Darlington has edge for new nuclear plant

By Toronto Star


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The limited electricity transmission capacity from Lake Huron to the Toronto area is giving the Durham Region community of Darlington the edge over Kincardine when it comes to selecting a host community for a new Ontario nuclear plant, Energy Minister Gerry Phillips said.

The Liberal government plans to build Ontario's first new nuclear reactors in 15 years at the same sites as existing nuclear stations as part of a 20-year, $60-billion electricity supply plan. The two new reactors are expected to cost about $26 billion in total.

The province will decide by the end of June whether the first reactor will be built at Darlington and run by government-owned Ontario Power Generation, or at the privately owned Bruce Nuclear Plant near Kincardine.

Phillips said Hydro One, the government-owned transmission utility, is currently before the Ontario Energy Board seeking to enhance the Bruce-to-Milton transmission line.

"That (line) is one of the major constraints," Phillips said. "So that is a challenge, finding transmission out of Bruce. There's a certain advantage Darlington has there."

Phillips said the lack of transmission capacity from Lake Huron is also holding up about 1,000 megawatts of wind-power projects planned for southwestern Ontario.

"There's a bonus to that transmission line proceeding, and that is it'll give us a lot more clean, renewable energy," he said.

The limited transmission capacity also means OPG has a slight edge over Bruce Power when it comes to being the operator of the new station, but the New Democrats said today it doesn't really matter whether the nuclear plants are publicly or privately operated.

"From my perspective, it's six of one, half-dozen of the other," said NDP Leader Howard Hampton. "I think the real problem is it should be a public process, and it won't be. People know how much it's going to cost."

The Conservatives said they would prefer to see the private operators of the Bruce power station given the chance to operate a new reactor instead of sticking with OPG, which they noted has a history of cost overruns and delays on nuclear projects.

"I think having both sides as part of the equation and making the determination on which is best going to perform for the future security needs of the province (makes sense)," said Opposition Leader Bob Runciman. "My own bias is on the private side of it. I think they've done an outstanding job in Bruce."

After Phillips announces his site location and operator for the new nuclear reactor later this month, he will wait until the end of the year before choosing from three competing companies: Atomic Energy of Canada Ltd., American giant Westinghouse and French company AREVA NP.

As more countries consider building new nuclear plants for the first time in decades, construction and labour costs are being driven up around the world.

But Phillips said he isn't worried about rising construction costs, adding he is confident Ontario can negotiate a deal to protect consumers from cost overruns.

"I think we've got a good process for making sure we get the best possible deal," he said. "I think securing an Ontario plant is something any one of the (three competitors) would very much like, and I think that will help put a little downward pressure on the price."

But Hampton warned the public not to be fooled again by promises of on-budget and on-time nuclear projects, saying they always come in "way over" budget.

"Darlington was supposed to cost $4 billion, (but) when it was finally finished it cost almost $15 billion," Hampton said. "Most of our $20-billion hydro debt in Ontario is the result of nuclear plants that were built in the 1960s, '70s and '80s, and haven't been paid for yet."

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Nearly $1 Trillion in Investments Estimated by 2030 as Power Sector Transitions to a More Decarbonized and Flexible System

Distributed Energy Resources (DER) are surging as solar PV, battery storage, and demand response decarbonize power, cut costs, and boost grid resilience for utilities, ESCOs, and C&I customers through 2030.

 

Key Points

DER are small-scale, grid-connected assets like solar PV, storage, and demand response that deliver flexible power.

✅ Investments in DER to rise 75% by 2030; $846B in assets, $285B in storage.

✅ Residential solar PV: 49.3% of spend; C&I solar PV: 38.9% by 2030.

✅ Drivers: favorable policy, falling costs, high demand charges, decarbonization.

 

Frost & Sullivan's recent analysis, Growth Opportunities in Distributed Energy, Forecast to 2030, finds that the rate of annual investment in distributed energy resources (DER) will increase by 75% by 2030, with the market set for a decade of high growth. Favorable regulations, declining project and technology costs, and high electricity and demand charges are key factors driving investments in DER across the globe, with rising European demand boosting US solar equipment makers prospects in export markets. The COVID-19 pandemic will reduce investment levels in the short term, but the market will recover. Throughout the decade, $846 billion will be invested in DER, supported by a further $285 billion that will be invested in battery storage, with record solar and storage growth anticipated as installations and investments accelerate.

"The DER business model will play an increasingly pivotal role in the global power mix, as highlighted by BNEF's 2050 outlook and as part of a wider effort to decarbonize the sector," said Maria Benintende, Senior Energy Analyst at Frost & Sullivan. "Additionally, solar photovoltaic (PV) will dominate throughout the decade. Residential solar PV will account for 49.3% of total investment ($419 billion), though policy moves like a potential Solar ITC extension could pressure the US wind market, with commercial and industrial solar PV accounting for a further 38.9% ($330 billion)."

Benintende added: "In developing economies, DER offers a chance to bridge the electricity supply gap that still exists in a number of country markets. Further, in developed markets, DER is a key part of the transition to a cleaner and more resilient energy system, consistent with IRENA's renewables decarbonization findings across the energy sector."

DER offers significant revenue growth prospects for all key market participants, including:

  • Technology original equipment manufacturers (OEMs): Offer flexible after-sales support, including digital solutions such as asset integrity and optimization services for their installed base.
  • System integrators and installers: Target household customers and provide efficient and trustworthy solutions with flexible financial models.
  • Energy service companies (ESCOs): ESCOs should focus on adding DER deployments, in line with US decarbonization pathways and policy goals, to expand and enhance their traditional role of providing energy savings and demand-side management services to customers.

Utility companies: Deployment of DER can create new revenue streams for utility companies, from real-time and flexibility markets, and rapid solar PV growth in China illustrates how momentum in renewables can shape utility strategies.
Growth Opportunities in Distributed Energy, Forecast to 2030 is the latest addition to Frost & Sullivan's Energy and Environment research and analyses available through the Frost & Sullivan Leadership Council, which helps organizations identify a continuous flow of growth opportunities to succeed in an unpredictable future.

 

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Germany's Energy Crisis Deepens as Local Utilities Cry for Help

Germany energy liquidity crisis is straining municipal utilities as gas and power prices surge, margin calls rise, and Russian supply cuts bite, forcing state support, interventions, and emergency financing to stabilize households and businesses.

 

Key Points

A cash squeeze on German municipal utilities as soaring gas and power prices trigger margin calls and funding gaps.

✅ Margin calls and spot-market purchases strain cash flow

✅ State liquidity lines and EU collateral support proposed

✅ Gazprom cuts, Uniper distress heighten default risks

 

Germany’s fears that soaring power prices and gas prices could trigger a deeper crisis is starting to get real. 

Several hundred local utilities are coming under strain and need support, according to the head of Germany’s largest energy lobby group. The companies, generally owned by municipalities, supply households and small businesses directly and are a key part of the country’s power and gas network.

“The next step from the government and federal states must be to secure liquidity for these municipal companies,” Kerstin Andreae, chairwoman of the German Association of Energy and Water Industries, told Bloomberg in Berlin. “Prices are rising, and they have no more money to pay the suppliers. This is a big problem.”

Germany’s energy crunch intensified over the weekend after Russia’s Gazprom PJSC halted its key gas pipeline indefinitely, a stark wake-up call for policymakers to reduce fossil fuel dependence. European energy prices have surged again amid concerns over shortages this winter and fears of a worst-case energy scenario across the bloc. 

Many utilities are running into financial issues as they’re forced to cover missing Russian deliveries with expensive supplies on the spot market. German energy giant Uniper SE, which supplies local utilities, warned it will likely burn through a 7 billion-euro ($7 billion) government safety net and will need more help already this month.

Some German local utilities have already sought help, according to a government official, who asked not to be identified in line with briefing rules.  

With Europe’s largest economy already bracing for recession, Chancellor Olaf Scholz’s administration is battling on several fronts, testing the government’s financial capacity. The ruling coalition agreed Sunday on a relief plan worth about 65 billion euros -- part of an emerging energy shield package to contain the fallout of surging costs for households and businesses. 

Starting in October, local utilities will have to pay a levy for the gas acquired, which will further increase their financial burden, Andreae said.

Margin Calls
European gas prices are more than four times higher than usual for this time of year, underscoring why rolling back electricity prices is tougher than it appears for policymakers, as Russia cuts supplies in retaliation for sanctions related to its invasion of Ukraine. When prices peak, energy companies have to pay margin calls, extra collateral required to back their trades.

Read more: Energy Trade Risks Collapsing Over Margin Calls of $1.5 Trillion

The problem has hit local utilities in other countries as well. In Austria, the government approved a 2 billion-euro loan for Vienna’s municipal utility last month. 

The European Union is also planning help, floating gas price cap strategies among other tools. The bloc’s emergency measures will include support for electricity producers struggling to find enough cash to guarantee trades, according to European Commission President Ursula von der Leyen.

The situation has worsened in Germany as some of the country’s big gas importers are reluctant to sell more supplies to some of municipal companies amid fears they could default on payments, Andreae said. 

 

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New York Faces Soaring Energy Bills

New York faces soaring energy bills as utilities seek record rate hikes, aging grid infrastructure demands upgrades, and federal renewable policies shift. Consumers struggle with affordability, late payments, and rising costs of delivery and energy supply across the state.

 

Why is New York Facing Soaring Energy Bills?

New York faces soaring energy bills because utilities are raising rates to cover the costs of grid upgrades, inflation, and policy-driven changes in energy supply.

✅ Utilities seek double-digit rate hikes across the state

✅ Aging infrastructure and storm repairs increase delivery costs

✅ Federal policies and gas dependence push energy prices higher

New Yorkers are bracing for another wave of energy bill increases as utilities seek record-high rate hikes and policy changes ripple through the state’s power system. Electric bills in New York are the highest they’ve been in over a decade, and more than a million households are now at least two months behind on payments, a sign of pandemic energy insecurity that continues to strain budgets, owing utilities nearly $2 billion.

Record numbers of households have had their electricity or gas shut off this year — more than 61,000 in May alone — despite pandemic shut-off suspensions that had offered temporary relief, the highest the Public Utility Law Project (PULP) has ever recorded. “This August was the group’s busiest month ever,” said Laurie Wheelock, PULP’s executive director, citing a surge in calls to its hotline. “The top concern on people’s minds: rate hikes.”

Utilities across the state are pushing for significant price increases, citing aging infrastructure, the need for climate adaptation, and higher operating costs, as California regulators face calls for action amid rising bills. “We used to see single-digit rate hikes and now we see double-digit rate hikes,” said Jessica Azulay, executive director of the Alliance for a Green Economy. “That’s a new normal that is unacceptable.”

Several utilities have requested delivery rate increases of 25 percent or more, with some proposals as high as 39 percent. Upstate utilities NYSEG and RG&E are seeking to raise electric and gas bills by about $33 a month, although regulators are unlikely to approve the full amount.

The companies argue the hikes are needed “to pay for rebuilding an aging grid and expanding its capacity to meet residents’ and businesses’ service demands,” including storm repairs. They also claim the plan would create more than 1,000 jobs.

James Denn, a spokesperson for the Public Service Commission (PSC), said much of the cost pressure stems from “inflation, higher interest rates, supply chain disruptions, the global push to upgrade electrical infrastructure, and, most recently, the rising risk and uncertainty from tariffs,” trends reflected in U.S. electricity price data over the past two years.

While some have blamed New York’s clean-energy transition, a PSC report found that state climate policies account for only 5 to 9.5 percent of the average household’s electric bill, or approximately $10 to $12 per month. The bulk of the increases still come from traditional spending on infrastructure, storm resilience, and system expansion.

On the supply side, costs are rising too. President Donald Trump’s recent policies have threatened renewable-energy investment nationwide, even as states’ renewable ambitions carry significant costs, potentially adding to New York’s woes. His July “megabill” phases out a 30 percent federal tax credit for solar and wind unless projects begin construction by mid-2026. Industry experts warn that the changes could make renewables “more expensive to build” and “increase reliance on gas.”

“It just means more expensive power,” said Marguerite Wells of the Alliance for Clean Energy New York.

The state estimates Trump’s policy shifts could cost New York $60 billion in lost renewable investment. With fewer clean-energy projects moving forward, gas — which already supplies roughly half of the state’s electricity — will remain the dominant source, tying energy prices to volatile global markets and the kinds of price drivers seen in California in recent years.

Governor Kathy Hochul has called affordability “our greatest short-term challenge,” while consumer advocates are demanding reforms to reduce utility profits and overhaul “rate design,” and to strengthen protections such as the emergency disconnection moratorium that applies during declared emergencies.

“There is definitely a groundswell of concern,” Wheelock said. “We go to meetings and we’re getting questions about rate design, like, ‘What is the revenue decoupling mechanism?’ Never had that question before.”

 

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TransAlta brings online 119 MW of wind power in US

TransAlta Renewables US wind farms achieved commercial operation, adding 119 MW of wind energy capacity in Pennsylvania and New Hampshire, backed by PPAs with Microsoft, Partners Healthcare, and NHEC, and supported by tax equity financing.

 

Key Points

Two US wind projects totaling 119 MW, now online under PPAs and supported by tax equity financing.

✅ 119 MW online in Pennsylvania and New Hampshire

✅ PPAs with Microsoft, Partners Healthcare, and NHEC

✅ About USD 126 million raised via tax equity

 

TransAlta Renewables Inc says two US wind farms, with a total capacity of 119 MW and operated by its parent TransAlta Corp, became operational in December, amid broader build-outs such as Enel's 450-MW U.S. project coming online and, in Canada, Acciona's 280-MW Alberta wind farm advancing as well.

The 90-MW Big Level wind park in Pennsylvania started commercial operation on December 19. It sells power to technology giant Microsoft Corporation under a 15-year contract, reflecting big-tech procurement alongside Amazon's clean energy projects in multiple markets.

The 29-MW Antrim wind facility in New Hampshire is operational since December 24. It is selling power under 20-year contracts with Boston-based non-profit hospital and physicians network Partners Healthcare and New Hampshire Electric Co-op, mirroring East Coast activity at Amazon Wind Farm US East now fully operational.

The Canadian renewable power producer, which has economic interest in the two wind parks, said that upon their reaching commercial operations, it raised about USD 126 million (EUR 113m) of tax equity to partially fund the projects, as mega-deployments like Invenergy and GE's record North American project and capital plans such as a $200 million Alberta build by a Buffett-linked company underscore financing momentum.

"We continue to pursue additional growth opportunities, including potential drop-down transactions with TransAlta Corp," TransAlta Renewables president John Kousinioris commented.

The comment comes as TransAlta scrapped an Alberta wind project amid Alberta policy shifts.

 

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Purdue: As Ransomware Attacks Increase, New Algorithm May Help Prevent Power Blackouts

Infrastructure Security Algorithm prioritizes cyber defense for power grids and critical infrastructure, mitigating ransomware, blackout risks, and cascading failures by guiding utilities, regulators, and cyber insurers on optimal security investment allocation.

 

Key Points

An algorithm that optimizes security spending to cut ransomware and blackout risks across critical infrastructure.

✅ Guides utilities on optimal security allocation

✅ Uses incentives to correct human risk biases

✅ Prioritizes assets to prevent cascading outages

 

Millions of people could suddenly lose electricity if a ransomware attack just slightly tweaked energy flow onto the U.S. power grid, as past US utility intrusions have shown.

No single power utility company has enough resources to protect the entire grid, but maybe all 3,000 of the grid's utilities could fill in the most crucial security gaps if there were a map showing where to prioritize their security investments.

Purdue University researchers have developed an algorithm to create that map. Using this tool, regulatory authorities or cyber insurance companies could establish a framework for protecting the U.S. power grid that guides the security investments of power utility companies to parts of the grid at greatest risk of causing a blackout if hacked.

Power grids are a type of critical infrastructure, which is any network - whether physical like water systems or virtual like health care record keeping - considered essential to a country's function and safety. The biggest ransomware attacks in history have happened in the past year, affecting most sectors of critical infrastructure in the U.S. such as grain distribution systems in the food and agriculture sector and the Colonial Pipeline, which carries fuel throughout the East Coast, prompting increased military preparation for grid hacks in the U.S.

With this trend in mind, Purdue researchers evaluated the algorithm in the context of various types of critical infrastructure in addition to the power sector, including electricity-sector IoT devices that interface with grid operations. The goal is that the algorithm would help secure any large and complex infrastructure system against cyberattacks.

"Multiple companies own different parts of infrastructure. When ransomware hits, it affects lots of different pieces of technology owned by different providers, so that's what makes ransomware a problem at the state, national and even global level," said Saurabh Bagchi, a professor in the Elmore Family School of Electrical and Computer Engineering and Center for Education and Research in Information Assurance and Security at Purdue. "When you are investing security money on large-scale infrastructures, bad investment decisions can mean your power grid goes out, or your telecommunications network goes out for a few days."

Protecting infrastructure from hacks by improving security investment decisions

The researchers tested the algorithm in simulations of previously reported hacks to four infrastructure systems: a smart grid, industrial control system, e-commerce platform and web-based telecommunications network. They found that use of this algorithm results in the most optimal allocation of security investments for reducing the impact of a cyberattack.

The team's findings appear in a paper presented at this year's IEEE Symposium on Security and Privacy, the premier conference in the area of computer security. The team comprises Purdue professors Shreyas Sundaram and Timothy Cason and former PhD students Mustafa Abdallah and Daniel Woods.

"No one has an infinite security budget. You must decide how much to invest in each of your assets so that you gain a bump in the security of the overall system," Bagchi said.

The power grid, for example, is so interconnected that the security decisions of one power utility company can greatly impact the operations of other electrical plants. If the computers controlling one area's generators don't have adequate security protection, as seen when Russian hackers accessed control rooms at U.S. utilities, then a hack to those computers would disrupt energy flow to another area's generators, forcing them to shut down.

Since not all of the grid's utilities have the same security budget, it can be hard to ensure that critical points of entry to the grid's controls get the most investment in security protection.

The algorithm that Purdue researchers developed would incentivize each security decision maker to allocate security investments in a way that limits the cumulative damage a ransomware attack could cause. An attack on a single generator, for instance, would have less impact than an attack on the controls for a network of generators, which sophisticated grid-disruption malware can target at scale, rather than for the protection of a single generator.

Building an algorithm that considers the effects of human behavior

Bagchi's research shows how to increase cybersecurity in ways that address the interconnected nature of critical infrastructure but don't require an overhaul of the entire infrastructure system to be implemented.

As director of Purdue's Center for Resilient Infrastructures, Systems, and Processes, Bagchi has worked with the U.S. Department of Defense, Northrop Grumman Corp., Intel Corp., Adobe Inc., Google LLC and IBM Corp. on adopting solutions from his research. Bagchi's work has revealed the advantages of establishing an automatic response to attacks, and analyses like Symantec's Dragonfly report highlight energy-sector risks, leading to key innovations against ransomware threats, such as more effective ways to make decisions about backing up data.

There's a compelling reason why incentivizing good security decisions would work, Bagchi said. He and his team designed the algorithm based on findings from the field of behavioral economics, which studies how people make decisions with money.

"Before our work, not much computer security research had been done on how behaviors and biases affect the best defense mechanisms in a system. That's partly because humans are terrible at evaluating risk and an algorithm doesn't have any human biases," Bagchi said. "But for any system of reasonable complexity, decisions about security investments are almost always made with humans in the loop. For our algorithm, we explicitly consider the fact that different participants in an infrastructure system have different biases."

To develop the algorithm, Bagchi's team started by playing a game. They ran a series of experiments analyzing how groups of students chose to protect fake assets with fake investments. As in past studies in behavioral economics, they found that most study participants guessed poorly which assets were the most valuable and should be protected from security attacks. Most study participants also tended to spread out their investments instead of allocating them to one asset even when they were told which asset is the most vulnerable to an attack.

Using these findings, the researchers designed an algorithm that could work two ways: Either security decision makers pay a tax or fine when they make decisions that are less than optimal for the overall security of the system, or security decision makers receive a payment for investing in the most optimal manner.

"Right now, fines are levied as a reactive measure if there is a security incident. Fines or taxes don't have any relationship to the security investments or data of the different operators in critical infrastructure," Bagchi said.

In the researchers' simulations of real-world infrastructure systems, the algorithm successfully minimized the likelihood of losing assets to an attack that would decrease the overall security of the infrastructure system.

Bagchi's research group is working to make the algorithm more scalable and able to adapt to an attacker who may make multiple attempts to hack into a system. The researchers' work on the algorithm is funded by the National Science Foundation, the Wabash Heartland Innovation Network and the Army Research Lab.

Cybersecurity is an area of focus through Purdue's Next Moves, a set of initiatives that works to address some of the greatest technology challenges facing the U.S. Purdue's cybersecurity experts offer insights and assistance to improve the protection of power plants, electrical grids and other critical infrastructure.

 

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Can the Electricity Industry Seize Its Resilience Moment?

Hurricane Grid Resilience examines how utilities manage outages with renewables, microgrids, and robust transmission and distribution systems, balancing solar, wind, and batteries to restore service, harden infrastructure, and improve storm response and recovery.

 

Key Points

Hurricane grid resilience is a utility approach to withstand storms, reduce outages, and speed safe power restoration.

✅ Focus on T&D hardening, vegetation management, remote switching

✅ Balance generation mix; integrate solar, wind, batteries, microgrids

✅ Plan 12-hour shifts; automate forecasting and outage restoration

 

When operators of Duke Energy's control room in Raleigh, North Carolina wait for a hurricane, the mood is often calm in the hours leading up to the storm.

“Things are usually fairly quiet before the activity starts,” said Mark Goettsch, the systems operations manager at Duke. “We’re anxiously awaiting the first operation and the first event. Once that begins, you get into storm mode.”

Then begins a “frenzied pace” that can last for days — like when Hurricane Florence parked over Duke’s service territory in September.

When an event like Florence hits, all eyes are on transmission and distribution. Where it’s available, Duke uses remote switching to reconnect customers quickly. As outages mount, the utility forecasts and balances its generation with electricity demand.

The control center’s four to six operators work 12-hour shifts, while nearby staff members field thousands of calls and alarms on the system. After it’s over, “we still hold our breath a little bit to make sure we’ve operated everything correctly,” said Goettsch. Damage assessment and rebuilding can only begin once a storm passes.

That cycle is becoming increasingly common in utility service areas like Duke's.

A slate of natural disasters that reads like a roll call — Willa, Michael, Harvey, Irma, Maria, Florence and Thomas — has forced a serious conversation about resiliency. And though Goettsch has heard a lot about resiliency as a “hot topic” at industry events and meetings, those conversations are only now entering Duke’s control room.

Resilience discussions come and go in the energy industry. Storms like Hurricane Sandy and Matthew can spur a nationwide focus on resiliency, but change is largely concentrated in local areas that experienced the disaster. After a few news cycles, the topic fades into the background.

However, experts agree that resilience is becoming much more important to year-round utility planning and operations as utilities pursue decarbonization goals across their fleets. It's not a fad.

“If you look at the whole ecosystem of utilities and vendors, there’s a sense that there needs to be a more resilient grid,” said Miki Deric, Accenture’s managing director of utilities, transmission and distribution for North America. “Even if they don’t necessarily agree on everything, they are all working with the same objective.”

Can renewables meet the challenge?

After Hurricane Florence, The Intercept reported on coal ash basins washed out by the storm’s overwhelming waters. In advance of that storm, Duke shut down one nuclear plant to protect it from high winds. The Washington Post also recently reported on a slowly leaking oil spill, which could surpass Deepwater Horizon in size, caused by Hurricane Ivan in 2004.

Clean energy boosters have seized on those vulnerabilities.They say solar and wind, which don’t rely on access to fuel and can often generate power immediately after a storm, provide resilience that other electricity sources do not.

“Clearly, logistics becomes a big issue on fossil plants, much more than renewable,” said Bruce Levy, CEO and president at BMR Energy, which owns and operates clean energy projects in the Caribbean and Latin America. “The ancillaries around it — the fuel delivery, fuel storage, water in, water out — are all as susceptible to damage as a renewable plant.”

Duke, however, dismissed the notion that one generation type could beat out another in a serious storm.

“I don’t think any generation source is immune,” said Duke spokesperson Randy Wheeless. “We’ve always been a big supporter of a balanced energy mix, reflecting why the grid isn't 100% renewable in practice today. That’s going to include nuclear and natural gas and solar and renewables as well. We do that because not every day is a good day for each generation source.”

In regard to performance, Wade Schauer, director of Americas Power & Renewables Research at Wood Mackenzie, said the situation is “complex.” According to him, output of solar and wind during a storm depends heavily on the event and its location.

While comprehensive data on generation performance is sparse, Schauer said coal and gas generators could experience outages at 25 percent while stormy weather might cut 95 percent of output from renewables, underscoring clean energy's dirty secret about variability under stress. Ahead of last year’s “bomb cyclone” in New England, WoodMac data shows that wind dropped to less than 1 percent of the supply mix.

“When it comes to resiliency, ‘average performance’ doesn't cut it,” said Schauer.

In the future, he said high winds could impact all U.S. offshore wind farms, since projects are slated for a small geographic area in the Northeast. He also pointed to anecdotal instances of solar arrays in New England taken out by feet of snow. During Florence, North Carolina’s wind farms escaped the highest winds and continued producing electricity throughout. Cloud cover, on the other hand, pushed solar production below average levels.

After Florence passed, Duke reported that most of its solar came online quickly, although four of its utility-owned facilities remained offline for weeks afterward. Only one was because of damage; the other three remained offline due to substation interconnection issues.

“Solar performed pretty well,” said Wheeless. “But did it come out unscathed? No.”

According to installer reports, solar systems fared relatively well in recent storms, even as the Covid-19 impact on renewables constrained projects worldwide. But the industry has also highlighted potential improvements. Following Hurricanes Maria and Irma, the Federal Emergency Management Agency published guidelines for installing and maintaining storm-resistant solar arrays. The document recommended steps such as annual checks for bolt tightness and using microinverters rather than string inverters.

Rocky Mountain Institute (RMI) also assembled a guide for retrofitting and constructing new installations. It described attributes of solar systems that survived storms, like lateral racking supports, and those that failed, like undersized and under-torqued bolts.

“The hurricanes, as much as no one liked them, [were] a real learning experience for folks in our industry,” said BMR’s Levy. “We saw what worked, and what didn’t.”          

Facing the "800-pound gorilla" on the grid

Advocates believe wind, solar, batteries and microgrids offer the most promise because they often rely less on transmitting electricity long distances and could support peer-to-peer energy models within communities.

Most extreme weather outages arise from transmission and distribution problems, not generation issues. Schauer at WoodMac called storm damage to T&D the “800-pound gorilla.”

“I'd be surprised if a single customer power outage was due to generators being offline, especially since loads where so low due to mild temperatures and people leaving the area ahead of the storm,” he said of Hurricane Florence. “Instead, it was wind [and] tree damage to power lines and blown transformers.”

 

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