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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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Puerto Rico Tesla Solar Power enables resilient microgrids using batteries, renewable energy, and energy storage to rebuild the hurricane-damaged grid, reduce fossil fuels, cut costs, and accelerate recovery with scalable solar-plus-storage solutions.

Key Points

A solar-plus-storage plan using Tesla microgrids and batteries to restore Puerto Rico's cleaner, resilient power.

✅ Microgrids cut diesel reliance and harden critical facilities.

✅ Batteries stabilize the grid and shave peak demand costs.

✅ Scalable solar enables faster, modular disaster recovery.

Puerto Rico’s governor Ricardo Rossello has said that he will speak to Elon Musk after the Tesla inventor said his innovative solar and battery systems could be used to restore electricity on the island.

Mr Musk was mentioned in a tweet, referencing an article discussing ways to restore Puerto Rico’s power grid, which was knocked out by Hurricane Maria on September 20.

Restoring the ageing and already-weakened network has proved slow: as of Friday 90 per cent of the island remained without power. The island’s electricity company was declared bankrupt in July.

Mr Musk was asked: “Could @ElonMusk go in and rebuild #PuertoRico’s electricity system with independent solar & battery systems?”

The South African entrepreneur replied: “The Tesla team has done this for many smaller islands around the world, but there is no scalability limit, so it can be done for Puerto Rico too.

“Such a decision would be in the hands of the PR govt, PUC, any commercial stakeholders and, most importantly, the people of PR.”

His suggestion was seized upon by Mr Rossello, who then tweeted: “@ElonMusk Let's talk. Do you want to show the world the power and scalability of your #TeslaTechnologies?

“PR could be that flagship project.”

Mr Musk replied that he was happy to talk.

Restoring power to the battered island is a priority for the government, and improving grid resilience remains critical, with hospitals still running on generators and the 3.5 million people struggling with a lack of refrigeration or air conditioning.

Radios broadcast messages advising people how to keep their insulin cool, and doctors are concerned about people not being able to access dialysis.

And, with its power grid wiped out, the Caribbean island could totally rethink the way it meets its energy needs, drawing on examples like a resilient school microgrid built locally. 

“This is an opportunity to completely transform the way electricity is generated in Puerto Rico and the federal government should support this,” said Judith Enck, the former administrator for the region with the environmental protection agency.

“They need a clean energy renewables plan and not spending hurricane money propping up the old fossil fuel infrastructure.”

Forty-seven per cent of Puerto Rico’s power needs were met by burning oil last year - a very expensive and outdated method of electricity generation. For the US as a whole, petroleum accounted for just 0.3 per cent of all electricity generated in 2016 even as the grid isn’t yet running on 100% renewable energy nationwide.

The majority of the rest of Puerto Rico’s energy came courtesy of coal and natural gas, with renewables, which later faced pandemic-related setbacks, accounting for only two per cent of electricity generation.

“In that time of extreme petroleum prices, the utility was borrowing money and buying oil in order to keep those plants operating,” said Luis Martinez, a lawyer at natural resources defense council and former special aide to the president of Puerto Rico’s environmental quality board.

“That precipitated the bankruptcy that followed. It was in pretty poor shape before the storm. Once the storm got there, it finished the job.”

But Mr Martinez told the website Earther that it might be difficult to secure the financing for rebuilding Puerto Rico with renewables from FEMA (Federal Emergency Management Agency) funds.

“A lot of distribution lines were on wood poles,” he said.

“Concrete would make them more resistant to winds, but that would potentially not be authorized under the use of FEMA funds.

"We’re looking into if some of those requirements can be waived so rebuilding can be more resilient.”

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California fossil fuel grid reliability plan addresses heat wave demand, rolling blackouts, and grid stability by temporarily procuring gas generation while accelerating renewables, storage, and transmission to meet clean energy and carbon-neutral targets by 2045.

Key Points

A stop-gap policy to prevent blackouts by buying fossil power while fast-tracking renewables, storage, and grid upgrades.

✅ Temporary procurement of gas to avoid rolling blackouts

✅ Accelerates renewables, storage, transmission permitting

✅ Aims for carbon neutrality by 2045 without new gas plants

California wants to quit fossil fuels. Just not yet Faced with a fragile electrical grid and the prospect of summertime blackouts, the state agreed to put aside hundreds of millions of dollars to buy power from fossil fuel plants that are scheduled to shut down as soon as next year.

That has prompted a backlash from environmental groups and lawmakers who say Democratic Gov. Gavin Newsom’s approach could end up extending the life of gas plants that have been on-track to close for more than a decade and could threaten the state’s goal to be carbon neutral by 2045.

“The emphasis that the governor has been making is ‘We’re going to be Climate Leaders; we’re going to do 100 percent clean energy; we’re going to lead the nation and the world,’” said V. John White, executive director of the Sacramento-based Center for Energy Efficiency and Renewable Technologies, a non-profit group of environmental advocates and clean energy companies. “Yet, at least a part of this plan means going the opposite direction.”

That plan was a last-minute addition to the state’s energy budget, which lawmakers in the Democratic-controlled Legislature reluctantly passed. Backers say it’s necessary to avoid the rolling blackouts like the state experienced during a heat wave in 2020. Critics see a muddled strategy on energy, and not what they expected from a nationally ambitious governor who has made climate action a centerpiece of his agenda.

The legislation, which some Democrats labeled as “lousy” and “crappy,” reflects the reality of climate change. Heat waves are already straining power capacity, and the transition to cleaner energy isn’t coming fast enough to meet immediate needs in the nation’s most populous state.

Officials have warned that outages would be possible this summer, as the grid faces heat wave tests again, with as many as 3.75 million California homes losing power in a worst-case scenario of a West-wide heat wave and insufficient electrical supplies, particularly in the evenings.

It’s also an acknowledgment of the political reality that blackout politics are hazardous to elected officials, even in a state dominated by one party.

Newsom emphasized that the money to prop up the power grid, part of a larger $4.3 billion energy spending package, is meant as a stop-gap measure. The bill allows the Department of Water Resources to spend $2.2 billion on “new emergency and temporary generators, new storage systems, clean generation projects, and funding on extension of existing generation operations, if any occur,” the governor said in a statement after signing the bill.

“Action is needed now to maintain reliable energy service as the State accelerates the transition to clean energy,” Newsom said.

Following the signing, the governor called for the state California Air Resources Board to add a set of ambitious goals to its 2022 Scoping Plan, which lays out California’s path for reducing carbon emissions.

Among Newsom’s requested changes is a move away from fossil fuels, asking state agencies to prepare for an energy transition that avoids the need for new natural gas plants.

Alex Stack, a spokesman for the governor, said in a statement that California has been a global leader in reducing pollution and exporting energy policies across Western states, and pointed to Newsom’s recent letter to the Air Resources Board as well as one sent to President Joe Biden outlining how states can work with the federal government to combat climate change.

“California took action to streamline permitting for clean energy projects to accelerate the build out of clean energy that is needed to meet our climate goals and help maintain reliability in the face of extreme heat, wildfires, and drought,” Stack said.

But the prospect of using state money on fossil fuel power, even in the short term, has raised ire among the state’s many environmental advocacy groups, and raised questions about whether California will be able to achieve its goals.

“What is so frustrating about an energy bill like this is that we are at crunch time to meet these goals,” said Mary Creasman, CEO of California Environmental Voters. “And we’re investing a scale of funding into things that exacerbate those goals.”
 
Emmanuelle Chriqui and Mary Creasman speak during the 2021 Environmental Media Association IMPACT Summit at Pendry West Hollywood on September 2, 2021 in West Hollywood, California. | Jesse Grant/Getty Images for Environmental Media Association

With climate change-induced drought and high temperatures continuing to ravage the West, California anticipates the demand on the grid will only continue to grow. Despite more than a decade of bold posturing and efforts to transition to solar, wind and hydropower, the state worries it doesn’t have enough renewable energy sources on hand to keep the power on in an emergency right now, amid a looming shortage that will test reliability.

The specter of power outages poses a hazard to Newsom, and Democrats in general, especially ahead of November. While the governor is widely expected to sail to reelection, rolling blackouts are a serious political liability — in 2003, they were the catalyst for recalling Democratic Gov. Gray Davis. A lack of power isn’t just about people sweating in the dark, said Steven Maviglio, a longtime Democratic consultant who served as communications director for Davis, it can affect businesses, travel and have an outsized impact on the economy.

It behooves any state official to keep the power on, but, unlike Davis, Newsom is under serious pressure to make sure the state also adheres to its climate goals.

“Gavin Newsom’s brand is based on climate change and clean air, so it’s a little more difficult for him to say ‘well that’s not as important as keeping the power on,’” Maviglio said.

The same bill effectively ends local government control over those projects, for the time being. It hopes to speed up the state’s production of renewable energy sources by giving exclusive authority over the siting of those projects to a single state agency for the next seven years.

Environmental advocates say the state is now scrambling to address an issue they’ve long known was coming. In 2010, California officials set a schedule to retire a number of coastal gas plants that rely on what’s known as once-through cooling systems, which are damaging to the environment, especially marine life, even as regulators weigh more power plants to maintain reliability today. Many of those plants have been retired since 2010, but others have received extensions.

The remaining plants have various deadlines for when they must cease operations, with the soonest being the end of 2023.

Also at issue is the embattled Diablo Canyon nuclear power plant, California’s largest electricity source. The Pacific Gas & Electric-owned plant is scheduled to close in 2025, but the strain on the grid has officials considering the possibility of seeking an extension. Newsom said earlier this spring he would be open to extending the life of the plant. Doing so would also require federal approval.

Al Muratsuchi stands and talks into a microphone with a mask on. 
Assemblyman Al Muratsuchi speaks during an Assembly session in Sacramento, Calif., on Jan. 31, 2022. | Rich Pedroncelli/AP Photo

The International Brotherhood of Electrical Workers 1245, a labor union, sees the energy package as a way to preserve Diablo Canyon, and jobs at the plant.

“The value to 1245 PG&E members at Diablo Canyon is clear — funding to keep the plant open,” the union said of the bill.

Assemblymember Al Muratsuchi (D-Los Angeles) criticized the bill as “crappy” when it came to the floor in late June, describing it as “a rushed, unvetted and fossil-fuel-heavy response” to the state’s need to bolster the grid.

“The state has had over 12 years to procure and bring online renewable energy generation to replace these once through cooling gas power plants,” Muratsuchi said. “Yet, the state has reneged on its promise to shut down these plants, not once, but twice already.”

Not all details of the state’s energy budget are final. Lawmakers still have $3.8 billion to allocate when they return on Aug. 1 for the final stretch of the year.

Creasman, at California Environmental Voters, said she wants lawmakers to set specific guidelines for how and where it will spend the $2.2 billion when they return in August to dole out the remaining money in the budget. Newsom and legislators also need to ensure that this is the last time California has to spend money on fossil fuel, she said.

“Californians deserve to see what the plan is to make sure we’re not in this position again of having to choose between making climate impacts worse or keeping our lights on,” Creasman said. “That’s a false choice.”

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Bay of Fundy Tidal Energy advances as Nova Scotia permits Jupiter Hydro to test floating barge platforms with helical turbines in Minas Passage, supporting renewable power, grid-ready pilots, and green jobs in rural communities.

Key Points

A Nova Scotia tidal energy project using helical turbines to generate clean power and create local jobs.

✅ Permits enable 1-2 MW prototypes near Minas Passage

✅ Floating barge platforms with patented helical turbines

✅ PPA at $0.50/kWh with Nova Scotia Power

An Alberta-based company has been granted permission to try to harness electricity from the powerful tides of the Bay of Fundy.

Nova Scotia has issued two renewable energy permits to Jupiter Hydro.

Backers have long touted the massive energy potential of Fundy's tides -- they are among the world's most powerful -- but large-scale commercial efforts to harness them have borne little fruit so far, even as a Scottish tidal project recently generated enough power to supply nearly 4,000 homes elsewhere.

The Jupiter application says it will use three "floating barge type platforms" carrying its patented technology. The company says it uses helical turbines mounted as if they were outboard motors.

"Having another company test their technology in the Bay of Fundy shows that this early-stage industry continues to grow and create green jobs in our rural communities," Energy and Mines Minister Derek Mombourquette said in a statement.

The first permit allows the company to test a one-megawatt prototype that is not connected to the electricity grid.

The second -- a five-year permit for up to two megawatts -- is renewable if the company meets performance standards, environmental requirements and community engagement conditions.

Mombourquette also authorized a power purchase agreement that allows the company to sell the electricity it generates to the Nova Scotia grid through Nova Scotia Power for 50 cents per kilowatt hour.

On its web site, Jupiter says it believes its approach "will prove to be the most cost effective marine energy conversion technology in the world," even as other regional utilities consider initiatives like NB Power's Belledune concept for turning seawater into electricity.

The one megawatt unit would have screws which are about 5.5 metres in diameter.

The project is required to obtain all other necessary approvals, permits and authorizations.

It will be located near the Fundy Ocean Research Center for Energy in the Minas Passage and will use existing electricity grid connections.

A study commissioned by the Offshore Energy Research Association of Nova Scotia says by 2040, the tidal energy industry could contribute up to $1.7 billion to Nova Scotia's gross domestic product and create up to 22,000 full-time jobs, a transition that some argue should be planned by an independent body to ensure reliability.

Last month, Nova Scotia Power said it now generates 30 per cent of its power from renewables, as the province moves to increase wind and solar projects after abandoning the Atlantic Loop.

The utility says 18 per cent came from wind turbines, nine per cent from hydroelectric and tidal turbines and three per cent by burning biomass across its fleet.

However, over half of the province's electrical generation still comes from the burning of coal or petroleum coke, even as environmental advocates push to reduce biomass use in the mix. Another 13 per cent come from burning natural gas and five per cent from imports.

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Illinois NextGrid redefines utility, customer, and provider roles with grid modernization, DER valuation, upfront rebates, net metering reform, and non-wires alternatives, leveraging rooftop solar, batteries, and performance signals to enhance reliability and efficiency.

Key Points

Illinois NextGrid is an ICC roadmap to value DER and modernize the grid with rebates and non-wires solutions.

✅ Upfront Value-of-DER rebates reward location, time, and performance.

✅ Locational DER reduce peak demand and defer wires and substations.

✅ Encourages non-wires alternatives and data-driven utility planning.

How does the electric utility fit in to a rapidly-evolving energy system? That’s what the Illinois Commerce Commission is trying to determine with its new effort, "NextGrid". Together, we’re rethinking the roles of the utility, the customer, and energy solution providers in a 21st-century digital grid landscape.

In some ways, NextGrid will follow in the footsteps of New York’s innovative Reforming the Energy Vision process, a multi-year effort to re-examine how electric utilities and customers interact. A new approach is essential to accelerating the adoption of clean energy technologies and building a smarter electricity infrastructure in the state.

Like REV, NextGrid is gaining national attention for stakeholder-driven processes to reveal new ways to value distributed energy resources (DER), like rooftop solar and batteries. New York and Illinois’ efforts also seek alternatives, such as virtual power plants, to simply building more and more wires, poles, and power plants to meet the energy needs of tomorrow.

Yet, Illinois is may go a few steps beyond New York, creating a comprehensive framework for utilities to measure how DER are making the grid smarter and more efficient. Here is what we know will happen so far.

On Wednesday, April 5, at the second annual Grid Modernization Forum in Chicago, I’ll be discussing why these provisions could change the future of our energy system, including insights on grid modernization affordability for stakeholders.

Value of distributed energy

The Illinois Commerce Commission’s NextGrid plans grew out of the recently-passed future energy jobs act, a landmark piece of climate and energy policy that was widely heralded as a bipartisan oddity in the age of Trump. The Future Energy Jobs Act will provide significant new investments in renewables and energy efficiency over the next 13 years, redefine the role and value of rooftop solar and batteries on the grid, and lead to significant greenhouse gas emission reductions.

NextGrid will likely start laying the groundwork for valuing distributed energy resources (DER) as envisioned by the Future Energy Jobs Act, which introduces the concept of a new rebate. Illinois currently has a net metering policy, which lets people with solar panels sell their unused solar energy back to the grid to offset their electric bill. Yet the net metering policy had an arbitrary “cap,” or a certain level after which homes and businesses adding solar panels would no longer be able to benefit from net metering.

Although Illinois is still a few years away from meeting that previous “cap,” when it does hit that level, the new policy will ensure additional DER will still be rewarded. Under the new plan, the Value-of-DER rebate will replace net metering on the distribution portion of a customer’s bill (the charge for delivering electricity from the local substation to your house) with an upfront payment, which credits the customer for the value their solar provides to the local grid over the system’s life. Net metering for the energy supply portion of the bill would remain – i.e. homes and businesses would still be able to offset a significant portion of their electric bills by selling excess energy.

What is unique about Illinois’ approach is that the rebate is an upfront payment, rather than on ongoing tariff or reduced net metering compensation, for example. By allowing customers to get paid for the value solar provides to the system at the time it is installed, in the same way new wires, poles, and transformers would, this upfront payment positions DER investments as equally or more beneficial to customers and the electric grid. This is a huge step not only for regulators, but for utilities as well, as they begin to see distributed energy as an asset to the system.

This is a huge step for utilities, as they begin to see distributed energy as an asset to the system.

The rebate would also factor-in the variables of location, time, and performance of DER in the rebate formula, allowing for a more precise calculation of the value to the grid. Peak electricity demand can stress the local grid, causing wear and tear and failure of the equipment that serve our homes and businesses. Power from DER during peak times and in certain areas can alleviate those stresses, therefore providing a greater value than during times of average demand.

In addition, factoring-in the value of performance will take into account the other functions of distributed energy that help keep the lights on. For example, batteries and advanced inverters can provide support for helping avoid voltage fluctuations that can cause outages and other costs to customers.

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Smart EV Charging orchestrates vehicle-to-grid (V2G), demand response, and fast charging to balance the power grid, integrating renewables, electrolyzers for hydrogen, and megawatt chargers for fleets with advanced control and co-optimization.

Key Points

Smart EV charging coordinates EV load to stabilize the grid, cut peaks, and integrate renewable energy efficiently.

✅ Reduces peak demand via coordinated, flexible load control

✅ Enables V2G services with renewables and battery storage

✅ Supports megawatt fast charging for heavy-duty fleets

As electric vehicle (EV) sales continue to rev up in the United States, the power grid is in parallel contending with the greatest transformation in its 100-year history: the large-scale integration of renewable energy and power electronic devices. The expected expansion of EVs will shift those challenges into high gear, causing cities to face gigawatt-growth in electricity demand, as analyses of EV grid impacts indicate, and higher amounts of variable energy.

Coordinating large numbers of EVs with the power system presents a highly complex challenge. EVs introduce variable electrical loads that are highly dependent on customer behavior. Electrified transportation involves co-optimization with other energy systems, like natural gas and bulk battery storage, including mobile energy storage flexibility for new operational options. It could involve fleets of automated ride-hailing EVs and lead to hybrid-energy truck stops that provide hydrogen and fast-charging to heavy-duty vehicles.

Those changes will all test the limits of grid integration, but the National Renewable Energy Laboratory (NREL) sees opportunity at the intersection of energy systems and transportation. With powerful resources for simulating and evaluating complex systems, several NREL projects are determining the coordination required for fast charging, balancing electrical supply and demand, and efficient use of all energy assets.

Smart and Not-So-Smart Control
To appreciate the value of coordinated EV charging, it is helpful to imagine the opposite scenario.

"Our first question is how much benefit or burden the super simple, uncoordinated approach to electric vehicle charging offers the grid," said Andrew Meintz, the researcher leading NREL's Electric Vehicle Grid Integration team, as well as the RECHARGE project for smart EV charging. "Then we compare that to the 'whiz-bang,' everything-is-connected approach. We want to know the difference in value."

In the "super simple" approach, Meintz explained that battery-powered electric vehicles grow in market share, exemplified by mass-market EVs, without any evolution in vehicle charging coordination. Picture every employee at your workplace driving home at 5 p.m. and charging their vehicle. That is the grid's equivalent of going 0 to 100 mph, and if it does not wreck the system, it is at least very expensive. According to NREL's Electrification Futures Study, a comprehensive analysis of the impacts of widespread electrification across all U.S. economic sectors, in 2050 EVs could contribute to a 33% increase in energy use during peak electrical demand, underscoring state grid challenges that make these intervals costly when energy reserves are procured. In duck curve parlance, EVs will further strain the duck's neck.

The Optimization and Control Lab's Electric Vehicle Grid Integration bays allow researchers to determine how advanced high power chargers can be added safely and effectively to the grid, with the potential to explore how to combine buildings and EV charging. Credit: Dennis Schroeder, NREL
Meintz's "whiz-bang" approach instead imagines EV control strategies that are deliberate and serve to smooth, rather than intensify, the upcoming demand for electricity. It means managing both when and where vehicles charge to create flexible load on the grid.

At NREL, smart strategies to dispatch vehicles for optimal charging are being developed for both the grid edge, where consumers and energy users connect to the grid, as in RECHARGEPDF, and the entire distribution system, as in the GEMINI-XFC projectPDF. Both projects, funded by the U.S. Department of Energy's (DOE's) Vehicle Technologies Office, lean on advanced capabilities at NREL's Energy Systems Integration Facility to simulate future energy systems.

At the grid edge, EVs can be co-optimized with distributed energy resources—small-scale generation or storage technologies—the subject of a partnership with Eaton that brought industry perspectives to bear on coordinated management of EV fleets.

At the larger-system level, the GEMINI-XFC project has extended EV optimization scenarios to the city scale—the San Francisco Bay Area, to be specific.

"GEMINI-XFC involves the highest-ever-fidelity modeling of transportation and the grid," said NREL Research Manager of Grid-Connected Energy Systems Bryan Palmintier.

"We're combining future transportation scenarios with a large metro area co-simulationPDF—millions of simulated customers and a realistic distribution system model—to find the best approaches to vehicles helping the grid."

GEMINI-XFC and RECHARGE can foresee future electrification scenarios and then insert controls that reduce grid congestion or offset peak demand, for example. Charging EVs involves a sort of shell game, where loads are continually moved among charging stations to accommodate grid demand.

But for heavy-duty vehicles, the load is harder to hide. Electrified truck fleets will hit the road soon, creating power needs for electric truck fleets that translate to megawatts of localized demand. No amount of rerouting can avoid the requirements of charging heavy-duty vehicles or other instances of extreme fast-charging (XFC). To address this challenge, NREL is working with industry and other national laboratories to study and demonstrate the technological buildout necessary to achieve 1+ MW charging stationsPDF that are capable of fast charging at very high energy levels for medium- and heavy-duty vehicles.

To reach such a scale, NREL is also considering new power conversion hardware based on advanced materials like wide-bandgap semiconductors, as well as new controllers and algorithms that are uniquely suited for fleets of charge-hungry vehicles. The challenge to integrate 1+ MW charging is also pushing NREL research to higher power: Upcoming capabilities will look at many-megawatt systems that tie in the support of other energy sectors.

Renewable In-Roads for Hydrogen

At NREL, the drive toward larger charging demands is being met with larger research capabilities. The announcement of ARIES opens the door to energy systems integration research at a scale 10-times greater than current capabilities: 20 MW, up from 2 MW. Critically, it presents an opportunity to understand how mobility with high energy demands can be co-optimized with other utility-scale assets to benefit grid stability.

"If you've got a grid humming along with a steady load, then a truck requires 500 kW or more of power, it could create a large disruption for the grid," said Keith Wipke, the laboratory program manager for fuel cells and hydrogen technologies at NREL.

Such a high power demand could be partially served by battery storage systems. Or it could be hidden entirely with hydrogen production. Wipke's program, with support from the DOE's Hydrogen and Fuel Cell Technologies Office, has been performing studies into how electrolyzers—devices that use electricity to break water into hydrogen and oxygen—could offset the grid impacts of XFC. These efforts are also closely aligned with DOE's H2@Scale vision for affordable and effective hydrogen use across multiple sectors, including heavy-duty transportation, power generation, and metals manufacturing, among others.

"We're simulating electrolyzers that can match the charging load of heavy-duty battery electric vehicles. When fast charging begins, the electrolyzers are ramped down. When fast charging ends, the electrolyzers are ramped back up," Wipke said. "If done smoothly, the utility doesn't even know it's happening."

NREL Researchers Rishabh Jain, Kazunori Nagasawa, and Jen Kurtz are working on how grid integration of electrolyzers—devices that use electricity to break water into hydrogen and oxygen—could offset the grid impacts of extreme fast-charging. Credit: National Renewable Energy Laboratory
As electrolyzers harness the cheap electrons from off-demand periods, a significant amount of hydrogen can be produced on site. That creates a natural energy pathway from discount electricity into a fuel. It is no wonder, then, that several well-known transportation and fuel companies have recently initiated a multimillion-dollar partnership with NREL to advance heavy-duty hydrogen vehicle technologies.

"The logistics of expanding electric charging infrastructure from 50 kW for a single demonstration battery electric truck to 5,000 kW for a fleet of 100 could present challenges," Wipke said. "Hydrogen scales very nicely; you're basically bringing hydrogen to a fueling station or producing it on site, but either way the hydrogen fueling events are decoupled in time from hydrogen production, providing benefits to the grid."

The long driving range and fast refuel times—including a DOE target of achieving 10-minutes refuel for a truck—have already made hydrogen the standout solution for applications in warehouse forklifts. Further, NREL is finding that distributed electrolyzers can simultaneously produce hydrogen and improve voltage conditions, which can add much-needed stability to a grid that is accommodating more energy from variable resources.

Those examples that co-optimize mobility with the grid, using diverse technologies, are encouraging NREL and its partners to pursue a new scale of systems integration. Several forward-thinking projects are reimagining urban mobility as a mix of energy solutions that integrate the relative strengths of transportation technologies, which complement each other to fill important gaps in grid reliability.

The Future of Urban Mobility
What will electrified transportation look like at high penetrations? A few NREL projects offer some perspective. Among the most experimental, NREL is helping the city of Denver develop a smart community, integrated with electrified mobility and featuring automated charging and vehicle dispatch.

On another path to advanced mobility, Los Angeles has embarked on a plan to modernize its electricity system infrastructure, reflecting California EV grid stability goals—aiming for a 100% renewable energy supply by 2045, along with aggressive electrification targets for buildings and vehicles. Through the Los Angeles 100% Renewable Energy Study, the city is currently working with NREL to assess the full-scale impacts of the transition in a detailed analysis that integrates diverse capabilities across the laboratory.

The transition would include the Port of Long Beach, the busiest container port in the United States.

At the port, NREL is applying the same sort of scenario forecasting and controls evaluation as other projects, in order to find the optimal mix of technologies that can be integrated for both grid stability and a reliable quality of service: a mix of hydrogen fuel-cell and battery EVs, battery storage systems, on-site renewable generation, and extreme coordination among everything.

"Hydrogen at ports makes sense for the same reason as trucks: Marine applications have big power and energy demands," Wipke said. "But it's really the synergies between diverse technologies—the existing infrastructure for EVs and the flexibility of bulk battery systems—that will truly make the transition to high renewable energy possible."

Like the Port of Long Beach, transportation hubs across the nation are adapting to a complex environment of new mobility solutions. Airports and public transit stations involve the movement of passengers, goods, and services at a volume exceeding anywhere else. With the transition to digitally connected electric mobility changing how airports plan for the future, NREL projects such as Athena are using the power of high-performance computing to demonstrate how these hubs can maximize the value of passenger and freight mobility per unit of energy, time, and/or cost.

The growth in complexity for transportation hubs has just begun, however. Looking ahead, fleets of ride-sharing EVs, automated vehicles, and automated ride-sharing EV fleets could present the largest effort to manage mobility yet.

A Self-Driving Power Grid
To understand the full impact of future mobility-service providers, NREL developed the HIVE (Highly Integrated Vehicle Ecosystem) simulation framework. HIVE combines factors related to serving mobility needs and grid operations—such as a customer's willingness to carpool or delay travel, and potentially time-variable costs of recharging—and simulates the outcome in an integrated environment.

"Our question is, how do you optimize the management of a fleet whose primary purpose is to provide rides and improve that fleet's dispatch and charging?" said Eric Wood, an NREL vehicle systems engineer.

HIVE was developed as part of NREL's Autonomous Energy Systems research to optimize the control of automated vehicle fleets. That is, optimized routing and dispatch of automated electric vehicles.

The project imagines how price signals could influence dispatch algorithms. Consider one customer booking a commute through a ride-hailing app. Out of the fleet of vehicles nearby—variously charged and continually changing locations—which one should pick up the customer?

Now consider the movements of thousands of passengers in a city and thousands of vehicles providing transportation services. Among the number of agents, the moment-to-moment change in energy supply and demand, and the broad diversity in vendor technologies, "we're playing with a lot of parameters," Wood said.

But cutting through all the complexity, and in the midst of massive simulations, the end goal for vehicle-to-grid integration is consistent:

"The motivation for our work is that there are forecasts for significant load on the grid from the electrification of transportation," Wood said. "We want to ensure that this load is safely and effectively integrated, while meeting the expectations and needs of passengers."

The Port of Long Beach uses a mix of hydrogen fuel-cell and battery EVs, battery storage systems, on-site renewable generation, and extreme coordination among everything. Credit: National Renewable Energy Laboratory
True Replacement without Caveats

Electric vehicles are not necessarily helpful to the grid, but they can be. As EVs become established in the transportation sector, NREL is studying how to even out any bumps that electrified mobility could cause on the grid and advance any benefits to commuters or industry.

"It all comes down to load flexibility," Meintz said. "We're trying to decide how to optimally dispatch vehicle charging to meet quality-of-service considerations, while also minimizing charging costs."

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