Nuclear workers see risks as conditions worsen

By Reuters


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Worsening working conditions, inadequate pay rises, pressure to work faster and safety concerns -- these are the familiar grievances of a disaffected work force.

When such complaints arise in France's most sensitive industry — nuclear power — alarm bells start ringing.

Cyril Bouche and his colleagues at the Tricastin nuclear plant in the rolling hills of the Drome region say the state-owned utility EDF, which runs France's 58 nuclear reactors and has been expanding into the United States and Britain, is not only cutting costs, but also cutting corners.

The 39-year old, who works for one of EDF's many subcontracting firms, says working conditions at the plant — hit by a series of incidents that shook public trust in 2008 — have deteriorated over the past five to 10 years.

"Today France is selling reactors abroad but it should first put its own house in order," said Bouche, the only one of 10 workers interviewed by Reuters who was prepared to be identified.

The French government has put forward state ownership of its nuclear sector as a guarantee of its safety, but former monopoly EDF subcontracts 80 percent of the maintenance at its nuclear reactors to firms such as Vinci, Areva, GDF Suez or Bouygues.

EDF denies the suggestion that subcontracting implies it is skimping, pointing to plans to more than double investments to 8 billion euros in 2009 from 2005 levels to build and modernise nuclear, fuel-fired power plants and hydraulic plants.

"We subcontract because we have very specialized activities. When we change the reactor's fuel, this is a very sophisticated activity," said Philippe Gaestel, head of industrial strategy at EDF.

"We prefer to use subcontractors rather than do it ourselves. This means we have specialists and competencies that we couldn't have internally."

But independent experts including Yves Marignac, executive director of the information agency Wise-Paris, say safety margins in French nuclear power plants are shrinking as plants age, economic pressure mounts and trained staff retire.

"Even if it remains very unlikely, the probability of a serious nuclear incident is rising because of the way things are evolving, and this in itself is very worrying," he told Reuters by telephone.

France's nuclear safety record worsened in 2008.

Last year there was an increase of nearly one-third in nuclear incidents reported by the French nuclear safety watchdog at level one of the International Nuclear Event Scale (INES), which runs from 0 to 7.

The French nuclear safety board ASN said there had been 72 incidents at level one in 2008, up from 56 in 2007.

Nuclear is the main industrial sector of the Drome region famous for the nougat delicacy made in the city of Montelimar.

"All in all nuclear must make up between 75 and 80 percent of the region's employment," said Guy Durand, deputy mayor to the town of Pierrelatte, one the three cities which share the nuclear site of Tricastin.

"It's enormous... today there are around 5,000 permanent jobs on the industrial site," Durand added.

For Bouche and others, good pay was the lure to an industry that requires working long hours in dark and confined spaces with the constant risk of exposure to radiation.

A former car mechanic on the minimum wage, Bouche said he doubled his salary when he entered the nuclear sector 18 years ago but that pay had not increased with inflation.

France generates 80 percent of its electricity from nuclear power and is keen to export its expertise, which stretches back three decades, as other countries turn to nuclear to cut carbon emissions and boost their energy independence.

It opted for nuclear after the 1973 oil crisis pushed oil to then-record levels, although the choice was political: the costs of nuclear and fossil fuels are not easy to compare.

Thanks to state intervention in pricing, French consumers pay one of the cheapest rates for electricity in Europe. The French public continued to back the expansion of the industry after the explosion of the Chernobyl nuclear reactor in Ukraine in 1986, as other countries turned their back on the technology.

But as media attention mounts on atomic energy and France plans to extend its reactors' lifespans and build new ones, public acceptance is diminishing.

A 20-country survey earlier this year by Accenture showed that while public resistance to nuclear power had eased in many countries in the last three years, French consumers had become more negative.

The Tricastin workers say they are worried about mounting numbers of small incidents, and point to a lack of oversight.

"In the past we used to work hand-in-hand with EDF on maintenance operations, but little by little EDF has withdrawn to let subcontractors take over," said one of Bouche's colleagues, speaking on condition of anonymity because he feared he may lose his job.

"Now EDF has lost its knowledge," he said, adding that EDF agents now merely played a monitoring role.

Annie Thebaud-Mony, head of research at the French health institute Inserm, said jobs in nuclear power plants were becoming less secure due to privatization and competition.

EDF partially floated its stock in 2005. Core profit for 2008 fell by more than 6 percent to 14.24 billion euros, and the company pledged in February to focus on organic growth after acquisitions in Britain and in the United States inflated its debt to nearly 25 billion euros.

But the company denies it has gradually pulled out from maintenance, saying it chose to subcontract from the outset.

"This was the optimal option to have quality work with specialists who operate permanently on our sites," said EDF's Gaestel. He said the company spent some 1.5 billion euros annually on maintenance, a relatively stable sum for some years.

Bouche and his colleagues say maintenance periods have considerably shortened. Each planned outage costs EDF around 1 million euros per day, the company has confirmed.

"Before, it took two months to do standard refuelling maintenance against three to four weeks now," said a logistics manager who heads a team of 30 and has been in the sector for 22 years.

EDF, which sells electricity to its neighbors, is under pressure to increase the availability of its aging reactors.

EDF's Gaestel said it was important for the operator to stick to its maintenance program drawn up in advance.

"What can be a problem though is when the planning drifts because of technical problems, like at the Tricastin nuclear site in 2008," he said.

France's nuclear watchdog ASN said in its 2008 report that maintenance operations were not always satisfactory because of inappropriate documentation, insufficient protective equipment and too tight a schedule.

It said subcontractor training should be improved.

For the workers, the tight maintenance schedules are adding to the risk of accident.

"We work on top of each other in the nuclear reactor which is very narrow and where it's hard to operate," said a 53-year-old worker. "We can be hit on the head by a hammer or be contaminated. Before, those risks did not exist because we used to take it in turns to work," he said.

While EDF agents have public sector contracts, which means a job for life, subcontractors fall in the private sector, making them vulnerable to job cuts. Their firms risk losing their contracts with EDF every three years.

EDF said not just any company could work in the nuclear sector.

"You have to produce your credentials to work in the nuclear field," Gaestel said. "Before a company can apply to our tenders there is a six-month long audit," he said, adding EDF planned to extend current contracts with subcontractors to six years.

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Germany considers U-turn on nuclear phaseout

Germany Nuclear Power Extension debated as Olaf Scholz weighs energy crisis, gas shortages from Russia, slow grid expansion in Bavaria, and renewables delays; stress test results may guide policy alongside coal plant reactivations.

 

Key Points

A proposal to delay Germany's nuclear phaseout to stabilize power supply amid gas cuts and slow grid upgrades.

✅ Driven by Russia gas cuts and Nord Stream 1 curtailment

✅ Targets Bavaria grid bottlenecks; renewables deployment delays

✅ Decision awaits grid stress test; coalition parties remain split

 

The German chancellor on Wednesday said it might make sense to extend the lifetime of Germany's three remaining nuclear power plants.

Germany famously decided to stop using atomic energy in 2011, and the last remaining plants were set to close at the end of this year.

However, an increasing number of politicians have been arguing for the postponement of the closures amid energy concerns arising from Russia's invasion of Ukraine. The issue divides members of Scholz's ruling traffic-light coalition.

What did the chancellor say?
Visiting a factory in western Germany, where a vital gas turbine is being stored, Chancellor Olaf Scholz was responding to a question about extending the lifetime of the power stations.

He said the nuclear power plants in question were only relevant for a small proportion of electricity production. "Nevertheless, that can make sense," he said.

The German government has previously said that renewable energy alternatives are the key to solving the country's energy problems.

However, Scholz said this was not happening quickly enough in some parts of Germany, such as Bavaria.

"The expansion of power line capacities, of the transmission grid in the south, has not progressed as quickly as was planned," the chancellor said.

"We will act for the whole of Germany, we will support all regions of Germany in the best possible way so that the energy supply for all citizens and all companies can be guaranteed as best as possible."

The phaseout has been planned for a long time. Germany's Social Democrat government, under Merkel's predecessor Gerhard Schröder, had announced that Germany would stop using nuclear power by 2022 as planned.

Schröder's successor Angela Merkel — herself a former physicist — had initially sought to extend to life of existing nuclear plants to as late as 2037. She viewed nuclear power as a bridging technology to sustain the country until new alternatives could be found.

However, Merkel decided to ditch atomic energy in 2011, after the Fukushima nuclear disaster in Japan, setting Germany on a path to become the first major economy to phase out coal and nuclear in tandem.

Nuclear power accounted for 13.3% of German electricity supply in 2021. This was generated by six power plants, of which three were switched off at the end of 2021. The remaining three — Emsland, Isar and Neckarwestheim — were due to shut down at the end of 2022. 

Germany's energy mix 1st half of 2022
The need to fill an energy gap has emerged after Russia dramatically reduced gas deliveries to Germany through the Nord Stream 1 pipeline, though nuclear power would do little to solve the gas issue according to some officials. Officials in Berlin say the Kremlin is seeking to punish the country — which is heavily reliant on Moscow's gas — for its support of Ukraine and sanctions on Russia.

Germany has already said it will temporarily fire up mothballed coal and oil power plants in a bid to solve the looming power crisis.

Social Democrat Scholz and Germany's energy minister, Robert Habeck, from the Green Party, a junior partner in the three-way coalition government, had previously ruled out any postponement of the nuclear phasout, despite debate over a possible resurgence of nuclear energy among some lawmakers. The third member of Scholz's coalition, the neoliberal Free Democrats, has voiced support for the extension, as has the opposition conservative CDU-CSU bloc.

Berlin has said it will await the outcome of a new "stress test" of Germany's electric grid before deciding on the phaseout.

 

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Ontario energy minister asks for early report exploring a halt to natural gas power generation

Ontario Natural Gas Moratorium gains momentum as IESO weighs energy storage, renewables, and demand management to meet rising electricity demand, ensure grid reliability, and advance zero-emissions goals while long-term capacity procurements proceed.

 

Key Points

A proposed halt on new gas plants as IESO assesses storage and renewables to maintain reliability and cut emissions.

✅ Minister seeks interim IESO report by Oct. 7

✅ Near-term contracts extend existing gas plants for reliability

✅ Long-term procurements emphasize storage, renewables, conservation

 

Ontario's energy minister says he doesn't think the province needs any more natural gas generation and has asked the electricity system regulator to speed up a report exploring a moratorium.

Todd Smith had previously asked the Independent Electricity System Operator (IESO) to report back by November on the feasibility of a moratorium and a plan to get to zero emissions in the electricity sector.

He has asked them today for an interim report by Oct. 7 so he can make a decision on a moratorium before the IESO secures contracts over the long term for new power generation.

"I've asked the IESO to speed up that report back to us so that we can get the information from them as to what the results would be for our grid here in Ontario and whether or not we actually need more natural gas," Smith said Tuesday after question period.

"I don't believe that we do."

Smith said that is because of the "huge success" of two updates provided Tuesday by the IESO to its attempts to secure more electricity supply for both the near term and long term. Demand is growing by nearly two per cent a year, while Ontario is set to lose a significant amount of nuclear generation, including the planned shutdown of the Pickering nuclear station over the next few years.

'For the near term, we need them,' regulator says
The regulator today released a list of 55 qualified proponents for those long-term bids and while it says there is a significant amount of proposed energy storage projects on that list, there are some new gas plants on it as well.

Chuck Farmer, the vice-president of planning, conservation and resource adequacy at the IESO, said it's hoped that the minister makes a decision on whether or not to issue a moratorium on new gas generation before the regulator proceeds with a request for proposals for long-term contracts.

The IESO also announced six new contracts — largely natural gas, with a small amount of wind power and storage — to start in the next few years. Farmer noted that these contracts were specifically for existing generators whose contracts were ending, while the province is exploring new nuclear plants for the longer term.

"When you look at the pool of generation resources that were in that situation, the reality is most of them were actually natural gas plants, and that we are relying on the continued use of the natural gas plants in the transition," he said in an interview. 

"So for the near term, we need them for the reliability of the system."

The upcoming request for proposals for more long-term contracts hopes to secure 3,500 megawatts of capacity, as Ontario faces an electricity shortfall in the coming years, and Farmer said the IESO plans to run a series of procurements over the next few years.

Opposition slams reliance on natural gas
The NDP and Greens on Tuesday criticized Ontario's reliance in the near term on natural gas because of its environmental implications.

The IESO has said that due to natural gas, greenhouse gas emissions from the electricity sector are set to increase for the next two decades, but by about 2038 it projects the net reductions from electric vehicles will offset electricity sector emissions.

Green Party Leader Mike Schreiner said it makes no sense to ramp up natural gas, both for the climate and for people's wallets.

"The cost of wind and solar power is much lower than gas," he said.

Ontario quietly revises its plan for hitting climate change targets
"We're in a now-or-never moment to address the climate crisis and the government is failing to meet this moment."

Interim NDP Leader Peter Tabuns said Ontario wouldn't be in as much of a supply crunch if the Progressive Conservative government hadn't cancelled 750 green energy contracts during their first term.

The Tories argued the province didn't need the power and the contracts were driving up costs for ratepayers, amid debate over whether greening the grid would be affordable.

The IESO said it is also proposing expanding conservation and demand management programs, as a "highly cost-effective" way to reduce strain on the system, though it couldn't say exactly what is on the table until the minister accepts the recommendation.

 

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California Legislators Prepare Vote to Crack Down on Utility Spending

California Utility Spending Bill scrutinizes how ratepayer funds are used by utilities, targeting lobbying, advertising, wildfire prevention cost pass-throughs, and CPUC oversight to curb high electricity bills and increase accountability and transparency statewide.

 

Key Points

Legislation restricting utilities from using ratepayer money for lobbying and ads, with stronger CPUC oversight.

✅ Bans ratepayer-funded lobbying and political advertising

✅ Expands prohibited utility communications and influence spending

✅ Aims to curb bills, boost transparency, and CPUC accountability

 

California's legislators are about to vote on a bill that would impose stricter regulations on how utility companies spend the money they collect from ratepayers. This legislation directly responds to the growing discontent among Californians who are already grappling with high electricity bills, as Californians ask why electricity prices are soaring amid wildfire prevention efforts.

Consumer rights groups have been vehemently critical of how utilities have been allocating customer funds, amid growing calls for regulatory action from state officials. They allege that a substantial portion of this money is being funnelled into lobbying efforts and advertising campaigns that yield no direct benefits for the customers themselves.

The proposed bill would significantly broaden the definition of what constitutes prohibited advertising and political influence activities on the part of utility companies, separate from income-based fixed electricity charges proposals that affect rate design. This would effectively restrict the ways in which utilities can utilize customer funds for such purposes.

While consumer advocacy groups have favored the legislation, it has drawn opposition from utility companies and some labor unions, as lawmakers weigh overturning income-based utility charges in parallel debates. Opponents contend that it would hinder utilities' ability to communicate effectively with their customers and advocate for their interests. Additionally, they express concerns that the bill could result in job losses within the utility sector.

The vote on the bill is expected to take place on Monday. The outcome of the vote is uncertain, but it is sure to be a closely watched development for Californians struggling with the burden of high electricity bills, with many wondering about major changes to their electric bills in the near term.

 

California's Electricity Rates: A Burden for Residents

A recent report by the California Public Utilities Commission (CPUC) revealed that the average Californian household spends a significantly higher amount on electricity compared to the national average. This disparity in electricity rates can be attributed to a number of factors, including the financial costs associated with wildfire prevention measures, investments in renewable energy infrastructure, and maintenance of aging electrical grids, even as the state considers revamping electricity rates to clean the grid.

 

Examples of Utility Company Spending that Raise Concerns

Consumer rights groups have specifically highlighted instances where utility companies have used customer money to fund lavish executive compensation packages, sponsor professional sports teams, and finance political campaigns. They argue that these expenditures do not provide any tangible benefits to ratepayers and should not be funded through customer bills.

 

The Need for Accountability and Prioritization

Proponents of the bill believe that the legislation is necessary to ensure that utility companies are held accountable for how they spend customer funds. They believe that the stricter regulations would compel utilities to prioritize investments that directly improve the quality and reliability of electricity services for Californians, alongside discussions of income-based flat-fee utility bills that could reshape rate structures.

The impending vote on the bill underscores the ongoing tension between the need for reliable electricity services and the desire to keep utility rates affordable for Californians. The outcome of the vote is likely to have a significant impact on how utility companies operate in the state and how much Californians pay for their electricity.

 

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This kite could harness more of the world's wind energy

Autonomous Energy Kites harness offshore wind on floating platforms, using carbon fiber wings, tethers, and rotors to generate grid electricity; an airborne wind energy solution backed by Alphabet's Makani to cut turbine costs.

 

Key Points

Autonomous Energy Kites are tethered craft that capture winds with rotors, generating grid power from floating platforms.

✅ Flies circles on tethers; rotors drive generators to feed the grid.

✅ Operates over deep-sea winds where fixed turbines are impractical.

✅ Lighter, less visual impact, and lower installation costs offshore.

 

One company's self-flying energy kite may be the answer to increasing wind power around the world, alongside emerging wave power solutions as well.

California-based Makani -- which is owned by Google's parent company, Alphabet -- is using power from the strongest winds found out in the middle of the ocean, where the offshore wind sector has huge potential, typically in spots where it's a challenge to install traditional wind turbines. Makani hopes to create electricity to power communities across the world.

Despite a growing number of wind farms in the United States and the potential of this energy source, lessons from the U.K. underscore how to scale, yet only 6% of the world's electricity comes from wind due to the the difficulty of setting up and maintaining turbines, according to the World Wind Energy Association.

When the company's co-founders, who were fond of kiteboarding, realized deep-sea winds were largely untapped, they sought to make that energy more accessible. So they built an autonomous kite, which looks like an airplane tethered to a base, to install on a floating platform in water, as part of broader efforts to harness oceans and rivers for power across regions. Tests are currently underway off the coast of Norway.

"There are many areas around the world that really don't have a good resource for renewable power but do have offshore wind resources," Makani CEO Fort Felker told Rachel Crane, CNN's innovation correspondent. "Our lightweight kites create the possibility that we could tap that resource very economically and bring renewable power to hundreds of millions of people."

This technology is more cost-efficient than a traditional wind turbine, which is a lot more labor intensive and would require lots of machinery and installation.

The lightweight kite, which is made of carbon fiber, has an 85-foot wingspan. The kite launches from a base station and is constrained by a 1,400-foot tether as it flies autonomously in circles with guidance from computers. Crosswinds spin the kite's eight rotors to move a generator that produces electricity that's sent back to the grid through the tether.

The kites are still in the prototype phase and aren't flown constantly right now as researchers continue to develop the technology. But Makani hopes the kites will one day fly 24/7 all year round. When the wind is down, the kite will return to the platform and automatically pick back up when it resumes.

Chief engineer Dr. Paula Echeverri said the computer system is key for understanding the state of the kite in real time, from collecting data about how fast it's moving to charting its trajectory.

Echeverri said tests have been helpful in establishing what some of the challenges of the system are, and the team has made adjustments to get it ready for commercial use. Earlier this year, the team successfully completed a first round of autonomous flights.

Working in deeper water provides an additional benefit over traditional wind turbines, according to Felker. By being farther offshore, the technology is less visible from land, and the growth of offshore wind in the U.K. shows how coastal communities can adapt. Wind turbines can be obtrusive and impact natural life in the surrounding area. These kites may be more attractive to areas that wish to preserve their scenic coastlines and views.

It's also desirable for regions that face constraints related to installing conventional turbines -- such as island nations, where World Bank support is helping developing countries accelerate wind adoption, which have extremely high prices for electricity because they have to import expensive fossil fuels that they then burn to generate electricity.

Makani isn't alone in trying to bring novelty to wind energy. Several others companies such as Altaeros Energies and Vortex Bladeless are experimenting with kites of their own or other types of wind-capture methods, such as underwater kites that generate electricity, a huge oscillating pole that generates energy and a blimp tethered to the ground that gathers winds at higher altitudes.

 

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Amazon Announces Three New Renewable Energy Projects to Support AWS Global Infrastructure

AWS Renewable Energy Projects deliver new wind power for AWS data centers in Ireland, Sweden, and the US, adding 229 MW and 670,000 MWh annually, supporting 100% renewable targets and global cloud sustainability.

 

Key Points

AWS projects add wind power in Ireland, Sweden, and the US to supply clean energy for AWS data centers.

✅ 229 MW new wind capacity; 670,000 MWh annual generation

✅ Sites: Donegal (IE), Backhammar (SE), Tehachapi (US)

✅ Advances 100% renewable goal for global AWS infrastructure

 

 Amazon has announced three new clean energy projects as part of its long-term goal to power all Amazon Web Services (AWS) global infrastructure with renewable energy. These projects – one in Ireland, one in Sweden, and one in the United States – will deliver wind-generated energy that will total over 229 megawatts (MW) of power, with expected generation of over 670,000 megawatt hours (MWh) of renewable energy annually. The new projects are part of AWS’s long-term commitment to achieve 100 percent renewable energy for its global infrastructure. In 2018, AWS exceeded 50 percent renewable energy for its global infrastructure.

Once complete, these projects, combined with AWS’s previous nine renewable energy projects, reflect how renewable power developers benefit from diversified sources and are expected to generate more than 2,700,000 MWh of renewable energy annually – equivalent to the annual electricity consumption of over 262,000 US homes, which is approximately the size of the city of Nashville, Tennessee.

“Each of these projects brings us closer to our long-term commitment to use 100 percent renewable energy to power our global AWS infrastructure,” said Peter DeSantis, Vice President of Global Infrastructure and Customer Support, Amazon Web Services. “These projects are well-positioned to serve AWS data centers in Ireland, Sweden, and the US. We expect more projects in 2019 as we continue toward our goal of powering all AWS global infrastructure with renewable energy.”

Amazon has committed to buying the energy from a new wind project in Ireland, a 91.2 MW wind farm in Donegal. The Donegal wind farm project is expected to deliver clean energy no later than the end of 2021.

“AWS’s investment in renewable projects in Ireland illustrates their continued commitment to adding clean energy to the grid and it will make a positive contribution to Ireland’s renewable energy goals,” said Leo Varadkar, An Taoiseach of Ireland. “As a significant employer in Ireland, it is very encouraging to see Amazon taking a lead on this issue. We look forward to continuing to work with Amazon as we strive to make Ireland a leader on renewable energy.”

Amazon will also purchase 91 MW of power from a new wind farm in Bäckhammar, Sweden, which is expected to deliver renewable energy by the end of 2020.

“Sweden has long been known for ambitious renewable energy goals, and this new wind farm showcases both our country’s leadership and AWS’s commitment to renewable energy,” said Anders Ygeman, Sweden’s Minister for Energy and Digital Development. “This is a significant step in Sweden’s renewable energy production as we work toward our target of 100 percent renewable energy by 2040.”

California leads the United States in renewable electricity generation from non-hydroelectric sources, as US solar and wind growth accelerates, and the state’s Tehachapi Mountains, where AWS’s wind farm will be located, contain some of the largest wind farms in the country. The wind farm project in Tehachapi is expected to bring up to 47 MW of new renewable energy capacity by the end of 2020.

“This announcement from AWS is great news, not just for California, but for the entire country, as it reaffirms our role as a leader in renewable energy and allows us to take an important step forward on deploying the clean energy we need to respond to climate change,” said California State Senator Jerry Hill, San Mateo and Santa Clara Counties, a member of the Senate Standing Committee on Energy, Utilities and Communications.

Beyond the sustainability initiatives focused on powering the AWS global infrastructure, Amazon recently announced Shipment Zero, which is Amazon’s vision to make all Amazon shipments net zero carbon, with 50 percent of all shipments net zero by 2030. Additional sustainability programs across the company include Amazon Wind Farm Texas, which adds more than 1 million MWh of clean energy each year, alongside Amazon Wind Farm US East that is now fully operational, demonstrating scale. In total, Amazon has enabled 53 wind and solar projects worldwide, which produce more than 1,016 MW and are expected to deliver over 3,075,636 million MWh of energy annually, while peers like Arvato's solar power plant underscore broader momentum across the industry. These projects support hundreds of jobs, while providing tens of millions of dollars of investment in local communities, with Iowa wind power offering a strong example. Amazon has also set a goal to host solar energy systems at 50 fulfillment centers by 2020. This deployment of rooftop solar systems, aided by cheap batteries that enhance storage, is part of a long-term initiative that will start in North America and spread across the globe. Amazon also implemented the District Energy Project that uses recycled energy for heating Amazon offices in Seattle. For more information on Amazon’s sustainability initiatives, visit www.amazon.com/sustainability.

 

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Canadian Scientists say power utilities need to adapt to climate change

Canada Power Grid Climate Resilience integrates extreme weather planning, microgrids, battery storage, renewable energy, vegetation management, and undergrounding to reduce outages, harden infrastructure, modernize utilities, and safeguard reliability during storms, ice events, and wildfires.

 

Key Points

Canada's grid resilience hardens utilities against extreme weather using microgrids, storage, renewables, and upgrades.

✅ Grid hardening: microgrids, storage, renewable integration

✅ Vegetation management reduces storm-related line contact

✅ Selective undergrounding where risk and cost justify

 

The increasing intensity of storms that lead to massive power outages highlights the need for Canada’s electrical utilities to be more robust and innovative, climate change scientists say.

“We need to plan to be more resilient in the face of the increasing chances of these events occurring,” University of New Brunswick climate change scientist Louise Comeau said in a recent interview.

The East Coast was walloped this week by the third storm in as many days, with high winds toppling trees and even part of a Halifax church steeple, underscoring the value of storm-season electrical safety tips for residents.

Significant weather events have consistently increased over the last five years, according to the Canadian Electricity Association (CEA), which has tracked such events since 2003.

#google#

Nearly a quarter of total outage hours nationally in 2016 – 22 per cent – were caused by two ice storms, a lightning storm, and the Fort McMurray fires, which the CEA said may or may not be classified as a climate event.

“It (climate change) is putting quite a lot of pressure on electricity companies coast to coast to coast to improve their processes and look for ways to strengthen their systems in the face of this evolving threat,” said Devin McCarthy, vice president of public affairs and U.S. policy for the CEA, which represents 40 utilities serving 14 million customers.

The 2016 figures – the most recent available – indicate the average Canadian customer experienced 3.1 outages and 5.66 hours of outage time.

McCarthy said electricity companies can’t just build their systems to withstand the worst storm they’d dealt with over the previous 30 years. They must prepare for worse, and address risks highlighted by Site C dam stability concerns as part of long-term planning.

“There needs to be a more forward looking approach, climate science led, that looks at what do we expect our system to be up against in the next 20, 30 or 50 years,” he said.

Toronto Hydro is either looking at or installing equipment with extreme weather in mind, Elias Lyberogiannis, the utility’s general manager of engineering, said in an email.

That includes stainless steel transformers that are more resistant to corrosion, and breakaway links for overhead service connections, which allow service wires to safely disconnect from poles and prevents damage to service masts.

Comeau said smaller grids, tied to electrical systems operated by larger utilities, often utilize renewable energy sources such as solar and wind as well as battery storage technology to power collections of buildings, homes, schools and hospitals.

“Capacity to do that means we are less vulnerable when the central systems break down,” Comeau said.

Nova Scotia Power recently announced an “intelligent feeder” pilot project, which involves the installation of Tesla Powerwall storage batteries in 10 homes in Elmsdale, N.S., and a large grid-sized battery at the local substation. The batteries are connected to an electrical line powered in part by nearby wind turbines.

The idea is to test the capability of providing customers with back-up power, while collecting data that will be useful for planning future energy needs.

Tony O’Hara, NB Power’s vice-president of engineering, said the utility, which recently sounded an alarm on copper theft, was in the late planning stages of a micro-grid for the western part of the province, and is also studying the use of large battery storage banks.

“Those things are coming, that will be an evolution over time for sure,” said O’Hara.

Some solutions may be simpler. Smaller utilities, like Nova Scotia Power, are focusing on strengthening overhead systems, mainly through vegetation management, while in Ontario, Hydro One and Alectra are making major investments to strengthen infrastructure in the Hamilton area.

“The number one cause of outages during storms, particularly those with high winds and heavy snow, is trees making contact with power lines,” said N.S. Power’s Tiffany Chase.

The company has an annual budget of $20 million for tree trimming and removal.

“But the reality is with overhead infrastructure, trees are going to cause damage no matter how robust the infrastructure is,” said Matt Drover, the utility’s director for regional operations.

“We are looking at things like battery storage and a variety of other reliability programs to help with that.”

NB Power also has an increased emphasis on tree trimming and removal, and now spends $14 million a year on it, up from $6 million prior to 2014.

O’Hara said the vegetation program has helped drive the average duration of power outages down since 2014 from about three hours to two hours and 45 minutes.

Some power cables are buried in both Nova Scotia and New Brunswick, mostly in urban areas. But both utilities maintain it’s too expensive to bury entire systems – estimated at $1 million per kilometre by Nova Scotia Power.

The issue of burying more lines was top of mind in Toronto following a 2013 ice storm, but that’s city’s utility also rejected the idea of a large-scale underground system as too expensive – estimating the cost at around $15 billion, while Ontario customers have seen Hydro One delivery rates rise in recent adjustments.

“Having said that, it is prudent to do so for some installations depending on site specific conditions and the risks that exist,” Lyberogiannis said.

Comeau said lowering risks will both save money and disruption to people’s lives.

“We can’t just do what we used to do,” said Xuebin Zhang, a senior climate change scientist at Environment and Climate Change Canada.

“We have to build in management risk … this has to be a new norm.”

 

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Advantages To Instructor-Led Training – Instructor-Led Course, Customized Training, Multiple Locations, Economical, CEU Credits, Course Discounts.

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Whether you would prefer Live Online or In-Person instruction, our electrical training courses can be tailored to meet your company's specific requirements and delivered to your employees in one location or at various locations.