The next generation of power plants will be virtual

Your next home or electric vehicle could be part of a virtual power plant

Increasing numbers of homes outfitted with solar panels and batteries have the potential to help power entire regions with renewable energy. Working together, homes with solar setups are turning neighborhoods into virtual power plants that can feed power back to the grid and prevent blackouts.

These interconnected solar power systems are popping up across the globe — from apartment complexes in California and Utah, to public housing in South Australia. In the future, virtual power plants might even be made up of fleets of electric vehicles. It’s the next generation of solar power technology.

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Scientists create the world’s first room temperature superconductor

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Superconducting materials typically require extremely cool temperatures to operate, which is demonstrated in this photo. But a new discovery could change that

Since its discovery more than a century ago, superconductivity has come to play a powerful role in many modern day technologies, such as maglev trains and MRI scans, but its utility has been limited by the need for extremely cool operating temperatures. Scientists are now claiming a big breakthrough in this area, creating what they say is the first material capable of superconductivity at room temperature.

The work was led by Ranga Dias at the University of Rochester, and aims to overcome one of the major roadblocks in expanding the uses of superconductive materials. These materials exhibit no electrical resistance and expel a magnetic field, but because they typically only function at temperatures below -140 °C (-220 °F), they require expensive equipment to maintain.

“Because of the limits of low temperature, materials with such extraordinary properties have not quite transformed the world in the way that many might have imagined,” says Dias. “However, our discovery will break down these barriers and open the door to many potential applications.”

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Hyundai delivers first fuel cell trucks to Switzerland

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LUCERNE, Switzerland (Reuters) – South Korean carmaker Hyundai on Wednesday presented the first seven hydrogen-powered trucks to customers in Switzerland, out of 50 such vehicles scheduled this year to bring zero-emission commercial vehicles to European roads.

For long haul, proponents say hydrogen-powered trucks have an advantage over electric rivals as they have a greater range and require less charging times but their uptake and mass production has been slow because they are expensive.

However, a McKinsey study in January said that once relative efficiencies of the power sources and lifetime costs of a truck are factored in, green hydrogen could reach cost parity with diesel by 2030.

Hyundai has been partnering with Swiss companies to build a value chain covering the production of green hydrogen from hydropower, hydrogen charging stations and the service and maintenance of the trucks.

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Physicists build circuit that generates clean, limitless power from graphene

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A team of University of Arkansas physicists has successfully developed a circuit capable of capturing graphene’s thermal motion and converting it into an electrical current.

“An energy-harvesting circuit based on graphene could be incorporated into a chip to provide clean, limitless, low-voltage power for small devices or sensors,” said Paul Thibado, professor of physics and lead researcher in the discovery.

The findings, published in the journal Physical Review E, are proof of a theory the physicists developed at the U of A three years ago that freestanding graphene—a single layer of carbon atoms—ripples and buckles in a way that holds promise for energy harvesting.

The idea of harvesting energy from graphene is controversial because it refutes physicist Richard Feynman’s well-known assertion that the thermal motion of atoms, known as Brownian motion, cannot do work. Thibado’s team found that at room temperature the thermal motion of graphene does in fact induce an alternating current (AC) in a circuit, an achievement thought to be impossible.

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IRJ 2020 Innovations Showcase: Siemens and Ballard develop hydrogen trains

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SIEMENS Mobility is currently developing a modular hydrogen fuel cell drive for its Mireo Plus H regional train platform, which will subsequently be integrated into other platforms.

The hydrogen-powered Mireo Plus H trains will be used on existing diesel routes and in regions where hydrogen is cheaply available.

The €12m project, in partnership with Canadian fuel cell producer Ballard Power Systems and the Rhine-Westphalian Technical University in Aachen (RWTH), plans to produce a usable fuel cell drive by 2021, with a planned range of 600km-900km in two or three-car trains.

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Transforming homes into power stations – how Sweden is disrupting energy production

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  • 54% of Sweden’s power comes from renewables and this energy is increasingly local.
  • Smart grids are switching Swedish homes from energy consumers to power-making ‘prosumers.’
  • Local ‘district heating’ plants use excess heat to warm the majority of Swedish homes.
  • Sweden tops the World Economic Forum’s Energy Transitions Index

By 2030, almost a third of all the energy consumed in the European Union must come from renewable sources, according to binding targets agreed in 2018. Sweden is helping lead the way.

As well as targeting 100% renewable electricity production by 2040, the country is transforming homes into highly efficient ‘prosumers’ – buildings which both produce and consume the vast majority of their own energy.

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Nikola Tesla’s vision of wireless power transmission is alive with Kiwi startup Emrod

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Its technology is supposed to be cheaper, safer, and more eco-friendly than wired power

History lesson: In 1890, Nikola Tesla caused a total blackout in the town of Colorado Springs using a 140-foot Tesla coil. Creating a citywide power outage was not his goal. He wanted to power a light bulb that was more than two miles away without using wires. Much to the dismay and anger of residents and the power plant, whose dynamo was burned out, the experiment was claimed to be a success, a claim that later proved to be debatable.

Now more than 100 years later, an energy startup called Emrod wants to bring Tesla’s dream of wireless power transmission to life. The New Zealand company has partnered with one of the country’s primary power distributors to build a wireless electricity infrastructure that it believes can deliver power more efficiently than traditional methods.

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California approves largest ever utility program to expand EV charging

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 A charging station for electric vehicles is pictured in Pasadena, California

California on Thursday approved a $437 million effort to build thousands of electric vehicle chargers, its utility regulator said, calling it the nation’s largest ever utility program to expand charging infrastructure.

The money will go to utility Southern California Edison SCE_pe.A to fund the installation of nearly 40,000 chargers, the California Public Utilities Commission said in a statement.

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New autonomous sustainable robots could mine the deep sea

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Pliant Energy Systems says its C-Ray robot could be used as a less invasive ocean mining tool.

Mining companies are ready to tackle two new frontiers like never before: space and the deep sea.

The deep ocean is a place that’s not only rich in sea life, vast swathes of it are also abundant in metals such as nickel, copper, cobalt, zinc, which are essential to making smartphones, electric vehicles, and solar panel parts.

The problem is that marine scientists and environmentalists strongly oppose the invasive methods proposed by these mining companies as they might irreversibly damage fragile ecosystems. Renewable energy firm Pliant Energy Systems thinks it has the solution to this problem.

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Brain-inspired electronic system could vastly reduce AI’s carbon footprint

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A wafer filled with memristors.

Extremely energy-efficient artificial intelligence is now closer to reality after a study by UCL researchers found a way to improve the accuracy of a brain-inspired computing system.

The system, which uses memristors to create artificial neural networks, is at least 1,000 times more energy efficient than conventional transistor-based AI hardware, but has until now been more prone to error.

Existing AI is extremely energy-intensive—training one AI model can generate 284 tons of carbon dioxide, equivalent to the lifetime emissions of five cars. Replacing the transistors that make up all digital devices with memristors, a novel electronic device first built in 2008, could reduce this to a fraction of a ton of carbon dioxide—equivalent to emissions generated in an afternoon’s drive.

Since memristors are so much more energy-efficient than existing computing systems, they can potentially pack huge amounts of computing power into hand-held devices, removing the need to be connected to the Internet.

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These EV chargers make money for their building-owner hosts

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Los Angeles-based EV charging startup Xeal, which uses predictive AI software to maximize the profits of charging stations, will boost passive income for commercial and residential building owners. It’s just successfully closed its seed investment round.

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Nano-diamond self-charging batteries could disrupt energy as we know it

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NDB makes remarkable claims about its self-charging nano-diamond battery, here seen mocked up as a circuit board component

California company NDB says its nano-diamond batteries will absolutely upend the energy equation, acting like tiny nuclear generators. They will blow any energy density comparison out of the water, lasting anywhere from a decade to 28,000 years without ever needing a charge. They will offer higher power density than lithium-ion. They will be nigh-on indestructible and totally safe in an electric car crash. And in some applications, like electric cars, they stand to be considerably cheaper than current lithium-ion packs despite their huge advantages.

The heart of each cell is a small piece of recycled nuclear waste. NDB uses graphite nuclear reactor parts that have absorbed radiation from nuclear fuel rods and have themselves become radioactive. Untreated, it’s high-grade nuclear waste: dangerous, difficult and expensive to store, with a very long half-life.

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