Trimming the tree, trimming the costs

Brain Stimulation is transforming neuromodulation, from TMS and DBS to closed loop devices, targeting neural circuits for addiction, depression, Parkinsons, epilepsy, and chronic pain, powered by advanced imaging, AI analytics, and the NIH BRAIN Initiative.

Key Points

Brain stimulation uses pulses to modulate neural circuits, easing symptoms in depression, Parkinsons, and epilepsy.

✅ Noninvasive TMS and invasive DBS modulate specific brain circuits

✅ Closed loop systems adapt stimulation via real time biomarker detection

✅ Emerging uses: addiction, depression, Parkinsons, epilepsy, chronic pain

In June 2015, biology professor Colleen Hanlon went to a conference on drug dependence. As she met other researchers and wandered around a glitzy Phoenix resort’s conference rooms to learn about the latest work on therapies for drug and alcohol use disorders, she realized that out of the 730 posters, there were only two on brain stimulation as a potential treatment for addiction — both from her own lab at Wake Forest School of Medicine.

Just four years later, she would lead 76 researchers on four continents in writing a consensus article about brain stimulation as an innovative tool for addiction. And in 2020, the Food and Drug Administration approved a transcranial magnetic stimulation device to help patients quit smoking, a milestone for substance use disorders.

Brain stimulation is booming. Hanlon can attend entire conferences devoted to the study of what electrical currents do—including how targeted stimulation can improve short-term memory in older adults—to the intricate networks of highways and backroads that make up the brain’s circuitry. This expanding field of research is slowly revealing truths of the brain: how it works, how it malfunctions, and how electrical impulses, precisely targeted and controlled, might be used to treat psychiatric and neurological disorders.

In the last half-dozen years, researchers have launched investigations into how different forms of neuromodulation affect addiction, depression, loss-of-control eating, tremor, chronic pain, obsessive compulsive disorder, Parkinson’s disease, epilepsy, and more. Early studies have shown subtle electrical jolts to certain brain regions could disrupt circuit abnormalities — the miscommunications — that are thought to underlie many brain diseases, and help ease symptoms that persist despite conventional treatments.

The National Institute of Health’s massive BRAIN Initiative put circuits front and center, distributing $2.4 billion to researchers since 2013 to devise and use new tools to observe interactions between brain cells and circuits. That, in turn, has kindled interest from the private sector. Among the advances that have enhanced our understanding of how distant parts of the brain talk with one another are new imaging technology and the use of machine learning, much as utilities use AI to adapt to shifting electricity demand, to interpret complex brain signals and analyze what happens when circuits go haywire.

Still, the field is in its infancy, and even therapies that have been approved for use in patients with, for example, Parkinson’s disease or epilepsy, help only a minority of patients, and in a world where electricity drives pandemic readiness expectations can outpace evidence. “If it was the Bible, it would be the first chapter of Genesis,” said Michael Okun, executive director of the Norman Fixel Institute for Neurological Diseases at University of Florida Health.

As brain stimulation evolves, researchers face daunting hurdles, and not just scientific ones. How will brain stimulation become accessible to all the patients who need it, given how expensive and invasive some treatments are? Proving to the FDA that brain stimulation works, and does so safely, is complicated and expensive. Even with a swell of scientific momentum and an influx of funding, the agency has so far cleared brain stimulation for only a handful of limited conditions. Persuading insurers to cover the treatments is another challenge altogether. And outside the lab, researchers are debating nascent issues, such as the ethics of mind control, the privacy of a person’s brain data—concerns that echo efforts to develop algorithms to prevent blackouts during rising ransomware threats—and how to best involve patients in the study of the human brain’s far-flung regions.

Neurologist Martha Morrell is optimistic about the future of brain stimulation. She remembers the shocked reactions of her colleagues in 2004 when she left full-time teaching at Stanford (she still has a faculty appointment as a clinical professor of neurology) to direct clinical trials at NeuroPace, then a young company making neurostimulator systems to potentially treat epilepsy patients.

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“When I started working on this, everybody thought I was insane,” said Morrell. Nearly 20 years in, she sees a parallel between the story of jolting the brain’s circuitry and that of early implantable cardiac devices, such as pacemakers and defibrillators, which initially “were used as a last option, where all other medications have failed.” Now, “the field of cardiology is very comfortable incorporating electrical therapy, device therapy, into routine care. And I think that’s really where we’re going with neurology as well.”

Reaching a ‘slope of enlightenment’
Parkinson’s is, in some ways, an elder in the world of modern brain stimulation, and it shows the potential as well as the limitations of the technology. Surgeons have been implanting electrodes deep in the brains of Parkinson’s patients since the late 1990s, and in people with more advanced disease since the early 2000s.

In that time, it’s gone through the “hype cycle,” said Okun, the national medical adviser to the Parkinson’s Foundation since 2006. Feverish excitement and overinflated expectations have given way to reality, bringing scientists to a “slope of enlightenment,” he said. They have found deep brain stimulation to be very helpful for some patients with Parkinson’s, rendering them almost symptom-free by calming the shaking and tremors that medications couldn’t. But it doesn’t stop the progression of the disease, or resolve some of the problems patients with advanced Parkinson’s have walking, talking, and thinking.

In 2015, the same year Hanlon found only her lab’s research on brain stimulation at the addiction conference, Kevin O’Neill watched one finger on his left hand start doing something “funky.” One finger twitched, then two, then his left arm started tingling and a feeling appeared in his right leg, like it was about to shake but wouldn’t — a tremor.

“I was assuming it was anxiety,” O’Neill, 62, told STAT. He had struggled with anxiety before, and he had endured a stressful year: a separation, selling his home, starting a new job at a law firm in California’s Bay Area. But a year after his symptoms first began, O’Neill was diagnosed with Parkinson’s.

In the broader energy context, California has increasingly turned to battery storage to stabilize its strained grid.

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Doctors prescribed him pills that promote the release of dopamine, to offset the death of brain cells that produce this messenger molecule in circuits that control movement. But he took them infrequently because he worried about insomnia as a side effect. Walking became difficult — “I had to kind of think my left leg into moving” — and the labor lawyer found it hard to give presentations and travel to clients’ offices.

A former actor with an outgoing personality, he developed social anxiety and didn’t tell his bosses about his diagnosis for three years, and wouldn’t have, if not for two workdays in summer 2018 when his tremors were severe and obvious.

O’Neill’s tremors are all but gone since he began deep brain stimulation last May, though his left arm shakes when he feels tense.

It was during that period that he learned about deep brain stimulation, at a support group for Parkinson’s patients. “I thought, ‘I will never let anybody fuss with my brain. I’m not going to be a candidate for that,’” he recalled. “It felt like mad scientist science fiction. Like, are you kidding me?”

But over time, the idea became less radical, as O’Neill spoke to DBS patients and doctors and did his own research, and as his symptoms worsened. He decided to go for it. Last May, doctors at the University of California, San Francisco surgically placed three metal leads into his brain, connected by thin cords to two implants in his chest, just near the clavicles. A month later, he went into the lab and researchers turned the device on.

“That was a revelation that day,” he said. “You immediately — literally, immediately — feel the efficacy of these things. … You go from fully symptomatic to non-symptomatic in seconds.”

When his nephew pulled up to the curb to pick him up, O’Neill started dancing, and his nephew teared up. The following day, O’Neill couldn’t wait to get out of bed and go out, even if it was just to pick up his car from the repair shop.

In the year since, O’Neill’s walking has gone from “awkward and painful” to much improved, and his tremors are all but gone. When he is extra frazzled, like while renovating and moving into his new house overlooking the hills of Marin County, he feels tense and his left arm shakes and he worries the DBS is “failing,” but generally he returns to a comfortable, tremor-free baseline.

O’Neill worried about the effects of DBS wearing off but, for now, he can think “in terms of decades, instead of years or months,” he recalled his neurologist telling him. “The fact that I can put away that worry was the big thing.”

He’s just one patient, though. The brain has regions that are mostly uniform across all people. The functions of those regions also tend to be the same. But researchers suspect that how brain regions interact with one another — who mingles with whom, and what conversation they have — and how those mixes and matches cause complex diseases varies from person to person. So brain stimulation looks different for each patient.

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Each case of Parkinson’s manifests slightly differently, and that’s a bit of knowledge that applies to many other diseases, said Okun, who organized the nine-year-old Deep Brain Stimulation Think Tank, where leading researchers convene, review papers, and publish reports on the field’s progress each year.

“I think we’re all collectively coming to the realization that these diseases are not one-size-fits-all,” he said. “We have to really begin to rethink the entire infrastructure, the schema, the framework we start with.”

Brain stimulation is also used frequently to treat people with common forms of epilepsy, and has reduced the number of seizures or improved other symptoms in many patients. Researchers have also been able to collect high-quality data about what happens in the brain during a seizure — including identifying differences between epilepsy types. Still, only about 15% of patients are symptom-free after treatment, according to Robert Gross, a neurosurgery professor at Emory University in Atlanta.

“And that’s a critical difference for people with epilepsy. Because people who are symptom-free can drive,” which means they can get to a job in a place like Georgia, where there is little public transit, he said. So taking neuromodulation “from good to great,” is imperative, Gross said.

Renaissance for an ancient idea
Recent advances are bringing about what Gross sees as “almost a renaissance period” for brain stimulation, though the ideas that undergird the technology are millenia old. Neuromodulation goes back to at least ancient Egypt and Greece, when electrical shocks from a ray, called the “torpedo fish,” were recommended as a treatment for headache and gout. Over centuries, the fish zaps led to doctors burning holes into the brains of patients. Those “lesions” worked, somehow, but nobody could explain why they alleviated some patients’ symptoms, Okun said.

Perhaps the clearest predecessor to today’s technology is electroconvulsive therapy (ECT), which in a rudimentary and dangerous way began being used on patients with depression roughly 100 years ago, said Nolan Williams, director of the Brain Stimulation Lab at Stanford University.

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More modern forms of brain stimulation came about in the United States in the mid-20th century. A common, noninvasive approach is transcranial magnetic stimulation, which involves placing an electromagnetic coil on the scalp to transmit a current into the outermost layer of the brain. Vagus nerve stimulation (VNS), used to treat epilepsy, zaps a nerve that contributes to some seizures.

The most invasive option, deep brain stimulation, involves implanting in the skull a device attached to electrodes embedded in deep brain regions, such as the amygdala, that can’t be reached with other stimulation devices. In 1997, the FDA gave its first green light to deep brain stimulation as a treatment for tremor, and then for Parkinson’s in 2002 and the movement disorder dystonia in 2003.

Even as these treatments were cleared for patients, though, what was happening in the brain remained elusive. But advanced imaging tools now let researchers peer into the brain and map out networks — a recent breakthrough that researchers say has propelled the field of brain stimulation forward as much as increased funding has, paralleling broader efforts to digitize analog electrical systems across industry. Imaging of both human brains and animal models has helped researchers identify the neuroanatomy of diseases, target brain regions with more specificity, and watch what was happening after electrical stimulation.

Another key step has been the shift from open-loop stimulation — a constant stream of electricity — to closed-loop stimulation that delivers targeted, brief jolts in response to a symptom trigger. To make use of the futuristic technology, labs need people to develop artificial intelligence tools, informed by advances in machine learning for the energy transition, to interpret large data sets a brain implant is generating, and to tailor devices based on that information.

“We’ve needed to learn how to be data scientists,” Morrell said.

Affinity groups, like the NIH-funded Open Mind Consortium, have formed to fill that gap. Philip Starr, a neurosurgeon and developer of implantable brain devices at the University of California at San Francisco Health system, leads the effort to teach physicians how to program closed-loop devices, and works to create ethical standards for their use. “There’s been extraordinary innovation after 20 years of no innovation,” he said.

The BRAIN Initiative has been critical, several researchers told STAT. “It’s been a godsend to us,” Gross said. The NIH’s Brain Research through Advancing Innovative Neurotechnologies (BRAIN) Initiative was launched in 2013 during the Obama administration with a $50 million budget. BRAIN now spends over $500 million per year. Since its creation, BRAIN has given over 1,100 awards, according to NIH data. Part of the initiative’s purpose is to pair up researchers with medical technology companies that provide human-grade stimulation devices to the investigators. Nearly three dozen projects have been funded through the investigator-devicemaker partnership program and through one focused on new implantable devices for first-in-human use, according to Nick Langhals, who leads work on neurological disorders at the initiative.

The more BRAIN invests, the more research is spawned. “We learn more about what circuits are involved … which then feeds back into new and more innovative projects,” he said.

Many BRAIN projects are still in early stages, finishing enrollment or small feasibility studies, Langhals said. Over the next couple of years, scientists will begin to see some of the fruits of their labor, which could lead to larger clinical trials, or to companies developing more refined brain stimulation implants, Langhals said.

Money from the National Institutes of Mental Health, as well as the NIH’s Helping to End Addiction Long-term (HEAL), has similarly sweetened the appeal of brain stimulation, both for researchers and industry. “A critical mass” of companies interested in neuromodulation technology has mushroomed where, for two decades, just a handful of companies stood, Starr said.

More and more, pharmaceutical and digital health companies are looking at brain stimulation devices “as possible products for their future,” said Linda Carpenter, director of the Butler Hospital TMS Clinic and Neuromodulation Research Facility.

‘Psychiatry 3.0’
The experience with using brain stimulation to stop tremors and seizures inspired psychiatrists to begin exploring its use as a potentially powerful therapy for healing, or even getting ahead of, mental illness.

In 2008, the FDA approved TMS for patients with major depression who had tried, and not gotten relief from, drug therapy. “That kind of opened the door for all of us,” said Hanlon, a professor and researcher at the Center for Research on Substance Use and Addiction at Wake Forest School of Medicine. The last decade saw a surge of research into how TMS could be used to reset malfunctioning brain circuits involved in anxiety, depression, obsessive-compulsive disorder, and other conditions.

“We’re certainly entering into what a lot of people are calling psychiatry 3.0,” Stanford’s Williams said. “Whereas the first iteration was Freud and all that business, the second one was the psychopharmacology boom, and this third one is this bit around circuits and stimulation.”

Drugs alleviate some patients’ symptoms while simultaneously failing to help many others, but psychopharmacology clearly showed “there’s definitely a biology to this problem,” Williams said — a biology that in some cases may be more amenable to a brain stimulation.

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The exact mechanics of what happens between cells when brain circuits … well, short-circuit, is unclear. Researchers are getting closer to finding biomarkers that warn of an incoming depressive episode, or wave of anxiety, or loss of impulse control. Those brain signatures could be different for every patient. If researchers can find molecular biomarkers for psychiatric disorders — and find ways to preempt those symptoms by shocking particular brain regions — that would reshape the field, Williams said.

Not only would disease-specific markers help clinicians diagnose people, but they could help chip away at the stigma that paints mental illness as a personal or moral failing instead of a disease. That’s what happened for epilepsy in the 1960s, when scientific findings nudged the general public toward a deeper understanding of why seizures happen, and it’s “the same trajectory” Williams said he sees for depression.

His research at the Stanford lab also includes work on suicide, and obsessive-compulsive disorder, which the FDA said in 2018 could be treated using noninvasive TMS. Williams considers brain stimulation, with its instantaneity, to be a potential breakthrough for urgent psychiatric situations. Doctors know what to do when a patient is rushed into the emergency room with a heart attack or a stroke, but there is no immediate treatment for psychiatric emergencies, he said. Williams wonders: What if, in the future, a suicidal patient could receive TMS in the emergency room and be quickly pulled out of their depressive mental spiral?

Researchers are also actively investigating the brain biology of addiction. In August 2020, the FDA approved TMS for smoking cessation, the first such OK for a substance use disorder, which is “really exciting,” Hanlon said. Although there is some nuance when comparing substance use disorders, a primal mechanism generally defines addiction: the eternal competition between “top-down” executive control functions and “bottom-up” cravings. It’s the same process that is at work when one is deciding whether to eat another cookie or abstain — just exacerbated.

Hanlon is trying to figure out if the stop and go circuits are in the same place for all people, and whether neuromodulation should be used to strengthen top-down control or weaken bottom-up cravings. Just as brain stimulation can be used to disrupt cellular misfiring, it could also be a tool for reinforcing helpful brain functions, or for giving the addicted brain what it wants in order to curb substance use.

Evidence suggests many people with schizophrenia smoke cigarettes (a leading cause of early death for this population) because nicotine reduces the “hyperconnectivity” that characterizes the brains of people with the disease, said Heather Ward, a research fellow at Boston’s Beth Israel Deaconess Medical Center. She suspects TMS could mimic that effect, and therefore reduce cravings and some symptoms of the disease, and she hopes to prove that in a pilot study that is now enrolling patients.

If the scientific evidence proves out, clinicians say brain stimulation could be used alongside behavioral therapy and drug-based therapy to treat substance use disorders. “In the end, we’re going to need all three to help people stay sober,” Hanlon said. “We’re adding another tool to the physician’s toolbox.”

Decoding the mysteries of pain
Afavorable outcome to the ongoing research, one that would fling the doors to brain stimulation wide open for patients with myriad disorders, is far from guaranteed. Chronic pain researchers know that firsthand.

Chronic pain, among the most mysterious and hard-to-study medical phenomena, was the first use for which the FDA approved deep brain stimulation, said Prasad Shirvalkar, an assistant professor of anesthesiology at UCSF. But when studies didn’t pan out after a year, the FDA retracted its approval.

Shirvalkar is working with Starr and neurosurgeon Edward Chang on a profoundly complex problem: “decoding pain in the brain states, which has never been done,” as Starr told STAT.

Part of the difficulty of studying pain is that there is no objective way to measure it. Much of what we know about pain is from rudimentary surveys that ask patients to rate how much they’re hurting, on a scale from zero to 10.

Using implantable brain stimulation devices, the researchers ask patients for a 0-to-10 rating of their pain while recording up-and-down cycles of activity in the brain. They then use machine learning to compare the two streams of information and see what brain activity correlates with a patient’s subjective pain experience. Implantable devices let researchers collect data over weeks and months, instead of basing findings on small snippets of information, allowing for a much richer analysis.

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Bruce Power Capacity Uprate boosts nuclear output through generator stator upgrades, turbine and transformer enhancements, and cooling pump improvements at Bruce A and B, unlocking megawatts and efficiency gains from legacy heavy water design capacity.

Key Points

Upgrades that raise Bruce Power capacity via stator, turbine, transformer, and cooling enhancements.

✅ Generator stator replacement increases electrical conversion efficiency

✅ Turbine and transformer upgrades enable higher MW output

✅ Cooling pump enhancements optimize plant thermal performance

Bruce Power’s Unit 3 nuclear reactor will squeeze out an extra 22 megawatts of electricity, thanks to upgrades during its recent planned outage for refurbishment.

Similar gains are anticipated at its three sister reactors at Bruce A generating station, which presents the opportunity for the biggest efficiency gains and broader economic benefits for Ontario, due to a design difference over Bruce B’s four reactors, Bruce Power spokesman John Peevers said.

Bruce A reactor efficiency gains stem mainly from the fact Bruce A’s non-nuclear side, including turbines and the generator, was sized at 88 per cent of the nuclear capacity, Peevers said, while early Bruce C exploration work advances.

This allowed 12 per cent of the energy, in the form of steam, to be used for heavy water production, which was discontinued at the plant years ago. Heavy water, or deuterium, is used to moderate the reactors.

That design difference left a potential excess capacity that Bruce Power is making use of through various non-nuclear enhancements. But the nuclear operator, which also made major PPE donations during the pandemic, will be looking at enhancements at Bruce B as well, Peevers said.

Bruce Power’s efficiency gain came from “technology advancements,” including a “generator-stator improvement project that was integral to the uprate,” and contributed to an operating record at the site, a Bruce Power news release said July 11.

Peevers said the stationary coils and the associated iron cores inside the generator are referred to as the stator. The stator acts as a conductor for the main generator current, while the turbine provides the mechanical torque on the shaft of the generator.

“Some of the other things we’re working on are transformer replacement and cooling pump enhancements, backed by recent manufacturing contracts, which also help efficiency and contribute to greater megawatt output,” Peevers said.

The added efficiency improvements raised the nuclear operator’s peak generating capacity to 6,430 MW, as projects like Pickering life extensions continue across Ontario.

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Five Nations Energy Transmission Line connects remote First Nations to the Ontario power grid, delivering clean, reliable electricity to Western James Bay through Indigenous-owned transmission infrastructure, replacing diesel generators and enabling sustainable community growth.

Key Points

An Indigenous-owned grid link providing reliable power to Western James Bay First Nations, replacing polluting diesel.

✅ Built by five First Nations; fully Indigenous-owned utility

✅ 270 km line connecting remote James Bay communities

✅ Ended diesel dependence; enabled sustainable development

For the Indigenous communities along northern Ontario’s James Bay — the ones that have lived on and taken care of the lands as long as anyone can remember — the new millenium marked the start of a diesel-less future, even as Ontario’s electricity outlook raised concerns about getting dirtier in policy debates. 

While the southern part of the province took Ontario’s power grid for granted, despite lessons from Europe’s power crisis about reliability, the vast majority of these communities had never been plugged in. Their only source of power was a handful of very loud diesel-powered generators. Because of that, daily life in the Attawapiskat, Kashechewan and Fort Albany First Nations involved deliberating a series of tradeoffs. Could you listen to the radio while toasting a piece of bread? How many Christmas lights could you connect before nothing else was usable? Was there enough power to open a new school? 

The communities wanted a safe, reliable, clean alternative, with Manitoba’s clean energy illustrating regional potential, too. So did their chiefs, which is why they passed a resolution in 1996 to connect the area to Ontario’s grid, not just for basic necessities but to facilitate growth and development, and improve their communities’ quality of life. 

The idea was unthinkable at the time — scorned and dismissed by those who held the keys to Ontario’s (electrical) power, much like independent power projects can be in other jurisdictions. Even some in the community didn’t fully understand it. When the idea was first proposed at a gathering of Nishnawbe Aski Nation, which represents 49 First Nations, one attendee said the only way he could picture the connection was as “a little extension cord running through the bush from Moosonee.” 

But the leadership of Attawapiskat, Kashechewan and Fort Albany First Nations had been dreaming and planning. In 1997, along with members of Taykwa Tagamou and Moose Cree First Nations, they created the first, and thus far only, fully Indigenous-owned energy company in Canada: Five Nations Energy Inc., as partnerships like an OPG First Nation hydro project would later show in action, too. 

Over the next five years, the organization built Omushkego Ishkotayo, the Cree name for the Western James Bay transmission line: “Omushkego” refers to the Swampy Cree people, and “Ishkotayo” to hydroelectric power, while other regions were commissioning new BC generating stations in parallel. The 270-kilometre-long transmission line is in one of the most isolated regions of Ontario, one that can only be accessed by plane, except for a few months in winter when ice roads are strong enough to drive on. The project went online in 2001, bringing reliable power to over 7,000 people who were previously underserved by the province’s energy providers. It also, somewhat controversially, enabled Ontario’s first diamond mine in Attawapiskat territory.

The future the First Nations created 25 years ago is blissfully quiet, now that the diesel generators are shut off. “When the power went on, you could hear the birds,” Patrick Chilton, the CEO of Five Nations Energy, said with a smile. “Our communities were glowing.”

Power, politics and money: Five Nations Energy needed government, banks and builders on board
Chilton took over in 2013 after the former CEO, his brother Ed, passed away. “This was all his idea,” Chilton told The Narwhal in a conversation over Zoom from his office in Timmins, Ont. The company’s story has never been told before in full, he said, because he felt “vulnerable” to the forces that fought against Omushkego Ishkotayo or didn’t understand it, a dynamic underscored by Canada’s looming power problem reporting in recent years. 

The success of Five Nations Energy is a tale of unwavering determination and imagination, Chilton said, and it started with his older brother. “Ed was the first person who believed a transmission line was possible,” he said.

In a Timmins Daily Press death notice published July 2, 2013, Ed Chilton is described as having “a quiet but profound impact on the establishment of agreements and enterprises benefitting First Nations peoples and their lands.” Chilton doesn’t describe him that way, exactly. 

“If you knew my brother, he was very stubborn,” he said. A certified engineering technologist, Ed was a visionary whose whole life was defined by the transmission line. He was the first to approach the chiefs with the idea, the first to reach out to energy companies and government officials and the one who persuaded thousands of people in remote, underserved communities that it was possible to bring power to their region.

After that 1996 meeting of Nishnawbe Aski Nation, there came a four-year-long effort to convince the rest of Ontario, and the country, the project was possible and financially viable. The chiefs of the five First Nations took their idea to the halls of power: Queen’s Park, Parliament Hill and the provincial power distributor Hydro One (then Ontario Hydro). 

“All of them said no,” Chilton said. “They saw it as near to impossible — the idea that you could build a transmission line in the ‘swamp,’ as they called it.” The Five Nations Energy team kept a document at the time tracking how many times they heard no; it topped out at 37. 

One of the worst times was in 1998, at a meeting on the 19th floor of the Ontario Hydro building in the heart of downtown Toronto. There, despite all their preparation and planning, a senior member of the Ontario Hydro team told Chilton, Martin and other chiefs “you’ll build that line over my dead body,” Chilton recalled. 

At the time, Chilton said, Ontario Hydro was refusing to cooperate: unwilling to let go of its monopoly over transmission lines, but also saying it was unable to connect new houses in the First Nations to diesel generators it said were at maximum capacity. (Ontario Hydro no longer exists; Hydro One declined to comment.)

“There’s always naysayers no matter what you’re doing,” Martin said. “What we were doing had never been done before. So of course people were telling us how we had never managed something of this size or a budget of this size.” 

“[Our people] basically told them to blow it up your ass. We can do it,” Chilton said.

So the chiefs of the five nations did something they’d never done before: they went to all of the big banks and many, many charitable foundations trying to get the money, a big ask for a project of this scale, in this location. Without outside support, their pitch was that they’d build it themselves.

This was the hardest part of the process, said Lawrence Martin, the former Grand Chief of Mushkegowuk Tribal Council and a member of the Five Nations Energy board. “We didn’t know how to finance something like this, to get loans,” he told The Narwhal. “That was the toughest task for all of us to achieve.”

Eventually, they got nearly $50 million in funding from a series of financial organizations including the Bank of Montreal, Pacific and Western Capital, the Northern Ontario Heritage Fund Corporation (an Ontario government agency) and the engineering and construction company SNC Lavalin, which did an assessment of the area and deemed the project viable. 

And in 1999, Ed Chilton, other members of the Chilton family and the chiefs were able to secure an agreement with Ontario Hydro that would allow them to buy electricity from the province and sell it to their communities. 

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US SF6 Emissions Decline as NOAA analysis and EPA mitigation show progress, with atmospheric measurements and Greenhouse Gas Reporting verifying reductions from the electric power grid; sulfur hexafluoride's extreme global warming potential underscores inventory improvements.

Key Points

A documented drop in US sulfur hexafluoride emissions, confirmed by NOAA atmospheric data and EPA reporting reforms.

✅ NOAA towers and aircraft show 2007-2018 decline

✅ EPA reporting and utility mitigation narrowed inventory gaps

✅ Winter leaks and servicing signal further reduction options

A new NOAA analysis shows U.S. emissions of the super-potent greenhouse gas sulfur hexafluoride (SF6) have declined between 2007-2018, likely due to successful mitigation efforts by the Environmental Protection Agency (EPA) and the electric power industry, with attention to SF6 in the power industry across global markets. 

At the same time, significant disparities that existed previously between NOAA’s estimates, which are based on atmospheric measurements, and EPA’s estimates, which are based on a combination of reported emissions and industrial activity, have narrowed following the establishment of the EPA's Greenhouse Gas Reporting Program. The findings, published in the journal Atmospheric Chemistry and Physics, also suggest how additional emissions reductions might be achieved. 

SF6 is most commonly used as an electrical insulator in high-voltage equipment that transmits and distributes electricity, and its emissions have been increasing worldwide as electric power systems expand, even as regions hit milestones like California clean energy surpluses in recent years. Smaller amounts of SF6 are used in semiconductor manufacturing and in magnesium production. 

SF6 traps 25,000 times more heat than carbon dioxide over a 100-year time scale for equal amounts of emissions, and while CO2 emissions flatlined in 2019 globally, that comparison underscores the potency of SF6. That means a relatively small amount of the gas can have a significant impact on climate warming. Because of its extremely large global warming potential and long atmospheric lifetime, SF6 emissions will influence Earth’s climate for thousands of years.

In this study, researchers from NOAA’s Global Monitoring Laboratory, as record greenhouse gas concentrations drive demand for better data, working with colleagues at EPA, CIRES, and the University of Maryland, estimated U.S. SF6 emissions for the first time from atmospheric measurements collected at a network of tall towers and aircraft in NOAA’s Global Greenhouse Gas Reference Network. The researchers provided an estimate of SF6 emissions independent from the EPA’s estimate, which is based on reported SF6 emissions for some industrial facilities and on estimated SF6 emissions for others.

“We observed differences between our atmospheric estimates and the EPA’s activity-based estimates,” said study lead author Lei Hu, a Global Monitoring Laboratory researcher who was a CIRES scientist at the time of the study. “But by closely collaborating with the EPA, we were able to identify processes potentially responsible for a significant portion of this difference, highlighting ways to improve emission inventories and suggesting additional emission mitigation opportunities, such as forthcoming EPA carbon capture rules for power plants, in the future.” 

In the 1990s, the EPA launched voluntary partnerships with the electric power, where power-sector carbon emissions are falling as generation shifts, magnesium, and semiconductor industries to reduce SF6 emissions after the United States recognized that its emissions were significant. In 2011, large SF6 -emitting facilities were required to begin tracking and reporting their emissions under the EPA Greenhouse Gas Reporting Program. 

Hu and her colleagues documented a decline of about 60 percent in U.S. SF6 emissions between 2007-2018, amid global declines in coal-fired power in some years—equivalent to a reduction of between 6 and 20 million metric tons of CO2 emissions during that time period—likely due in part to the voluntary emission reduction partnerships and the EPA reporting requirement. A more modest declining trend has also been reported in the EPA’s national inventories submitted annually under the United Nations Framework Convention on Climate Change. 

Examining the differences between the NOAA and EPA independent estimates, the researchers found that the EPA’s past inventory analyses likely underestimated SF6 emissions from electrical power transmission and distribution facilities, and from a single SF6 production plant in Illinois. According to Hu, the research collaboration has likely improved the accuracy of the EPA inventories. The 2023 draft of the EPA’s U.S. Greenhouse Gas Emissions and Sinks: 1990-2021 used the results of this study to support revisions to its estimates of SF6 emissions from electrical transmission and distribution. 

The collaboration may also lead to improvements in the atmosphere-based estimates, helping NOAA identify how to expand or rework its network to better capture emitting industries or areas with significant emissions, according to Steve Montzka, senior scientist at GML and one of the paper’s authors.

Hu and her colleagues also found a seasonal variation in SF6 emissions from the atmosphere-based analysis, with higher emissions in winter than in summer. Industry representatives identified increased servicing of electrical power equipment in the southern states and leakage from aging brittle sealing materials in the equipment in northern states during winter as likely explanations for the enhanced wintertime emissions—findings that suggest opportunities for further emissions reductions.

“This is a great example of the future of greenhouse gas emission tracking, where inventory compilers and atmospheric scientists work together to better understand emissions and shed light on ways to further reduce them,” said Montzka.

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Coinmint Plattsburgh Dispute spotlights cryptocurrency mining, hydropower electricity rates, a $1M security deposit, Public Service Commission rulings, municipal utility policies, and seasonal migration to Massena data centers as Bitcoin price volatility pressures operations.

Key Points

Legal and energy-cost dispute over crypto mining, a $1,019,503 deposit, and operations in Plattsburgh and Massena.

✅ PSC allows higher rates and requires large security deposits.

✅ Winter electricity spikes drove a $1M deposit calculation.

✅ Coinmint shifted capacity to Massena data centers.

A few years ago, there was a lot of buzz about the North Country becoming the next Silicon Valley of cryptocurrency, even as Maine debated a 145-mile line that could reshape regional power flows. One of the companies to flock here was Coinmint. The cryptomining company set up shop in Plattsburgh in 2017 and declared its intentions to be a good citizen.

Today, Coinmint is fighting a legal battle to avoid paying the city’s electric utility more than $1 million owed for a security deposit. In addition to that dispute, a local property manager says the firm was evicted from one of its Plattsburgh locations.

Companies like Coinmint chose to come to the North Country because of the relatively low electricity prices here, thanks in large part to the hydropower dam on the St. Lawrence River in Massena, and regionally, projects such as the disputed electricity corridor have drawn attention to transmission costs and access. Coinmint operates its North Country Data Center facilities in Plattsburgh and Massena. In both locations, racks of computer servers perform complex calculations to generate cryptocurrency, such as bitcoin.

When cryptomining began to take off in Plattsburgh, the cost of one bitcoin was skyrocketing. That brought hype around the possibility of big business and job creation in the North Country. But cryptomininers like Coinmint were using massive amounts of energy in the winter of 2017-2018, and that season, electric bills of everyday Plattsburgh residents spiked.

Many cryptomining firms operate in a state of flux, beholden to the price of Bitcoin and other cryptocurrencies, even as the end to the 'war on coal' declaration did little to change utilities' choices. When the price of one bitcoin hit $20,000 in 2017, it fell by 30% just days later. That’s one reason why the price of electricity is so critical for companies like Coinmint to turn a profit. 

Plattsburgh puts the brakes on “cryptocurrency mining”
In early 2018, Plattsburgh passed a moratorium on cryptocurrency mining operations, after residents complained of higher-than-usual electric bills.

“Your electric bill’s $100, then it’s at $130. Why? It’s because these guys that are mining the bitcoins are riding into town, taking advantage of a situation,” said resident Andrew Golt during a 2018 public hearing.

Coinmint aimed to assuage the worries of residents and other businesses. “At the end of the day we want to be a good citizen in whatever communities we’re in,” Coinmint spokesman Kyle Carlton told NCPR at that 2018 meeting.

“We’re open to working with those communities to figure out whatever solutions are going to work.”

The ban was lifted in Feb. 2019. However, since it didn’t apply to companies that were already mining cryptocurrency in Plattsburgh, Coinmint has operated in the city all along.

Coinmint challenges attempt to protect ratepayers
New rules passed by the New York Public Service Commission in March 2018 allow municipal power authorities including Plattsburgh’s to charge big energy users such as Coinmint higher electricity rates, amid customer backlash in other utility deals. The new rules also require them to put down a security deposit to ensure their bills get paid.

But Coinmint disputes that deposit charge. The company has been embroiled in a legal fight for nearly a year against Plattsburgh Municipal Lighting Department (PMLD) in an attempt to avoid paying the electric utility’s security deposit bill of $1,019,503. That bill is based on an estimate of what would cover two months of electricity use if a company were to leave town without paying its electric bills.

Coinmint would not discuss the dispute on the record with NCPR. Legal documents show the firm argues the deposit charge is inflated, based on a flawed calculation resulting in a charge hundreds of thousands of dollars higher than what it should be.

“Essentially they’re arguing that they should only have to put up some average of their monthly bills without accounting for the fact that winter bills are significantly higher than the average,” said Ken Podolny, an attorney representing the Plattsburgh utility.

The company took legal action in February 2019 against PMLD in the hopes New York’s energy regulator, the Public Service Commission, would agree with Coinmint that the deposit charge was too high. An informal commission hearing officer disagreed, and ruled in October the charge was calculated correctly.

Coinmint appealed the ruling in November and a hearing on the appeal could come as soon as February.

Less than a week after Coinmint lost its initial challenge of the deposit charge, the company made a splashy announcement trumpeting its plans to “migrate its Plattsburgh, New York infrastructure to its Massena, New York location for the 2019-2020 winter season.”

The announcement made no mention of the appeal or the recent ruling against Coinmint. The company attributed its new plan to “exceptionally-high” electricity rates in Plattsburgh, as hydropower transmission projects elsewhere in New England faced their own controversies. 

"We recognize some in the Plattsburgh community have blamed our operation for pushing rates higher for everyone so, while we disagree with that assessment, we hope this seasonal migration will have a positive impact on rates for all our neighbors,” said Coinmint cofounder Prieur Leary in the press statement.

“In the event that doesn't happen, we trust the community will look for the real answers for these high costs." Prieur Leary has since been removed from the corporate team page on the company’s website.

The company still operates in Plattsburgh at one of its locations in the city. As for staff, while at least two Coinmint employees have moved from Plattsburgh to Massena, where the company operates a data center inside a former Alcoa aluminum plant, it is unclear how many people in total have made the move.

Coinmint left its second Plattsburgh location in 2019. The company would not discuss that move on the record, yet the circumstances of the departure are murky.

The local property manager of the industrial park site told NCPR, “I have no comment on our evicted tenant Coinmint.” The property owner, California’s Karex Property Management Services, also would not comment regarding the situation, noting that “all staff have been told to not discuss anything regarding our past tenant Coinmint.”

Today, Bitcoin and other cryptocurrencies are worth a fraction of what they were back in 2017 when Coinmint came to the North Country, and now, amid a debate over Bitcoin's electricity use shaping market sentiment, the future of the entire industry here remains uncertain.

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Nova Scotia Clean Power Plan 2030 pivots from the Atlantic Loop, scaling wind and solar, leveraging Muskrat Falls via the Maritime Link, adding battery storage and transmission upgrades to decarbonize grid and retire coal.

Key Points

Nova Scotia's 2030 roadmap to replace coal with wind, solar, hydro imports, storage, and grid upgrades.

✅ 1,000 MW onshore wind to supply 50% by 2030

✅ Battery storage sites and New Brunswick transmission upgrades

✅ Continued Muskrat Falls imports via Maritime Link

Nova Scotia is abandoning the proposed Atlantic Loop in its plan to decarbonize its electrical grid by 2030 amid broader discussions about independent grid planning nationwide, Natural Resources and Renewables Minister Tory Rushton has announced.

The province unveiled its clean power plan calling for 30 per cent more wind power and five per cent more solar energy in the Nova Scotia power grid over the coming years. Nova Scotia's plan relies on continued imports of hydroelectricity from the Muskrat Falls project in Labrador via the Emera-owned Maritime Link.

Right now Nova Scotia generates 60 per cent of its electricity by burning fossil fuels, mostly coal, and some increased use of biomass has also factored into the mix. Nova Scotia Power must close its coal plants by 2030 when 80 per cent of electricity must come from renewable sources in order reduce greenhouse gas emissions causing climate changes.

Critics have urged reducing biomass use in electricity generation across the province.

The clean power plan calls for an additional 1,000 megawatts of onshore wind by 2030 which would then generate 50 per cent of the the province's electricity, while also advancing tidal energy in the Bay of Fundy as a complementary source.    

"We're taking the things already know and can capitalize on while we build them here in Nova Scotia," said Rushton, "More importantly, we're doing it at a lower rate so the ratepayers of Nova Scotia aren't going to bear the brunt of a piece of equipment that's designed and built and staying in Quebec."

The province says it can meet its green energy targets without importing Quebec hydro through the Atlantic loop. It would have brought hydroelectric power from Quebec into New Brunswick and Nova Scotia via upgraded transmission links. But the government said the cost is prohibitive, jumping to $9 billion from nearly $3 billion three years ago with no guarantee of a secure supply of power from Quebec.

"The loop is not viable for 2030. It is not necessary to achieve our goal," said David Miller, the provincial clean energy director. 

Miller said the cost of $250 to $300 per megawatt hour was five times higher than domestic wind supply.

Some of the provincial plan includes three new battery storage sites and expanding the transmission link with New Brunswick. Both were Nova Scotia Power projects paused by the company after the Houston government imposed a cap on the utility's rate increased in the fall of 2022.

The province said building the 345-kilovolt transmission line between Truro, N.S., and Salisbury, N.B., and an extension to the Point Lepreau Nuclear Generating Station, as well as aligning with NB Power deals for Quebec electricity underway, would enable greater access to energy markets.

Miller says Nova Scotia Power has revived both.

Nova Scotia Power did not comment on the new plan, but Rushton spoke for the company.

"All indications I've had is Nova Scotia Power is on board for what is taking place here today," he said.

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