2021-01-20)

Could "Power Walking" fuel the energy revolution? India is ready to step up
India has an energy problem. It currently relies heavily on coal and consumer demand is expected to double by 2040, making its green energy targets look out of reach. Part of the solution could come from harvesting energy from footsteps, say Hari Anand and Binod Kumar Singh from the University of Petroleum and Energy Studies in Dehradun, India. Their new study, published in the De Gruyter journal Energy Harvesting and Systems, shows that Indian attitudes towards power generated through piezoelectric tiles are overwhelmingly positive. (2021-01-19)

CMOS-compatible 3D ferroelectric memory with ultralow power and high speed
POSTECH Professor Jang-Sik Lee's research team develops ferroelectric NAND flash memory. (2021-01-18)

Seawater as an electrical cable !? Wireless power transfers in the ocean
Toyohashi University of Technology research team has successfully transferred power and data wirelessly through seawater by using a power transmitter/receiver with four layers of ultra-thin, flat electrodes. Until now, it had been thought that wireless power transfers could only be achieved through magnetic coupling. This time, with a focus on the high-frequency properties of seawater, a third method for conductive coupling was devised, and a power transmitter/receiver was developed to achieve highly-efficient power transfers. (2021-01-13)

The changing paradigm of next-generation semiconductor memory development
The Korea Institute of Science and Technology(KIST) has announced that the research team led by Dr. Kim Kyoung-Whan at the Center for Spintronics has proposed a new principle about spin memory devices, which are next-generation memory devices. This breakthrough presents new applicability that is different from the existing paradigm. (2021-01-12)

UVA-led team expands power grid planning to improve system resilience
Researchers' paper in Nature Energy demonstrates that modernizing power grids and using renewable energy will be cheaper than repairing hurricane damage. (2021-01-11)

Towards Exawatt-class lasers
Researchers from Osaka University propose a concept for next-generation ultra-intense lasers, possibly increasing the current record from 10 Petawatts to 500 Petawatts. (2021-01-11)

Positive 'tipping points' offer hope for climate
Positive 'tipping points' could spark cascading changes that accelerate action on climate change, experts say. (2021-01-10)

Power, water and climate
As the planet continues to warm, the twin challenges of diminishing water supply and growing energy demand will intensify. But water and energy are inextricably linked. For instance, nearly a fifth of California's energy goes toward water-related activities, while more than a tenth of the state's electricity comes from hydropower. As society tries to adapt to one challenge, it needs to ensure it doesn't worsen the other. (2021-01-07)

It's getting hot in here: Warming world will fry power plant production in coming years
During the year's hottest months, many people rely on electricity-generated cooling systems to remain comfortable. But the power plants that keep air conditioners pushing out cold air could soon be in a vicious cycle in a warming world-not able to keep up with growing demands on hotter days and driving up greenhouse gas emissions to dangerous levels. (2021-01-06)

Largest study of Asia's rivers unearths 800 years of paleoclimate patterns
The SUTD study will be crucial for assessing future climatic changes and making more informed water management decisions. (2020-12-30)

Cornell University to extract energy from manure to meet peak heating demands
Cornell University is developing a system to extract energy from cattle manure to meet the campus's peak demands for heat in the winter months. In the Journal of Renewable and Sustainable Energy, scientists involved with the project give a detailed analysis of the issues required to make this work, including scientific, economic, and energy policy considerations. (2020-12-22)

Waste to treasure: Crayfish shells to store energy
Other than a spicy night snack, the crayfish has been endowed with greater significance. Prof. ZHU Xifeng's team from University of Science and Technology of China made it possible to use crayfish shell as the biological template for high-performance supercapacitors. (2020-12-21)

Electron-producing microbes power sustainable wastewater treatment
WSU researchers have developed a sustainable wastewater treatment system that relies on electron-producing microbial communities to clean the water. The work could someday lead to reduced reliance on the energy-intensive processes that are used to move and treat wastewater, which accounts for as much as two percent of the total electrical energy consumption in the United States. (2020-12-17)

JILA's bigger and better 'tweezer clock' is super stable
JILA physicists have boosted the signal power of their atomic 'tweezer clock' and measured its performance in part for the first time, demonstrating high stability close to the best of the latest generation of atomic clocks. (2020-12-16)

Carbon capture's next top model
Creating accurate, detailed models is key to scaling up carbon capture technology. A recent paper led by the University of Pittsburgh Swanson School of Engineering examines and compares the various modeling approaches for hollow fiber membrane contactors (HFMCs), a type of carbon capture technology. The group analyzed over 150 cited studies of multiple modeling approaches to help researchers choose the technique best suited to their research. (2020-12-16)

Moffitt identifies genomic and immune indicators that predict lethal outcomes in prostate cancer
Moffitt Cancer Center researchers conducted studies to determine if genomic heterogeneity in tumors from grade 4/5 prostate cancer patients can be exploited to identify patient subsets that are at higher risk for lethal outcomes and that may benefit from targeted treatment strategies. Their results were published in the journal European Urology. (2020-12-15)

Frequency data for stable power supply
In the renewable energies era, grid frequency will be an increasingly important indicator of stability of power supply. Under the direction of the Helmholtz Association, an interdisciplinary research consortium has analyzed frequency fluctuations in twelve synchronous grid areas on three continents. For data recording, scientists of Karlsruhe Institute of Technology (KIT) have developed a portable, GPS-synchronized recorder based on a new measurement technology. First results have now been published in Nature Communications. (DOI: 10.1038/s41467-020-19732-7) (2020-12-14)

Benefits of renewable energy vary from place to place
A new study finds the environmental benefits of renewable power generation vary significantly, depending on the nature of the conventional power generation that the renewable energy is offsetting. The researchers hope the work will help target future renewable energy investments in places where they can do the most good. (2020-12-14)

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