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Carbon Nanotube Solvent Electricity enables wire-free electrochemistry as organic solvents like acetonitrile pull electrons, powering alcohol oxidation and packed bed reactors, energy harvesting, and micro- and nanoscale robots via redox-driven current.

Key Points

Solvent-driven electron extraction from carbon nanotube particles generates current for electrochemistry.

✅ 0.7 V per particle via solvent-induced electron flow

✅ Packed bed reactors drive alcohol oxidation without wires

✅ Scalable for micro- and nanoscale robots; energy harvesting

MIT engineers have discovered a new way of generating electricity, alongside advances in renewable power at night that broaden what's possible, using tiny carbon particles that can create a current simply by interacting with liquid surrounding them.

The liquid, an organic solvent, draws electrons out of the particles, generating a current, unlike devices based on a cheap thermoelectric material that rely on heat, that could be used to drive chemical reactions or to power micro- or nanoscale robots, the researchers say.

"This mechanism is new, and this way of generating energy is completely new," says Michael Strano, the Carbon P. Dubbs Professor of Chemical Engineering at MIT. "This technology is intriguing because all you have to do is flow a solvent through a bed of these particles. This allows you to do electrochemistry, but with no wires."

In a new study describing this phenomenon, the researchers showed that they could use this electric current to drive a reaction known as alcohol oxidation—an organic chemical reaction that is important in the chemical industry.

Strano is the senior author of the paper, which appears today in Nature Communications. The lead authors of the study are MIT graduate student Albert Tianxiang Liu and former MIT researcher Yuichiro Kunai. Other authors include former graduate student Anton Cottrill, postdocs Amir Kaplan and Hyunah Kim, graduate student Ge Zhang, and recent MIT graduates Rafid Mollah and Yannick Eatmon.

Unique properties
The new discovery grew out of Strano's research on carbon nanotubes—hollow tubes made of a lattice of carbon atoms, which have unique electrical properties. In 2010, Strano demonstrated, for the first time, that carbon nanotubes can generate "thermopower waves." When a carbon nanotube is coated with layer of fuel, moving pulses of heat, or thermopower waves, travel along the tube, creating an electrical current that exemplifies turning thermal energy into electricity in nanoscale systems.

That work led Strano and his students to uncover a related feature of carbon nanotubes. They found that when part of a nanotube is coated with a Teflon-like polymer, it creates an asymmetry, distinct from conventional thermoelectric materials approaches, that makes it possible for electrons to flow from the coated to the uncoated part of the tube, generating an electrical current. Those electrons can be drawn out by submerging the particles in a solvent that is hungry for electrons.

To harness this special capability, the researchers created electricity-generating particles by grinding up carbon nanotubes and forming them into a sheet of paper-like material. One side of each sheet was coated with a Teflon-like polymer, and the researchers then cut out small particles, which can be any shape or size. For this study, they made particles that were 250 microns by 250 microns.

When these particles are submerged in an organic solvent such as acetonitrile, the solvent adheres to the uncoated surface of the particles and begins pulling electrons out of them.

"The solvent takes electrons away, and the system tries to equilibrate by moving electrons," Strano says. "There's no sophisticated battery chemistry inside. It's just a particle and you put it into solvent and it starts generating an electric field."

Particle power
The current version of the particles can generate about 0.7 volts of electricity per particle. In this study, the researchers also showed that they can form arrays of hundreds of particles in a small test tube. This "packed bed" reactor, unlike thin-film waste-heat harvesters for electronics, generates enough energy to power a chemical reaction called an alcohol oxidation, in which an alcohol is converted to an aldehyde or a ketone. Usually, this reaction is not performed using electrochemistry because it would require too much external current.

"Because the packed bed reactor is compact, it has more flexibility in terms of applications than a large electrochemical reactor," Zhang says. "The particles can be made very small, and they don't require any external wires in order to drive the electrochemical reaction."

In future work, Strano hopes to use this kind of energy generation to build polymers using only carbon dioxide as a starting material. In a related project, he has already created polymers that can regenerate themselves using carbon dioxide as a building material, in a process powered by solar energy and informed by devices that generate electricity at night as a complement. This work is inspired by carbon fixation, the set of chemical reactions that plants use to build sugars from carbon dioxide, using energy from the sun.

In the longer term, this approach could also be used to power micro- or nanoscale robots. Strano's lab has already begun building robots at that scale, which could one day be used as diagnostic or environmental sensors. The idea of being able to scavenge energy from the environment, including approaches that produce electricity 'out of thin air' in ambient conditions, to power these kinds of robots is appealing, he says.

"It means you don't have to put the energy storage on board," he says. "What we like about this mechanism is that you can take the energy, at least in part, from the environment."

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National Grid power supply warning highlights electricity shortage risks amid low wind output, generator outages, and cold weather, reducing capacity margins and grid stability; considering demand response and reserve power to avoid blackout risk.

Key Points

An alert that reduced capacity from low wind and outages requires actions to maintain UK grid stability.

✅ Low wind output and generator outages reduce capacity margins

✅ ESO exploring demand response and reserve generation options

✅ Aim: maintain grid stability and avoid blackout risk

National Grid has warned that Britain’s electricity will be in short supply over the next few days after a string of unplanned power plant outages and unusually low wind speeds this week, as cheap wind power wanes across the system.

The electricity system operator said it will take action to “make sure there is enough generation” during the cold weather spell, including virtual power plants and other demand-side measures, to prevent a second major blackout in as many years.

“Unusually low wind output coinciding with a number of generator outages means the cushion of spare capacity we operate the system with has been reduced,” the company told its Twitter followers.

“We’re exploring measures and actions to make sure there is enough generation available to increase our buffer of capacity.”

A spokeswoman for National Grid said the latest electricity supply squeeze was not expected to be as severe as recorded last month, following reports that the government’s emergency energy plan was not going ahead, and added that the company did not expect to issue an official warning in the next 24 hours.

“We’re monitoring how the situation develops,” she said.

The warning is the second from the electricity system operator in recent weeks. In mid-September the company issued an official warning to the electricity market as peak power prices climbed, that its ‘buffer’ of power reserves had fallen below 500MW and it may need to call on more power plants to help prevent a blackout. The notice was later withdrawn.

Concerns over National Grid’s electricity supplies have been relatively rare in recent years. It was forced in November 2015 to ask businesses to cut their demand as a “last resort” measure to keep the lights on after a string of coal plant breakdowns.

But since then, National Grid’s greater challenge has been an oversupply of electricity, partly due to record wind generation, which has threatened to overwhelm the grid during times of low electricity demand.

National Grid has already spent almost £1bn on extra measures to prevent blackouts over the first half of the year by paying generators to produce less electricity during the coronavirus lockdown, as daily demand fell.

The company paid wind farms to turn off, and EDF Energy to halve the nuclear generation from its Sizewell B nuclear plant, to avoid overwhelming the grid when demand for electricity fell by almost a quarter from last year.

The electricity supply squeeze comes a little over a year after National Grid left large parts of England and Wales without electricity after the biggest blackout in a decade left a million homes in the dark. National Grid blamed a lightning strike for the widespread power failure.

Similar supply strains have recently caused power cuts in China, underscoring how weather and generation mix can trigger blackouts.

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EU Renewable Energy Transition is accelerating under REPowerEU, as wind and solar generation hit records, improving energy security, efficiency, and decarbonization while reducing reliance on Russian fossil fuels across the EU grid.

Key Points

EU shift to wind and solar under REPowerEU to cut fossil fuels, boost efficiency, and secure energy supply.

✅ Wind and solar set record 22% of EU electricity in 2022

✅ REPowerEU targets over 40% renewables and 15% lower demand by 2030

✅ Diversifies away from Russian fuels; partners with US and Norway

Europe is producing all-time highs of wind and solar energy as the 27-country group works to reduce its reliance on fossil fuels from Russia, a shift underscored by Europe's green surge across the bloc.

Four months after Vladimir Putin’s full-scale invasion of Ukraine in February 2022, the European Commission launched REPowerEU. This campaign aims to:

• Boost the use of renewable energy.
• Reduce overall energy consumption.
• Diversify energy sources.

EU countries were already moving toward renewable energy, but Russia’s war against Ukraine accelerated that trend. In 2022, for the first time, renewables surpassed fossil fuels and wind and solar power surpassed gas as a source of electricity. Wind and solar provided a record-breaking 22% of EU countries’ electrical supply, according to London-based energy think tank Ember.

“We have to double down on investments in home-grown renewables,” European Commission President Ursula von der Leyen said in October 2022. “Not only for the climate but also because the transition to the clean energy is the best way to gain independence and to have security of energy supply.”

Across the continent, growth in solar generation rose by 25% in 2022, according to Ember, as solar reshapes electricity prices in Northern Europe. Twenty EU countries produced their highest share of solar power in 2022. In October, Greece ran entirely on renewables for several hours and is seven years ahead of schedule for its 2030 solar capacity target.

Meanwhile, Ireland's green electricity target aims to make more than a third of its power supply renewable within four years.

By 2030, RePowerEU aims to provide more than 40% of the EU’s total power from renewables, aligning with global renewable records being shattered worldwide.

To meet the European Commission’s goal to cut EU energy usage by 15%, people and governments changed their habits and became more energy-efficient, while Germany's solar power boost helped bolster supply. Among their actions:

• Germany turned down the heat in public buildings and lowered the cost of train tickets to reduce car usage, as clean energy hit 50% in Germany during this period.
• Spain ordered stores and public buildings to turn off their lights at night.
• France dimmed the Eiffel Tower and reduced city speed limits.

For the oil and gas that the EU still needed to import, countries turned to partners such as Norway and the United States.

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Wind Turbine Cancer Claim debunked: Iowa Republican senators back wind energy as fact-checks and DOE research find no link between turbine noise and cancer, limited effects on property values, and manageable wildlife impacts.

Key Points

Claims that turbine noise causes cancer, dismissed by studies and officials as unsupported by evidence.

✅ Grassley and Ernst call the claim idiotic and ridiculous

✅ DOE studies find no cancer link; property impacts limited

✅ Wildlife impacts mitigated; climate change poses larger risks

President Donald Trump may not be a fan of wind turbines, as shown by his pledge to scrap offshore wind projects earlier, suggesting that the noise they produce may cause cancer, but Iowa's Republican senators are big fans of wind energy.

Sen. Chuck Grassley called Trump's cancer claim "idiotic." On Thursday, Sen. Joni Ernst called the statement "ridiculous."

"I would say it's ridiculous. It's ridiculous," Ernst said, according to WHO-TV.

She likened the claim that wind turbine noise causes cancer to the idea that church bells do the same.

"I have church bells that ring all the time across from my office here in D.C. and I know that noise doesn't give me cancer, otherwise I'd have 'church bell cancer,'" Ernst said, adding that she is "thrilled" to have wind energy generation in Iowa, which aligns with a quarter-million wind jobs forecast nationwide. "I don't know what the president is drawing from."

Trump has a history of degrading wind energy and wind turbines that dates back long before his Tuesday claim that turbines harm property values and cause cancer, and often overlooks Texas grid constraints that can force turbines offline at times.

Not only are wind farms disgusting looking, but even worse they are bad for people's health.

"Not only are wind farms disgusting looking, but even worse, they are bad for people's health," Trump tweeted back in 2012.

Repeated fact-checks have found no scientific evidence to support the claim that wind turbines and the noise they make can cause cancer. The White House has reportedly provided no evidence to support Trump's cancer claim when asked this week

"It just seems like every time you turn around there's another thing the president is saying -- wind power causes cancer, I associate myself with the remarks of Chairman Grassley -- it's an 'idiotic' statement," Pelosi said in her weekly news conference on Thursday.

The president made his latest claim about wind turbines in a speech on Tuesday at a Republican spring dinner, as the industry continued recovering from the COVID-19 crisis that hit solar and wind energy.

"If you have a windmill anywhere near your house, congratulations, your house just went down 75 percent in value -- and they say the noise causes cancer," Trump said Tuesday, swinging his arm in a circle and making a cranking sound to imitate the noise of windmill blades. "And of course it's like a graveyard for birds. If you love birds, you never want to walk under a windmill. It’s a sad, sad sight."

Wind turbines are not, in fact, proven to have widespread negative impacts on property values, according to the Department of Energy's Office of Scientific and Technical Information in the largest study done so far in the U.S., even as some warn that a solar ITC extension could be devastating for the wind market, and there is no peer-reviewed data to back up the claim that the noise causes cancer.

I am considered a world-class expert in tourism. When you say, 'Where is the expert and where is the evidence?' I say: I am the evidence.

It's true wildlife is affected by wind turbines -- particularly birds and bats, with research showing whooping cranes avoid turbines when selecting stopover sites. One study estimated between 140,000 and 328,000 birds are killed annually by collisions with turbines across the U.S. The U.S. Energy Information Administration estimated, however, that other human-related impacts also contribute to declines in population.

The wind industry works with biologists to find solutions to the impact of turbines on wildlife, and the Department of Energy awards grants each year to researchers addressing the issue, even as the sector faced pandemic investment risks in 2020. But, overall, scientists warn that climate change itself is a bigger threat to bird populations than wind turbines, according to the National Audobon Society.

Speaker Nancy Pelosi: "It just seems like every time you turn around, there's another thing. The president is saying wind power causes cancer. I associate myself with the remarks of Chairman Grassley; It's an 'idiotic' statement"

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Doug Ford's Hydro One firing vow targets CEO pay, the utility's board, and privatization, amid Ontario politics over electricity rates, governance, and control, raising questions about legal tools, contracts, and impacts on customers and taxpayers.

Key Points

Ford vows to oust Hydro One's CEO and board to curb pay and signal rate restraint, subject to legal and governance limits.

✅ Province lacks direct control post-privatization

✅ Possible board removals to influence executive pay

✅ Impact on rates, contracts, and shareholders unclear

Ontario PC Leader Doug Ford is vowing to fire the head of Hydro One, and its entire board if he's elected premier in June.

Ford made the announcement, calling President and CEO Mayo Schmidt, Premier "Kathleen Wynne's $6-Million dollar man," referring to his yearly salary and bonuses, which now add up to $6.2 million.

"This board and this CEO are laughing themselves to the bank," Ford said.

However, it's unclear how Ford would do that since the province does not control the company anymore.

"We don't have the ability to go out and say we are firing the CEO at Hydro One," PC energy critic Todd Smith said while speaking to reporters after Ford's remarks.

#google#

However, he said "we do have tools at our disposal in the tool box. The unfortunate thing is that Kathleen Wynne and the Liberals have just let those tools sit there for the last couple of years and [have] not taken action on things like this."

Smith declined to provide details about what those tools are, but suggested Ford would have the right to fire Hydro's board.

He said that would send a message "that we're not going to accept these salaries."

Smith says the Ontario gov still has the right to fire Hydro One board. What about their contracts? Pay them out? Smith says they don't know the details of people's contacts

We will not engage in politics,' Hydro One says

A Hydro One spokesperson said the amount customers pay to compensate the CEO's salary is the same as before privatization — two cents on each monthly bill.

"We will not engage in politics, however our customers deserve the facts," said the email statement to CBC Toronto.

"Nearly 80 per cent of the total executive compensation package is paid for by shareholders."

Ontario NDP MPP Peter Tabuns says Ford is pro-privatization, and that won't help those struggling with high hydro bills. (Michelle Siu/The Canadian Press)

Peter Tabuns, the NDP's energy critic, said his government would aim to retake public control of Hydro One to cap CEO pay and control the CEO's "outrageous salary."

But while he shares Ford's goal of cutting Schmidt's pay, Tabuns blasted what he believes would be the PC leader's approach.

"Doug Ford has no idea how to reign [sic] in the soaring hydro bills that Ontario families are facing — in fact, if his threats of further privatization include hydro, he'll drive bills and executive salaries ever higher," he said in an email statement.

The only plan we've heard from Doug Ford so far is firing people and laying off people.- Glenn Thibeault, Energy Minister

​Tabuns says his party would aim to cut hydro bills by 30 per cent.

Meanwhile, Liberal Energy Minister Glenn Thibeault said Ford's plan will do nothing to address the actual issue of keeping hydro rates low, comparing his statement Thursday to the rhetoric and actions of U.S. President Donald Trump.

"The only plan we've heard from Doug Ford so far is firing people and laying off people," Thibeault said.

"What I'm seeing a very strong prevalence to is the person running the White House. He's been doing a lot of firing as well and that's not been working out so well for them."

Wynne government has taken steps to cut hydro bills, including legislation to lower electricity rates in Ontario.

Hydro prices have shot up in recent years prompting criticism from across Ontario. Wynne made the controversial move of privatizing part of the utility beginning in 2015.

By Oct. 2017, the Ontario Liberal government's "Fair Hydro Plan" had brought down the average household electricity bill by a 25% rate cut from the peak it hit in the summer of 2016. The Wynne government has also committed to keep rate increases below inflation for the next four years, but admits bills will rise significantly in the decade that follows as a recovery rate could drive costs higher.

Ford blasted the government's moves during a Toronto news conference, echoing calls to scrap the Fair Hydro Plan and review other options.

"The party's over with the tax payer's money, we're going to start respecting the tax payers," Ford said, repeatedly saying the money spent on Hydro One salaries is "morally indefensible."

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Energy Vault Gravity Storage uses crane-stacked concrete blocks to deliver long-duration, grid-scale renewable energy; a SoftBank Vision Fund-backed, pumped-hydro analog enabling baseload power and a lithium-ion alternative with proprietary control algorithms.

Key Points

Gravity-based cranes stack blocks to store and dispatch power for hours, enabling grid-scale, low-cost storage.

✅ 4 MW/35 MWh modules; ~9-hour duration

✅ Estimated $200-$250/kWh; lower LCOE than lithium-ion

✅ Backed by SoftBank Vision Fund; Cemex and Tata support

Energy Vault, the Swiss-U.S. startup that says it can store and discharge electrical energy through a super-sized concrete-and-steel version of a child’s erector set, has landed a $110 million investment from Japan’s SoftBank Vision Fund to take its technology to commercial scale.

Energy Vault, a spinout of Pasadena-based incubator Idealab and co-founded by Idealab CEO and billionaire investor Bill Gross, unstealthed in November with its novel approach to using gravity to store energy.

Simply put, Energy Vault plans to build storage plants — dubbed “Evies” — consisting of a 35-story crane with six arms, surrounded by a tower consisting of thousands of concrete bricks, each weighing about 35 tons.

This plant will “store” energy by using electricity to run the cranes that lift bricks from the ground and stack them atop of the tower, and “discharge” energy by reversing that process. It’s a mechanical twist on the world’s most common energy storage technology, pumped hydro, which “stores” energy by pumping water uphill, and lets it fall to spin turbines when electricity is needed, even as California funds 100-hour long-duration storage pilots to expand flexibility worldwide.

But behind this simplicity lies some heavy-duty software to orchestrate the cranes and blocks, with a "unique stack of proprietary algorithms" to balance energy supply and demand, volatility, grid stability, weather elements and other variables.

CEO and co-founder Robert Piconi said in a November interview with GTM that the standard array would deliver 4 megawatts/35 megawatt-hours of storage, which translates to nearly 9 hours of duration — the equivalent of building the tower to its height, and then reducing it to ground level. It can be built on-site in partnership with crane manufacturers and recycled concrete material, and can run fully automated for decades with little deterioration, he said.

And the cost, which Piconi pegged in the $200 to $250 per kilowatt-hour range, with room to decline further, is roughly 50 percent below the upfront price of the conventional storage market today, and 80 percent below it on levelized cost, he said, a trend utilities see benefits in as they plan resources.

The result, according to Wednesday’s statement, is a technology that could allow “renewables to deliver baseload power for less than the cost of fossil fuels 24 hours a day,” in applications such as community microgrids serving low-income housing.

Wednesday’s announcement builds on a recent investment from Mexico's Cemex Ventures, the corporate venture capital unit of building materials giant Cemex, along with a promise of deployment support from Cemex's strategic network, and also follows project financing for a California green hydrogen microgrid led by the company. Piconi said in November that the company had sufficient investment from two funding rounds to carry it through initial customer deployments, though he declined to disclose figures.

This is the first energy storage investment for Vision Fund, the $100 billion venture fund set up by SoftBank founder Masayoshi Son. While large by startup standards, it’s in keeping with the capital costs that Energy Vault will face in scaling up its technology to meet its commitments, amid mounting demand in regions like Ontario energy storage that face supply crunches. Those include a 35 megawatt-hour order with Tata Power Company, the energy-producing arm of the Indian industrial conglomerate, first unveiled in November, as well as plans to demonstrate its first storage tower in northern Italy in 2019.

For Vision Fund, it’s also an unusual choice for a storage investment, given that the vast majority of venture capital in the industry today is being directed toward lithium-ion batteries, and even Mercedes-Benz energy storage ventures targeting the U.S. market. Lithium-ion batteries are limited in terms of how many hours they can provide cost-effectively, with about 4 hours being seen as the limit today.

The search for long-duration energy storage has driven investment into flow battery technologies such as grid-scale vanadium systems deployed on utility networks, compressed-air energy storage and variations on gravity-based storage, including a previous startup backed by Gross and Idealab, Energy Cache, whose idea of using a ski lift carrying buckets of gravel up a hill to store energy petered out with a 50-kilowatt pilot project.

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