Strategy needed to get wave energy rolling

By Westerly News


High Voltage Maintenance Training Online

Our customized live online or in‑person group training can be delivered to your staff at your location.

  • Live Online
  • 12 hours Instructor-led
  • Group Training Available
Regular Price:
$599
Coupon Price:
$499
Reserve Your Seat Today
Ucluelet has the potential to be the wave energy capital of Canada but even getting the first test sites operating is a struggle according to a Vancouver Island based ocean energy expert.

Chris Campbell, executive director of the Ocean Renewable Energy Group, a national organization that serves to coordinate groups researching and investing in ocean energy, is calling on the provincial government to develop a strategy to make wave and tidal energy a reality.

"The problem is, power is too cheap and there are too many choices in B.C.," said Campbell.

He estimates that the cost of producing electricity from wave energy would be approximately $250 to $300 per megawatt.

The problem is, most other sources of electricity produced within the province can be produced for a lot less.

According to the province's Energy Plan, other renewable sources of power such as wind, bioenergy, and run-of-river hydro can all be produced for less than $100 per megawatt.

Even a new large hydro dam would be able to produce electricity for around $60 a megawatt.

The high cost of producing wave energy becomes prohibitive because at the end of the day, Campbell said, there needs to be a market for the product.

Currently BC Hydro has a standing offer program to purchase energy from smaller power projects and also puts out calls for power from larger projects.

The standing offer program purchases electricity for a set price based on location and availability which doesn't come close to the $250 to $300 per MW wave energy would be asking.

Calls for power operate on a competitive basis, taking price into consideration and also require the electricity producing technology to be proven.

While there are numerous Investigative Use Permits held by various companies for swaths of ocean offshore of Ucluelet and Tofino, not one company has yet put any technology in the water.

Campbell said more support from the provincial government would help wave energy get that first project in the water and get the experience needed to eventually bid into a call for power.

Earlier this year, the province released a strategy for bioenergy - electricity produced from waste wood - to target pine-beetle destroyed trees in the interior.

As part of the strategy, the province will seek legislative approval for $25 million in funding to establish a provincial Bioenergy Network to invest more and enable innovation in bioenergy products and technologies.

A new fund for new energy technologies was set up last year by the provincial government, earmarking $25 million to aid technologies that would help solve energy and environmental issues and were not necessarily proven.

Campbell said three wave technology projects requested funding under the $25 million Innovative Clean Energy Fund but none were selected. Bioenergy projects however, were.

"We're very disappointed to see the ICE fund used for bioenergy when there is a bioenergy strategy," said Campbell.

Ida Chong, minister of Technology Trade and Economic Development, is encouraging wave energy projects to bid into the next call for proposals for the fund.

"Experience is needed to drive down the cost," said Campbell. "The longer it takes, the likelihood Scotland will take the lead."

Communities are also actively pursuing a strategy for Ocean Energy with the province.

At this year's Union of BC Municipalities Convention, Campbell River, which is interested in developing tidal energy, has drafted a resolution to work with the province on a strategy for wave and in-stream tidal current technologies to develop and implement power projects.

Ucluelet Mayor Dianne St. Jacques said they are endorsing that resolution.

"We want Ucluelet to be the wave energy capital of Canada," said St. Jacques.

Even without a wave and tidal energy strategy on the horizon, companies are still moving forward.

Presenting to Ucluelet council Tuesday night, Natural Power, an international company specializing in finding the right technology to work with existing waves, reported they are applying for five investigative sites in addition to the four they currently are operating offshore of Ucluelet.

Natural Power will monitor the waves over a long time period and determine which wave energy technologies in existence will work best in the wave conditions Ucluelet has to offer.

They are hopeful more funding will come from the province in the form of the Premier's Technology council which has offered more funding for marine renewables such as wave energy.

Natural Power's Mike Rodgers told council they hope to have pilot projects in the water within the next few years. As for commercial development of those projects, at the current pace, those would still be "five to six years away" he said.

Related News

Ontario will not renew electricity deal with Quebec

Ontario-Quebec Electricity Trade Agreement ends as Ontario pivots to IESO procurement, hydropower alternatives, natural gas capacity, and energy auctions, impacting grid reliability, power imports, and GHG emissions across both provincial markets.

 

Key Points

A seven-year power import pact; Ontario will end it, shifting to IESO procurement and gas capacity.

✅ Seasonal hydropower exchange of 2.3 TWh annually.

✅ IESO projects Quebec supply constraints by decade end.

✅ Ontario adds gas, auctions; near-term sector GHGs rise.

 

The Ontario government does not plan to renew the Ontario-Quebec electricity trade agreement, Radio-Canada is reporting.

The seven-year contract, which expires next year, aims to reduce Ontario's greenhouse gas (GHG) emissions by buying 2.3 Terawatt-hours of electricity from Quebec annually — that corresponds to about seven per cent of Hydro-Quebec's average annual exports.

The announcement comes as the provincially owned Quebec utility continues its legal battle over a plan to export power to Massachusetts.

The Ontario agreement has guaranteed a seasonal exchange of energy, since Quebec has a power surplus in summer, and the province's electricity needs increase in the winter. Ontario plans on exercising its last and only option in the summer of 2026, for a block of 500 megawatts.

The office of the Ontario Minister of Energy Todd Smith says the province will save money by relying "on a competitive procurement process" instead, amid debates over clean, affordable electricity policy in Ontario. And, the Independent Electricity System Operator (IESO), the equivalent of Hydro-Quebec in Ontario, added that, at any rate, Quebec is expected to "run out of electricity in the middle or at the end of the decade."

During the Quebec election campaign, Premier Francois Legault said his province needed to increase hydroelectricity production because he is expecting demand for hydroelectricity to increase by an additional 100 terawatt-hours in the coming decades — half of Hydro-Quebec's current annual output.

Coalition Avenir Quebec pitches more hydro dams to Quebec voters
The provinces will still continue to buy and sell power, reaching deals through annual energy auctions.

Eloise Edom, an associate researcher at Polytechnique Montreal's Institut de l'energie Trottier, says the announcement came as somewhat of a surprise because "we're still talking about a lot of energy."

Hydro-Quebec refused to comment on "the SIERE [Independent Electricity System Operator]'s intentions for the agreement, which ends next year," said company spokesperson Lynn St-Laurent.

No green options
Yet Ontario is running out of electricity, even as questions persist about whether it is embracing clean power to meet demand, in part because of plans to refurbish nuclear reactors at the Bruce and Darlington generator stations.

Windsor has already lost out on a $2.5-billion factory because the region is short of electricity for new industrial loads. And by 2025, Toronto will run out of power for the electrification of its transit system, according to the latest estimates from the IESO.

The Ford government recently announced that it hopes to extend the life of the Pickering nuclear station amid ongoing debate. It is also evaluating the possibility of increasing hydroelectricity production at its existing dams.

For now, Ontario is banking on its natural gas plants to meet demand, which have won most recent IESO tenders for contracts running until 2026. Last Friday, the province announced that it was going to buy an additional 1,500 megawatts by 2027.

"The [Ontario energy] minister's expectations may be that the increase in natural gas prices is temporary and that it will fade," energy economist Jean-Thomas Bernard said. "With this in mind, he probably does not want to sign a long-term contract [with Hydro-Quebec] and prefers to buy electricity on a day-to-day basis and through calls for tenders."

If the Quebec deal expires, Ontario, Canada's second highest GHG emitter, would have to increase its emissions for the sector, at least in the medium term, with electricity getting dirtier as gas fills the gap.

Last year, the IESO found that it would be very difficult to set a moratorium on natural gas before 2030. The IESO must produce a final report on the subject for the energy minister by the end of November.


 

 

Related News

View more

Crossrail will generate electricity using the wind created by trains

Urban Piezoelectric Energy Textiles capture wind-driven motion on tunnels, bridges, and facades, enabling renewable microgeneration for smart cities with decentralized power, resilient infrastructure, and flexible lamellae sheets that harvest airflow vibrations.

 

Key Points

Flexible piezoelectric sheets that convert urban wind and vibration into electricity on tunnels, bridges, and facades.

✅ Installed on London Crossrail to test airflow energy capture

✅ Flexible lamellae panels retrofit tunnels, bridges, facades

✅ Supports decentralized, resilient urban microgrids

 

Charlotte Slingsby and her startup Moya Power are researching piezo-electric textiles that gain energy from movement, similar to advances like a carbon nanotube energy harvester being explored by materials researchers. It seems logical that Slingsby originally came from a city with a reputation for being windy: “In Cape Town, wind is an energy source that you cannot ignore,” says the 27-year-old, who now lives in London.

Thanks to her home city, she also knows about power failures. That’s why she came up with the idea of not only harnessing wind as an alternative energy source by setting up wind farms in the countryside or at sea, but also for capturing it in cities using existing infrastructure.

 

The problem

The United Nations estimates that by 2050, two thirds of the world’s population will live in cities. As a result, the demand for energy in urban areas will increase dramatically, spurring interest in nighttime renewable technology that can operate when solar and wind are variable. Can the old infrastructure grow fast enough to meet demand? How might we decentralise power generation, moving it closer to the residents who need it?

For a pilot project, she has already installed grids of lamellae-covered plastic sheets in tunnels on London Crossrail routes; the draft in the tube causes the protrusions to flutter, which then generates electricity.

“If we all live in cities that need electricity, we need to look for new, creative ways to generate it, including nighttime solar cells that harvest radiative cooling,” says Slingsby, who studied design and engineering at Imperial College and the Royal College of Art. “I wanted to create something that works in different situations and that can be flexibly adapted, whether you live in an urban hut or a high-rise.”

The yield is low compared to traditional wind power plants and is not able to power whole cities, but Slingsby sees Moya Power as just a single element in a mixture of urban energy sources, alongside approaches like gravity power that aid grid decarbonization.

In the future, Slingsby’s invention could hang on skyscrapers, in tunnels or on bridges – capturing power in the windiest parts of the city, alongside emerging air-powered generators that draw energy from humidity. The grey concrete of tunnels and urban railway cuttings could become our cities’ most visually appealing surfaces...

 

Related News

View more

Salmon and electricity at center of Columbia River treaty negotiations

Columbia River Treaty Negotiations involve Canada-U.S. talks on B.C. dams, flood control, hydropower sharing, and downstream benefits, prioritizing ecosystem health, First Nations rights, and salmon restoration while balancing affordable electricity for northwest consumers.

 

Key Points

Talks to update flood control, hydropower, and ecosystem terms for fair benefits to B.C. and U.S. communities.

✅ Public consultations across B.C.'s Columbia Basin

✅ First Nations priorities include salmon restoration

✅ U.S. seeks cheaper power; B.C. defends downstream benefits

 

With talks underway between Canada and the U.S. on the future of the Columbia River Treaty, the B.C. New Democrats have launched public consultations in the region most affected by the high-stakes negotiation.

“We want to ensure Columbia basin communities are consulted, kept informed and have their voices heard,” said provincial cabinet minister Katrine Conroy via a press release announcing meetings this month in Castlegar, Golden, Revelstoke, Nakusp, Nelson and other communities.

As well as having cabinet responsibility for the talks, Conroy’s Kootenay West riding includes several places that were inundated under the terms of the 1964 flood control and power generation treaty.

“We will continue to work closely with First Nations affected by the treaty, to ensure Indigenous interests are reflected in the negotiations,” she added by way of consolation to Indigenous people who’ve been excluded from the negotiating teams on both sides of the border.

#google#

The stakes are also significant for the province as a whole. The basics of the treaty saw B.C. build dams to store water on this side of the border, easing the flood risk in the U.S. and allowing the flow to be evened out through the year. In exchange, B.C. was entitled to a share of the additional hydro power that could be generated in dams on the U.S. side.

B.C.’s sale of those downstream benefits to the U.S has poured almost $1.4 billion into provincial coffers over the past 10 years, albeit at a declining rate these days amid scrutiny from a regulator report on BC Hydro that raised concerns, because of depressed prices for cross-border electricity sales.

Politicians on the U.S. side have long sought to reopen the treaty, believing there was now a case for reducing B.C.’s entitlement.

They did not get across the threshold under President Barack Obama.

Then, last fall his successor Donald Trump served notice of intent, initiating the formal negotiations that commenced with a two day session last week in Washington, D.C. The next round is set for mid-August in B.C.

American objectives in the talks include “continued, careful management of flood risk; ensuring a reliable and economical power supply; and better addressing ecosystem concerns,” with recognition of recent BC Hydro demand declines during the pandemic.

“Economical power supply,” being a diplomatic euphemism for “cheaper electricity for consumers in the northwest states,” achievable by clawing back most of B.C.’s treaty entitlement.

On taking office last summer, the NDP inherited a 14-point statement of principles setting out B.C. hopes for negotiations to “continue the treaty” while “seeking improvements within the existing framework” of the 54-year-old agreement.

The New Democrats have endorsed those principles in a spirit of bipartisanship, even as Manitoba Hydro governance disputes play out elsewhere in Canada.

“Those principles were developed with consultation from throughout the region,” as Conroy advised the legislature this spring. “So I was involved, as well, in the process and knew what the issues were, right as they would come up.”

The New Democrats did chose to put additional emphasis on some concerns.

“There is an increase in discussion with Canada and First Nations on the return of salmon to the river,” she advised the house, recalling how construction of the enormous Grand Coulee Dam on the U.S. side in the 1930s wiped out salmon runs on the upper Columbia River.

“There was no consideration then for how incredibly important salmon was, especially to the First Nations people in our region. We have an advisory table that is made up of Indigenous representation from our region, and also we are discussing with Canada that we need to see if there’s feasibility here.”

As to feasibility, the obstacles to salmon migration in the upper reaches of the Columbia include the 168-metre high Grand Coulee and the 72-metre Chief Joseph dams on the U.S. side, plus the Keenleyside (52 metres), Revelstoke (175 metres) and Mica (240 metres) dams on the Canadian side.

Still, says Conroy “the First Nations from Canada and the tribes from the United States, have been working on scientific and technical documents and research to see if, first of all, the salmon can come up, how they can come up, and what the things are that have to be done to ensure that happens.”

The New Democrats also put more emphasis on preserving the ecosystem, aligning with clean-energy efforts with First Nations that support regional sustainability.

“I know that certainly didn’t happen in 1964, but that is something that’s very much on the minds of people in the Columbia basin,” said Conroy. “If we are going to tweak the treaty, what can we do to make sure the voices of the basin are heard and that things that were under no consideration in the ’60s are now a topic for consideration?”

With those new considerations, there’s still the status quo concern of preserving the downstream benefits as a trade off for the flooding and other impacts on this side of the border.

The B.C. position on that score is the same under the New Democrats as it was under the Liberals, despite a B.C. auditor general report on deferred BC Hydro costs.

“The level of benefits to B.C., which is currently solely in the form of the (electricity) entitlement, does not account for the full range of benefits in the U.S. or the impacts in B.C.,” says the statement of principle.

“All downstream U.S. benefits such as flood risk management, hydropower, ecosystems, water supply (including municipal, industrial and agricultural uses), recreation, navigation and other related benefits should be accounted for and such value created should be shared equitably between the two countries.”

No surprise if the Americans do not see it the same way.  But that is a topic for another day.

 

Related News

View more

Energy prices trigger EU inflation, poor worst hit

EU Energy Price Surge is driving up electricity and gas costs, inflation, and cost of living across the EU, prompting tax cuts, price caps, subsidies, and household support measures in France, Italy, Spain, and Germany.

 

Key Points

A surge in EU gas and electricity costs driving inflation and prompting government subsidies, tax cuts, and price caps.

✅ Low-income EU households now spend 50-70 percent more on energy.

✅ Governments deploy tax cuts, price caps, and direct subsidies.

✅ Gas-dependent power markets drive electricity price spikes.

 

Higher energy prices, including for natural gas, are pushing up electricity prices and the cost of living for households across the EU, prompting governments to cut taxes and provide financial support to the tune of several billion euros.

In the United Kingdom, households are bracing for high winter energy bills this season.

A series of reports published by Cambridge Econometrics in October and November 2022 found that households in EU countries are spending much more on energy than in 2020 and that governments are spending billions of euros to help consumers pay bills and cut taxes.

In France, for example, the poorest households now spend roughly one-third more on energy than in 2020. Between August 2020 and August 2022, household energy prices increased by 37 percent, while overall inflation increased by 9.2 percent.

“We estimate that the increase in household energy prices make an average French household €410 worse off in 2022 compared to 2020, mostly due to higher gas prices,” said the report.

In response to rising energy prices, the French government has adopted price caps and support measures forecast to cost over €71 billion, equivalent to 2.9 percent of French GDP, according to the U.K.-based consultancy.

In Italy, fossil fuels alone were responsible for roughly 30 percent of the country’s annual rate of inflation during spring 2022, according to Cambridge Econometrics. Unlike in other European countries, retail electricity prices have outpaced other energy prices in Italy and were 112 percent higher in July 2022 than in August 2020, the report found. Over the same time period, retail petrol prices were up 14 percent, diesel up 22 percent, and natural gas up 42 percent.

We estimate that households in the lowest-income quintile now spend about 50 percent more on energy than in 2020.

“We estimate that before government support, an average Italian household will be spending around €1,400 more on energy and fuel bills this year than in 2020,” the report said. “Low-income households are worse affected by the increasing energy prices: we estimate that households in the lowest-income quintile now spend about 50 percent more on energy than in 2020.”

Electricity production in Italy is dominated by natural gas, which has also led to a spike in wholesale electricity prices. In 2010, natural gas accounted for 50 percent of all electricity production. The share of natural gas fell to 33 percent in 2014, but then rose again, reaching 48 percent in 2021, and 56 percent in the first half of 2022, according to the report, as gas filled the gap of record low hydro power production in 2022.

In Spain, where electricity prices have seen extreme spikes, low-income households are now spending an estimated 70% more on energy than in 2020, according to Cambridge Econometrics.


Low-income squeeze
In Spain, low-income households are now spending an estimated 70% more on energy than in 2020, according to Cambridge Econometrics. It noted that the Spanish government has intervened heavily in energy markets by cutting taxes, introducing cash transfers for households, and capping the price of natural gas for power generators. The latter has led to lower electricity prices than in many other EU countries.

These support measures are forecast to cost the Spanish government over €35 billion, equivalent to nearly 3 percent of Spain’s GDP. Yet consumers will still feel the burden of higher costs of living, and rolling back electricity prices may prove difficult in the near term.

In March, electricity prices alone were responsible for 45 percent of year-on-year inflation in Spain but prices have since fallen as a result of government intervention, Cambridge Econometrics said. Between May and July, fossil fuels prices accounted for 19-25 percent of the overall inflation rate, and electricity prices for 16 percent.


Support measures
Rising inflation is also a real challenge in Germany, Europe’s largest economy, where German power prices have surged this year, adding pressure. Also there, higher gas prices are to blame.

“We estimate that the increase in energy prices currently make an average household €735 worse off in 2022 compared to 2020, mostly due to higher gas prices,” Cambridge Econometrics said, in a report focused on Germany.

The German government has introduced a number of support measures in order to help households, businesses and industry to pay energy bills, amid rising heating and electricity costs for consumers, including price caps that are expected to take effect in March next year. Moreover, households’ energy bills for December this year will be paid by the state. According to the report, these interventions will mitigate the impact of higher prices “to some extent”, but the aid measures are forecast to cost the government nearly 5 percent of GDP.


Fossil-fuel effect
In addition to gas, higher coal prices have also pushed up inflation in some countries, and U.S. electricity prices have reached multi-decade highs as inflation endures.

In Poland, which is heavily dependent on coal for electricity generation, fossil fuels accounted for roughly 40 percent of Poland’s overall year-on-year inflation rate in June 2022, which stood at over 14 percent, the consultancy said.

The price of household coal, which is widely used in heating Polish homes, increased by 157 percent between August 2021 and August 2022.

Higher energy prices in Poland are partly due to Polish and EU sanctions against Russian gas and coal. Other drivers are the weakening of the Polish zloty against the U.S. dollar and the euro, and the uptick in global demand after COVID-19 lockdowns, said Cambridge Econometrics.

Electricity prices have risen at a much slower pace than energy for transport and heating, with an annualized increase of 5.1 percent.

 

Related News

View more

Power outage update: 252,596 remain without electricity Wednesday

North Carolina Power Outages continue after Hurricane Florence, with Wilmington and Eastern Carolina facing flooding, storm damage, and limited access as Duke Energy crews and mutual aid work on restoration across affected counties.

 

Key Points

Outages after Hurricane Florence, with Wilmington and Eastern Carolina hardest hit as crews restore service amid floods.

✅ Over 250,000 outages statewide as of early Wednesday

✅ Wilmington cut off by flooding, hindering utility access

✅ Duke Energy and EMC crews conduct phased restoration

 

Power is slowly being restored to Eastern Carolina residents after Hurricane Florence made landfall near Wilmington on Friday, September 15, a scenario echoed by storm-related outages in Tennessee in recent days.

On Monday, more than half a million people remained without power across the state, a situation comparable to post-typhoon electricity losses in Hong Kong reported elsewhere.

As of Wednesday morning at 1am, the Dept. of Public Safety reports 252,596 total power outages in North Carolina, and utilities continue warning about copper theft hazards during restoration.

More than half of those customers are in Eastern Carolina.

More than 32,000 customers are without power in Carteret County and roughly 21,000 are without power in Onslow County.

In Craven County, roughly 15,000 people remain without power Wednesday morning.

Many of the state's outages are effecting the Wilmington area, where Florence made landfall and widespread flooding is still cutting off the city from outside resources, similar to how a fire-triggered outage in Los Angeles disrupted service regionally.

Heavy rain, strong winds and now flooded roadways have hindered power crews, challenges that utility climate adaptation aims to address while many of them have out-of-state or out-of-town help working to restore power to so many people.

Here's a breakdown of current outages by utility company:

DUKE ENERGY PROGRESS - 

  • 1,350 in Beaufort Co. 
  • 10,706 in Carteret Co. 
  • 2,716 in Pamlico Co. 
  • 7,422 in Craven Co. 
  • 1,687 in Jones Co. 
  • 13,319 in Onslow Co. 
  • 7,452 in Pender Co. 
  • 48,281 in New Hanover Co. 
  • 5,257 in Duplin Co. 
  • 488 in Lenoir Co. 
  • 1,231 in Pitt Co.

 

JONES-ONSLOW EMC - 10,964 total 

  • 7,699 in Onslow Co. 
  • 2,366 in Pender Co. 
  • 816 in Jones Co.

TIDELAND EMC - 

  • 174 in Beaufort Co.
  • 1,521 in Craven Co.
  • 1,693 in Pamlico Co.

CARTERET-CRAVEN ELECTRIC CO OP- 

  • 21,974 in Carteret Co. 
  • 6,553 in Craven Co.
  • 216 in Jones Co.

 

Related News

View more

Zapping elderly brains with electricity improves short-term memory — for almost an hour

Transcranial electrical stimulation synchronizes brain waves to bolster working memory, aligning neural oscillations across the prefrontal and temporal cortex. This noninvasive brain stimulation may counter cognitive aging by restoring network coupling and improving short-term recall.

 

Key Points

Transcranial electrical stimulation applies scalp currents to synchronize brain waves, briefly enhancing working memory.

✅ Synchronizes prefrontal-temporal networks to restore coupling

✅ Noninvasive tES/tACS protocols show rapid, reversible gains

✅ Effects lasted under an hour; durability remains to be tested

 

To read this sentence, you hold the words in your mind for a few seconds until you reach the period. As you do, neurons in your brain fire in coordinated bursts, generating electrical waves that let you hold information for as long as it is needed, much as novel devices can generate electricity from falling snow under specific conditions. But as we age, these brain waves start to get out of sync, causing short-term memory to falter. A new study finds that jolting specific brain areas with a periodic burst of electricity might reverse the deficit—temporarily, at least.

The work makes “a strong case” for the idea that out-of-sync brain waves in specific regions can drive cognitive aging, says Vincent Clark, a neuroscientist at the University of New Mexico in Albuquerque, who was not involved in the research. He adds that the brain stimulation approach in the study may result in a new electrical therapy for age-related deficits in working memory.

Working memory is “the sketchpad of the mind,” allowing us to hold information in our minds over a period of seconds. This short-term memory is critical to accomplishing everyday tasks such as planning and counting, says Robert Reinhart, a neuroscientist at Boston University who led the study. Scientists think that when we use this type of memory, millions of neurons in different brain areas communicate through coupled bursts of activity, a form of electrical conduction that coordinates timing across networks. “Cells that fire together, wire together,” Reinhart says.

But despite its critical role, working memory is a fragile cognitive resource that declines with age, Reinhart says. Previous studies had suggested that reduced working-memory performance in the elderly is linked to uncoupled activity in different brain areas. So Reinhart and his team set out to test whether recoupling brain waves in older adults could boost the brain’s ability to temporarily store information, a systems-level coordination challenge akin to efforts to use AI for energy savings on modern power grids.

To do so, the researchers used jolts of weak electrical current to synchronize waves in the prefrontal and temporal cortex—two brain areas critical for cognition, a targeted approach not unlike how grids use batteries to stabilize power during strain—and applied the current to the scalps of 42 healthy people in their 60s and 70s who showed no signs of decline in mental ability. Before their brains were zapped, participants looked at a series of images: an everyday object, followed briefly by a blank screen, and then either an identical or a modified version of the same object. The goal was to spot whether the two images were different.

Then the participants took the test again, while their brains were stimulated with a current. After about 25 minutes of applying electricity, participants were on average more accurate at identifying changes in the images than they were before the stimulation. Following stimulation, their performance in the test was indistinguishable from that of a group of 42 people in their 20s. And the waves in the prefrontal and temporal cortex, which had previously been out of sync in most of the participants, started to fire in sync, the researchers report today in Nature Neuroscience, a synchronization imperative reminiscent of safeguards that prevent power blackouts on threatened grids. No such effects occurred in a second group of older people who received jolts of current that didn’t synchronize waves in the prefrontal and temporal cortex.

By using bursts of current to knock brain waves out of sync, the researchers also modulated the brain chatter in healthy people in their 20s, making them slower and less accurate at spotting differences in the image test.

“This is a very nice and clear demonstration of how functional connections underlie memory in younger adults and how alterations … can lead to memory reductions in older adults,” says Cheryl Grady, a cognitive neuroscientist at the Rotman Research Institute at Baycrest in Toronto, Canada. It’s also the first time that transcranial stimulation has been shown to restore working memory in older people, says Michael O’Sullivan, a neuroscientist at the University of Queensland in Brisbane, Australia, though electricity in medicine extends far beyond neurostimulation.

But whether brain zapping could turbocharge the cognitive abilities of seniors or help improve the memories of people with diseases like Alzheimer’s is still unclear: In the study, the positive effects on working memory lasted for just under an hour—though Reinhart says that’s as far as they recorded in the experiment. The team didn’t see the improvements decline toward the end, so he suspects that the cognitive boost may last for longer. Still, researchers say much more work has to be done to better understand how the stimulation works.

Clark is optimistic. “No pill yet developed can produce these sorts of effects safely and reliably,” he says. “Helping people is the ultimate goal of all of our research, and it’s encouraging to see that progress is being made.”

 

Related News

View more

Sign Up for Electricity Forum’s Newsletter

Stay informed with our FREE Newsletter — get the latest news, breakthrough technologies, and expert insights, delivered straight to your inbox.

Electricity Today T&D Magazine Subscribe for FREE

Stay informed with the latest T&D policies and technologies.
  • Timely insights from industry experts
  • Practical solutions T&D engineers
  • Free access to every issue

Download the 2025 Electrical Training Catalog

Explore 50+ live, expert-led electrical training courses –

  • Interactive
  • Flexible
  • CEU-cerified