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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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Saudi Arabia Wind Power Market set to lead the Middle East, driven by Vision 2030 renewables goals, REPDO tenders, and PIF backing, adding 6.2GW wind capacity by 2028 alongside solar PV diversification.

Key Points

It is the emerging national segment leading Middle East wind growth, targeting 6.2GW by 2028 under Vision 2030 policies.

✅ Adds 6.2GW, 46% of regional wind capacity by 2028

✅ REPDO tenders and PIF funding underpin pipeline

✅ Targets: 16GW wind, 40GW solar under Vision 2030

Saudi Arabia will become a regional heavyweight in the Middle East's wind power market adding over 6GW in the next 10 years, according to new research by Wood Mackenzie Power & Renewables.

The report – 'Middle East Wind Power Market Outlook, 2019-2028’ – said developers will build 6.2GW of wind capacity in the country or 46% of the region’s total wind capacity additions between 2019 and 2028.

Wood Mackenzie Power & Renewables senior analyst Sohaib Malik said: “The integration of renewables in Vision 2030’s objectives underlines strong political commitment within Saudi Arabia.

“The level of Saudi ambition for wind and solar PV varies significantly, despite the cost parity between both technologies during the first round of tenders in 2018.”

Saudi Arabia has set a 16GW target for wind by 2030 and 40GW for solar, plans to solicit 60 GW of clean energy over the next decade, Wood Mackenzie added.

“Moving forward, the Renewable Energy Project Development Office will award 850MW of wind capacity in 2019, which is expected to be commissioned in 2021-2022, and increase the local content requirement in future tendering rounds,” Malik said.

However, Saudi Arabia will fall short of its current 2030 renewables target, despite growth projections and regional leadership, the report said.

Some 70% of the renewables capacity target is to be supported by the Public Investment Fund (PIF), the Saudi sovereign wealth fund, while the remaining capacity is to be awarded through REPDO.

“A central concern is the PIF’s lack of track record in the renewables sector and its limited in-house sectoral expertise,” said Malik

“REPDO, on the other hand, completed two renewables request for proposals after pre-developing the sites,” he said.

PIF is estimated to have $230bn of assets – targeted to reach $2 trillion under Vision 2030 – driven by investments in a variety of sectors ranging from electric vehicles to public infrastructure, Wood Mackenzie said.

“There is little doubt about the fund’s financial muscle, however, its past investment strategy focused on established firms in traditional industries,” Malik added.

“Aspirations to develop a value chain for wind and PV technologies locally is a different ball game and requires the PIF to acquire new capabilities for effective oversight of these ventures,” he said.

The report noted that regional volatility is expected to remain, with strong positive growth, driven by Jordan and Iran in 2018 expected to reverse in 2019, and policy shifts, as in Canada’s scaled-back projections, can influence outcomes.

Post-2020 Wood Mackenzie Power & Renewables sees regional demand returning to steady growth as global renewables set more records elsewhere.

“In 2018, developers added 185MW and 63MW of wind capacity in Jordan and Iran, respectively, compared to 53MW of capacity across the entire region in 2017, following a record year for renewables in 2016,” said Malik.

“The completion of the 89MW Al Fujeij and the 86MW Al Rajef projects in 2018 indicates that Jordan has 375MW of the region’s operational 675MW wind capacity.

“Iran followed with 278MW of installed capacity at the end of 2018. A slowdown in 2019 is expected, as project development activity softens in Iran.

“Additionally, delays in awarding the 400MW Dumat Al Jandal project in Saudi Arabia will limit annual capacity additions to 184MW.”

He added that a maturing project pipeline in the region supports the 2020-2021 outlook, even as wind power grew despite Covid-19 globally.

“Saudi Arabian demand serves as the foundation for regional demand. Regional demand diversification is also occurring, with Lebanon set to add 200-400MW to its existing permitted capacity pipeline of 202MW in 2019,” he said

“These developments pave the way for the addition of 2GW of wind capacity between 2019 and 2021.”

Wood Mackenzie Power & Renewables added that the outlook for solar in the region is “much more positive” than wind.

“Compared to only 6GW of wind power capacity, developers will add 53GW of PV capacity through 2024,” said Malik.

He added: “Solar PV, supported by trends such as China’s rapid PV growth in 2016, has become a natural choice for many countries in the region, which is endowed with world class solar energy resources.

“The increased focus on solar energy is demonstrated by ambitious PV targets across the region.”

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Texas EV Registration Fee adds a $200 annual charge under Senate Bill 505, offsetting lost gasoline tax revenue to the State Highway Fund, impacting electric vehicle owners at registration and renewals across Texas.

Key Points

A $200 yearly charge on electric vehicles to replace lost gasoline tax revenue and support Texas Highway Fund road work.

✅ $200 due at registration or renewal; $400 upfront on new EVs.

✅ Enacted by Senate Bill 505 to offset lost gasoline tax revenue.

✅ Advocates propose mileage-based fees; limited $2,500 rebates exist.

Plano resident Tony Federico bought his Tesla five years ago in part because he hated spending lots of money on gas, and Supercharger billing changes have also influenced charging expenses. But that financial calculus will change slightly on Sept. 1, when Texas will start charging electric vehicle drivers an additional fee of $200 each year.

“It just seems like it’s arbitrary, with no real logic behind it,” said Federico, 51, who works in information technology. “But I’m going to have to pay it.”

Earlier this year, state lawmakers passed Senate Bill 505, which requires electric vehicle owners to pay the fee when they register a vehicle or renew their registration, even as fights for control over charging continue among utilities, automakers and retailers. It’s being imposed because lawmakers said EV drivers weren’t paying their fair share into a fund that helps cover road construction and repairs across Texas.

The cost will be especially high for those who purchase a new electric vehicle and have to pay two years of registration, or $400, up front.

Texas agencies estimated in a 2020 report that the state lost an average of $200 per year in federal and state gasoline tax dollars when an electric vehicle replaced a gas-fueled one. The agencies called the fee “the most straightforward” remedy.

Gasoline taxes go to the State Highway Fund, which the Texas Department of Transportation calls its “primary funding source.” Electric vehicle drivers don’t pay those taxes, though, because they don’t use gasoline.

Still, EV drivers do use the roads. And while electric vehicles make up a tiny portion of cars in Texas for now, that fraction is expected to increase, raising concerns about state power grids in the years ahead.

Many environmental and consumer advocates agreed with lawmakers that EV drivers should pay into the highway fund but argued over how much, and debates over fairer vehicle taxes are surfacing abroad as well.

Some thought the state should set the fee lower to cover only the lost state tax dollars, rather than both the state and federal money, because federal officials may devise their own scheme. Others argued the state should charge nothing because EVs help reduce greenhouse gas emissions that drive climate change and can offer budget benefits for many owners.

“We urgently need to get more electric vehicles on the road,” said Luke Metzger, executive director of Environment Texas. “Any increased fee could create an additional barrier for Texans, and particularly more moderate- to low-income Texans, to make that transition.”

Tom “Smitty” Smith, the executive director of the Texas Electric Transportation Resources Alliance, advocated for a fee based on how many miles a person drove their electric car, which would better mirror how the gas taxes are assessed.

Texas has a limited incentive that could offset the cost: It offers rebates of up to $2,500 for up to 2,000 new hydrogen fuel cell, electric or hybrid vehicles every two years. Adrian Shelley, Public Citizen’s Texas office director, recommended that the state expand the rebates, noting that state-level EV benefits can be significant.

In the Houston area, dealer Steven Wolf isn’t worried about the fee deterring potential customers from buying the electric Ford F-150 Lightning and Mustang Mach-E vehicles he sells. Electric cars are already more expensive than comparable gasoline-fueled cars, and charging networks compete for drivers, he said.

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London Tube Strikes Economic Impact highlights transport disruption reducing foot traffic, commuter flows, and tourism, squeezing small businesses, hospitality revenue, and citywide growth while business leaders urge negotiations, resolution, and policy responses to stabilize operations.

Key Points

Reduced transport options cut foot traffic and sales, straining small businesses and slowing London-wide growth.

✅ Hospitality venues report lower revenue and temporary closures

✅ Commuter and tourism declines reduce daily sales and bookings

✅ Business groups urge swift negotiations to restore services

London's economy is facing significant challenges due to ongoing tube strikes, challenges that are compounded by scrutiny of UK energy network profits and broader cost pressures across sectors, with businesses across the city experiencing disruptions that are impacting their operations and bottom lines.

Impact on Small Businesses

Small businesses, particularly those in the hospitality sector, are bearing the brunt of the disruptions caused by the strikes. Many establishments rely on the steady flow of commuters and tourists that the tube system facilitates, while also hoping for measures like temporary electricity bill relief that can ease operating costs during downturns. With reduced transportation options, foot traffic has dwindled, leading to decreased sales and, in some cases, temporary closures.

Economic Consequences

The strikes are not only affecting individual businesses but are also having a ripple effect on the broader economy, a dynamic seen when commercial electricity consumption plummeted in B.C. during the pandemic. The reduced activity in key sectors is contributing to a slowdown in economic growth, echoing periods when BC Hydro demand fell 10% and prompting policy responses such as Ontario electricity rate reductions for businesses, with potential long-term consequences if the disruptions continue.

Calls for Resolution

Business leaders and industry groups are urging for a swift resolution to the strikes. They emphasize the need for dialogue between the involved parties to reach an agreement that minimizes further economic damage and restores normalcy to the city's transportation system.

The ongoing tube strikes in London are causing significant disruptions to the city's economy, particularly affecting small businesses that depend on the efficient movement of people. Immediate action is needed to address the issues, drawing on tools like a subsidized hydro plan used elsewhere to spur recovery, to prevent further economic downturn.

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BCER Renewable Energy Permitting streamlines single-window approvals for wind, solar, and transmission projects in BC, cutting red tape, aligning with CleanBC, and accelerating investment, Indigenous partnerships, and low-carbon infrastructure growth provincewide.

Key Points

BC's single-window framework consolidates approvals for wind, solar, and transmission to accelerate energy projects.

✅ Single-window permits via BC Energy Regulator (BCER)

✅ Covers wind, solar, and high-voltage transmission lines

✅ Aligns with CleanBC, supports Indigenous partnerships

In a decisive move to bolster clean energy initiatives, the government of British Columbia (B.C.) has announced plans to overhaul the regulatory framework governing renewable energy projects. This initiative aims to expedite the development of wind, solar, and other renewable energy sources, positioning B.C. as a leader in sustainable energy production.

Transitioning Regulatory Authority to the BC Energy Regulator (BCER)

Central to this strategy is the proposed legislation, set to be introduced in spring 2025, which will transfer the permitting and regulatory oversight of renewable energy projects, aligning with offshore wind regulation plans at the federal level, from multiple agencies to the BC Energy Regulator (BCER). This transition is designed to create a "single-window" permitting process, simplifying approvals and reducing bureaucratic delays for developers.

Expanding BCER's Mandate

Historically known as the British Columbia Oil and Gas Commission, the BCER's mandate has evolved to encompass a broader range of energy projects. The upcoming legislation will empower the BCER to oversee renewable energy projects, including wind and solar, as well as high-voltage transmission lines like the North Coast Transmission Line (NCTL), in step with renewable transmission planning efforts elsewhere in North America. This expansion aims to streamline the regulatory process, providing developers with a single point of contact throughout the project lifecycle.

Economic and Environmental Implications

The restructuring is expected to unlock significant economic opportunities. Projections suggest that the streamlined process could attract between $5 billion and $6 billion in private investment and complement recent federal grid modernization funding initiatives, generating employment opportunities and fostering economic growth. Moreover, by facilitating the rapid deployment of renewable energy projects, B.C. aims to enhance its clean energy capacity, contributing to global sustainability goals.

Strengthening Partnerships with Indigenous Communities

A pivotal aspect of this initiative is the emphasis on collaboration with Indigenous communities. The government has highlighted the importance of engaging First Nations in the development process, ensuring that projects are not only environmentally sustainable but also socially responsible. This approach seeks to honor Indigenous rights and knowledge, fostering partnerships that benefit all stakeholders.

Supporting Infrastructure Development

The acceleration of renewable energy projects necessitates corresponding infrastructure enhancements. The NCTL, for instance, is crucial for meeting the increased electricity demand from sectors such as mining, port electrification, and hydrogen production, and for addressing regional grid constraints that limit renewable integration. By improving the transmission infrastructure, B.C. aims to support the growing energy needs of these industries while promoting clean energy solutions.

Aligning with CleanBC Objectives

This regulatory overhaul aligns seamlessly with B.C.'s CleanBC initiative, which sets ambitious targets for reducing greenhouse gas emissions and promoting energy efficiency, and supports Canada's goal of zero-emissions electricity by 2035 under active consideration. By removing regulatory barriers and expediting project approvals, the government aims to accelerate the transition to a low-carbon economy, positioning B.C. as a hub for clean energy innovation.

Addressing Potential Challenges

While the initiative has been lauded for its potential, experts caution that careful consideration must be given to environmental assessments and Indigenous consultation processes, as well as to lessons from Alberta's solar expansion challenges on land use and grid impacts. Ensuring that projects meet environmental standards and respect Indigenous rights is crucial for the long-term success and acceptance of renewable energy developments.

The proposed changes mark a significant shift in B.C.'s approach to energy development, reflecting a commitment to sustainability and economic growth. As the legislation moves through the legislative process, stakeholders across the energy sector are closely monitoring developments, particularly as Alberta ends its renewables moratorium and resumes project approvals across the Prairies, anticipating a more efficient and transparent regulatory environment that supports the rapid expansion of renewable energy projects.

B.C.'s plan to streamline the regulatory process for clean energy projects represents a bold step toward a sustainable and prosperous energy future. By consolidating regulatory authority under the BCER, fostering Indigenous partnerships, and aligning with broader environmental objectives, the province is setting a precedent for effective governance in the transition to renewable energy.

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Ecofiscal Commission EV Policy Shift examines carbon pricing limits, endorsing signal boosters like subsidies, EV incentives, and coal bans, amid advisory changes and public pushback, to accelerate emissions cuts beyond market-based taxes and regulations.

Key Points

An updated stance recognizing carbon pricing limits and backing EV incentives, subsidies, and rules to reduce emissions.

✅ Carbon pricing plus subsidies, EV incentives

✅ Advisory shift; Jack Mintz departs

✅ Focus on emissions cuts, coal power bans

Something strange happened at the Ecofiscal Commission recently. Earlier this month, the carbon-tax advocacy group featured on its website as one of its advisers the renowned Canadian economist (and FP Comment columnist) Jack M. Mintz. The other day, suddenly and without fanfare, Mintz was gone from the website, and the commission’s advisory board.

Advisers come and advisers go, of course, but it turns out there was an impetus for Mintz’s departure. The Ecofiscal Commission in its latest report, dropped just before Canada Day, seemingly shifted from its position that carbon prices were so excellent at mimicking market forces that the tax could repeal and replace virtually the entire vast expensive gallimaufry of subsidies, caps, rules and regulations that are costing Canada a fortune in business and bureaucrats. As some Ecofiscal commissioners wrote just a few months ago, policies that “dictate specific technologies or methods for reducing emissions constrain private choice and increase costs” and were a bad idea.

But, in this latest report, the commission is now musing about the benefits of carbon-tax “signal boosters”: that is, EV subsidies and rules to, for instance, get people to start buying electric vehicles (EVs), as well as bans on coal-fired power. “Even well designed carbon pricing can have limitations,” rationalized the commission. Mintz said he had “misgivings” about the change of tack. He decided it best if he focus his advisory energies elsewhere.

It’s hard to blame the commission for falling like everyone else for the electric-car mania that’s sweeping the nation and the world. Electric cars offer a sexiness that dreary old carbon taxes can never hope to match — especially in light of a new Angus Reid poll last week that showed the majority of Canadians now want governments to shelve any plans for carbon taxes.

So far, because nobody’s really driving these miracle machines, said mania has been limited to breathless news reports about how the electric-vehicle revolution is about to rock our world. EVs comprise just two-tenths of a per cent of all passenger vehicles in North America, despite the media’s endless hype and efforts of green-obsessed governments to cover much of the price tag, like Ontario’s $14,000 rebate for Tesla buyers. In Europe, where virtue-signalling urban environmentalism is the coolest, they’re not feeling the vehicular electricity much more: EVs account for barely one per cent of personal vehicles in France, the U.K. and Germany. When Hong Kong cancelled Tesla rebates in April, sales fell to zero.

Going by the ballyhoo, you’d think EVs were at an inflection point and an unstoppable juggernaut. But it’s one that has yet to even get started. In his 2011 State of the Union address, then president Barack Obama predicted one million electric cars on the road by 2015. Four years later, there wasn’t even a third that many. California offered so many different subsidies for electric vehicles that low-income families could get rebates of up to US$13,500, but it still isn’t even close to reaching its target of having zero-emission vehicles make up 15 per cent of California auto sales by 2025, being stuck at three per cent since 2014. Ontario’s Liberal government last year announced to much laughter its plan to ensure that every family would have at least one zero-emission vehicle (ZEV) by 2024, and Quebec made a plan to make ZEVs worth 15.5 per cent of sales by 2020, while Ottawa’s 2035 EV mandate attracts criticism too. Let’s see how that’s going: Currently, ZEVs make up 0.16 per cent of new vehicle sales in Ontario and 0.38 per cent in Quebec.

The latest sensational but bogus EV news out last week was France’s government announcing the “end of the sale of gasoline and diesel cars by 2040,” and Volvo apparently announcing that as of 2019, all its models would be “electric.” Both announcements made international headlines. Both are baloney. France provided no actual details about this plan (will it literally become a crime to sell a gasoline car? Will hybrids, run partly on gasoline, be allowed?), but more importantly, as automotive writer Ed Wiseman pointed out in The Guardian, a lot will happen in technology and automotive use over the next 23 years that France has no way to predict, with changes in self-driving cars, public car-sharing and fuel technologies. Imagine making rules for today’s internet back in 1994.

Volvo, meanwhile, looked to be recycling and repackaging years-old news to seize on today’s infatuation with electric vehicles to burnish its now Chinese-owned brand. Since 2010, Volvo’s plan has been to focus on engines that were partly electric, with electric turbochargers, but still based on gasoline. Volvo doesn’t actually have an all-electric model, but the gasoline-swigging engine of its popular XC90 SUV is, partly, electrical. When Volvo said all its models would in two years be “electric,” it meant this kind of engine, not that it was phasing out the internal-combustion gasoline engine. But that is what it wanted reporters to think, and judging by all the massive and inaccurate coverage, it worked.

The real story being missed is just how pathetic things look right now for electric cars. Gasoline prices in the U.S. turned historically cheap in 2015 and stayed cheap, icing demand for gasless cars. Tesla, whose founder’s self-promotion had made the niche carmaker magically more valuable than powerhouses like Ford and GM, haemorrhaged US$12 billion in market value last week after tepid sales figures brought some investors back to Earth, even as the company’s new Model 3 began rolling off the line.

Not helping is that environmental claims about environmental cars are falling apart. In June, Tesla was rocked by a controversial Swedish study that found that making one of its car batteries released as much CO2 as eight years of gasoline-powered driving. And Bloomberg reported last week on a study by Chinese engineers that found that electric vehicles, because of battery manufacturing and charging by fossil-fuel-powered electricity sources, emit 50-per-cent more carbon than do internal-combustion engines. Still, the electric-vehicle hype not only continues unabated, it gets bigger and louder every day. If some car company figures out how to harness it, we’d finally have a real automotive revolution on our hands.

Kevin Libin, Financial Post

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