OPA delays release of 20-year plan

Texas Power Grid Crisis strains ERCOT as extreme cold, ice storms, and heavy snow trigger rolling blackouts, load shedding, and boil-water notices, leaving millions without electricity while frozen turbines and low gas pressure hinder generation.

Key Points

A statewide emergency of outages and boil-water notices as ERCOT battles extreme cold and load shedding.

✅ Millions without power; ERCOT orders load shedding

✅ Boil-water notices in Austin, Houston, Fort Worth

✅ Frozen equipment, low gas pressure, extreme cold disrupt supply

Nearly 3 million homes and businesses in Texas remain without power, some for a third consecutive day, as severe winter weather continues to pummel the state, forcing some localities to issue boil-water notices and urge residents to reduce their electricity usage.

Heavy snowfall, ice storms and bitter temperatures continue to put an enormous strain on the state's power grid. This as the Electric Reliability Council of Texas (ERCOT), which manages roughly 75% of the Texas power grid, announced Wednesday morning that some 600,000 households had power restored overnight.

That still left another 2.7 million customers having to endure extreme cold with no indication of when the thaw would break in their homes.

"We know millions of people are suffering," ERCOT's president and CEO, Bill Magness, said in a statement Wednesday. "We have no other priority than getting them electricity. No other priority."

ERCOT also said Wednesday that it was urging local utilities to shed some 14,000 megawatts of load, which translates to roughly 2.8 million customers, to prepare for a sudden increase in demand.

"The ability to restore more power is contingent on more generation coming back online," said Dan Woodfin, the senior director of ERCOT's system operations, and utility supply-chain constraints can further complicate repair timelines for some utilities.

He said that about 185 generating units were offline, stemming from a range of factors including frozen wind turbines, low gas pressure and frozen instrumentation.

But many Texans feel abandoned by the council and power companies and they are lashing out at the local face of utilities.

The City of Austin's community-owned electric utility, Austin Energy, issued a tweet saying crews that are working to restore power are facing harassment.

"Our crews have been working 24/7 and in these elements," Austin Energy announced. "Some of our crews are reporting incidents of harassment, threatening them and even throwing things at them."

Officials pleaded with the public to remain calm. "I know people are extremely frustrated. But please, I bet of you, do not approach AE crews."

Parts of Austin are under a boil water notice, which Austin Water Director Greg Meszaros attempted to explain during a press briefing Wednesday afternoon.

"There was a large main break in that area, maybe multiple ones. We're seeing main breaks and pipes bursting by the tens of thousands. Our entire system is under stress," Meszaros said.

It's not just the Lone Star State that is being crippled by the arctic blast, with a deep freeze slamming the energy sector across the country.

At least two dozen people have died this week from weather-related incidents, according to The Associated Press.

The National Weather Service reports that more than 100 million Americans are being affected by extreme winter weather from the south central U.S. to the East Coast, including Arkansas, Louisiana, Mississippi, North Carolina, Virginia and West Virginia, and analysts warn of blackout risks nationwide during extreme heat as well.

The National Weather Service adds that cold temperatures over the nation's heartland will begin to "moderate in the coming days" but that many parts will remain 20 to 35 degrees below normal in the Great Plains, Mississippi Valley and lower Great Lakes region.

"Potential is increasing for significant icing across portions of the Mid-Atlantic, which will be very impactful, especially for those hardest hit from the previous ice storm," the National Weather Service tweeted Wednesday.

Texas Gov. Greg Abbott railed against ERCOT, and Elon Musk criticized the agency as unreliable, saying the utility "has been anything but reliable over the past 48 hours."

"This is unacceptable," Abbott added, as residents were facing rotating intentional power outages. The governor issued an executive order that will add reforms for how the power grid is managed, including grid reliability improvements under discussion, as an emergency legislative item for the state legislature to review.

The rolling power outages forced Fort Worth to extend a boil-water notice for roughly 212,000 residents. Officials said the outages affected the city's systems that both treat water and move it to customers.

Fort Worth officials said nine other localities that purchase water from the city are also affected, including Haslet, Keller, Lake Worth and Northlake.

Officials in Houston also issued a boil-water notice for the city's residents Wednesday.

"Do not drink the water without boiling it first," Houston Public Works said from its official Twitter account. "Bring all water to a boil for at least two minutes. Let it cool before using."

In Harris County, which includes Houston, Judge Lina Hidalgo warned residents about extended power outages.

"Let me give it to you straight, based on the visibility I have: Whether you have power or not right now, there is a possibility of power outages even beyond the length of this weather," Hidalgo said, according to Houston Public Media.

The NPR member station adds that county officials have also reported more than 300 cases of carbon monoxide poisoning since Monday as residents going without electricity search desperately for alternative sources of warmth.

"In no uncertain terms, this is a public health disaster and a public health emergency," Samuel Prater, an emergency physician at Memorial Hermann-Texas Medical Center, said at a news briefing Tuesday.

Prater warned residents that over the last 24 hours, emergency officials "have seen a striking increase in the number of cases related to improper heating sources," including indoor use of generators, charcoal grills, campfire stoves and other devices that are being used to warm homes. The result, he added, is carbon monoxide poisoning of entire families.

"If you think you or a loved one has become ill from carbon monoxide poisoning, first thing you need to do is get outside to fresh air," Prater said.

A woman and an 8-year-old girl are among those who have reportedly died from carbon monoxide poisoning after a vehicle was left running inside a garage in an attempt to generate heat, according to Houston's ABC affiliate.

As Texas endures further weather-related issues, including road and highway closures, there's a renewed focus on how the Texas power grid has failed, and why the grid is facing another crisis amid this prolonged cold.

The Texas electrical grid is "facing conditions that it was not designed for," said Emily Grubert, a professor at Georgia Tech whose expertise includes electric networks.

"These are really extreme conditions for the Texas grid. It's very cold. It's cold across the entire state, and it's cold for a long time. This does not happen very often," she said in an interview with NPR's Morning Edition.

"Demand really spiked both in the electricity and the natural gas systems at the same time as a lot of the generators were not able to operate because of those cold conditions, and not being prepared for it is really what's going on," Grubert said. "But a lot of grids are susceptible to really, really major failures when they are this far outside of design conditions."

Abbott told Fox News on Tuesday that with weather-related shutdowns in wind and solar energy, which account for more than 10% of the state's grid, renewable energy is partly to blame for the Texas power crisis, even as he later touted the grid's readiness heading into the fall.

"It just shows that fossil fuel is necessary for the state of Texas as well as other states to make sure that we'll be able to heat our homes in the wintertime and cool our homes in the summertime," Abbott said.

But Grubert said that "coal, gas and nuclear actually shut down because of the extreme cold due to things like instruments freezing, et cetera. So I think the overall point here is all of the fuels were really, really struggling."

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OEB Disconnection Ban shields Ontario residential customers under the stay-at-home order, pausing electricity distributor shutoffs for non-payment and linking COVID-19 Energy Assistance Program credits for small businesses, charities, and overdue utility bills.

Key Points

A pause on electricity shutoff notices during Ontario's stay-at-home order, with COVID-19 bill credits for customers.

✅ Distributors cannot issue residential disconnection notices.

✅ Applies through the stay-at-home order timeline.

✅ CEAP credits: $750 residential; $1,500 small biz and charities.

With Ontario now into the third province-wide lockdown, the Ontario Energy Board (OEB) has promised residents won't have to worry about their power being shut off.

On April 8, the Province issued the third stay-at-home order in the last 13 months which is scheduled to last for 28 days until at least May 6, as electricity rates and policies continue to shift.

On April 30, the annual winter disconnection ban is set to expire, meaning electricity distributors like Hydro One would normally be permitted to issue disconnection notices for non-payment as early as 14 days before the end of the ban.

However, the OEB has announced changes for electricity consumers that prohibit electricity distributors from issuing disconnection notices to residential customers for the entirety of the stay-at-home order.

Additionally, the COVID-19 Energy Assistance Program is available for residential, small business, and registered charity customers who have overdue amounts on their electricity or gas bills as a result of the pandemic, complementing support for electric bills introduced during COVID-19, and the fixed COVID-19 hydro rate that helped stabilize costs.

Those who meet these criteria are eligible for credits up to a maximum of $750 for residential customers and $1,500 for small businesses and charities, alongside earlier moves to set an off-peak price to ease costs.

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Enegix Base One Green Hydrogen Plant will produce renewable hydrogen via electrolysis in Ceara, Brazil, leveraging 3.4 GW baseload renewables, offshore wind, and hydro to scale clean energy, storage, and export logistics.

Key Points

A $5.4bn Ceara, Brazil project to produce 600m kg of green hydrogen annually using 3.4 GW of baseload renewables.

✅ 3.4 GW baseload from hydro and offshore wind pipelines

✅ Targets 600m kg green hydrogen per year via electrolysis

✅ Focus on storage, transport, and export supply chains

In March, Enegix Energy announced some of the most ambitious hydrogen plans the world has ever seen. The company signed a memorandum of understanding (MOU) with the government of the Brazilian state of Ceará to build the world’s largest green hydrogen plant in the state on the country’s north-eastern coast, and the figures are staggering.

The Base One facility will produce more than 600 million kilograms of green hydrogen annually from 3.4GW of baseload renewable energy, and receive $5.4bn in investment to get the project off the ground and producing within four years.

Green hydrogen, hydrogen produced by electrolysis that is powered by renewables, has significant potential as a clean energy source. Already seeing increased usage in the transport sector, the power source boasts the energy efficiency and the environmental viability to be a cornerstone of the world’s energy mix.

Yet practical challenges have often derailed large-scale green hydrogen projects, from the inherent obstacle of requiring separate renewable power facilities to the logistical and technological challenges of storing and transporting hydrogen. Could vast investment, clever planning, and supportive governments and programs like the DOE’s hydrogen hubs initiative help Enegix to deliver on green hydrogen’s oft-touted potential?

Brazilian billions
The Base One project is exceptional not only for its huge scale, but the timing of its construction, with demand for hydrogen set to increase dramatically over the next few decades. Figures from Wood Mackenzie suggest that hydrogen could account for 1.4 billion tonnes of energy demand by 2050, one-tenth of the world’s supply, with green hydrogen set to be the majority of this figure.

Yet considering that, prior to the announcement of the Enegix project, global green hydrogen capacity was just 94MW, advances in offshore green hydrogen and the development of a project of this size and scope could scale up the role of green hydrogen by orders of magnitude.

“We really need to [advance clean energy] without any emissions on a completely clean, carbon neutral and net-zero framework, and so we needed access to a large amount of green energy projects,” explains Wesley Cooke, founder and CEO of Enegix, a goal aligned with analyses that zero-emissions electricity by 2035 is possible, discussing the motivation behind the vast project.

With these ambitious goals in mind, the company needed to find a region with a particular combination of political will and environmental traits to enable such a project to take off.

“When we looked at all of these key things: pipeline for renewables, access to water, cost of renewables, and appetite for renewables, Brazil really stood out to us,” Cooke continues. “The state of Ceará, that we’ve got an MOU with the government in at the moment, ticks all of these boxes.”

Ceará’s own clean energy plans align with Enegix’s, at least in terms of their ambition and desire for short-term development. Last October, the state announced that it plans to add 5GW of new offshore wind capacity in the next five years. With BI Energia alone providing $2.5bn in investment for its 1.2GW Camocim wind facility, there is significant financial muscle behind these lofty ambitions.

“One thing I should add is that Brazil is very blessed when it comes to baseload renewables,” says Cooke. “They have an incredibly high percentage of their country-wide energy that comes from renewable sources and a lot of this is in part due to the vast hydro schemes that they have for hydro dams. Not a lot of countries have that, and specifically when you’re trying to produce hydrogen, having access to vast amounts of renewables [is vital].”

Changing perceptions and tackling challenges
This combination of vast investment and integration with the existing renewable power infrastructure of Ceará could have cultural impacts too. The combination of state support for and private investment in clean energy offsets many of the narratives emerging from Brazil concerning its energy policies and environmental protections, even as debates over clean energy's trade-offs persist in Brazil and beyond, from the infamous Brumadinho disaster to widespread allegations of illegal deforestation and gold mining.

“I can’t speak for the whole of Brazil, but if we look at Ceará specifically, and even from what we’ve seen from a federal government standpoint, they have been talking about a hydrogen roadmap for Brazil for quite some time now,” says Cooke, highlighting the state’s long-standing support for green hydrogen. “I think we came in at the perfect time with a very solid plan for what we wanted to do, [and] we’ve had nothing but great cooperation, and even further than just cooperation, excitement around the MOU.”

This narrative shift could help overcome one of the key challenges facing many hydrogen projects, the idea that its practical difficulties render it fundamentally unsuitable for baseload power generation. By establishing a large-scale green hydrogen facility in a country that has recently struggled to present itself as one that is invested in renewables, the Base One facility could be the ultimate proof that such clean hydrogen projects are viable.

Nevertheless, practical challenges remain, as is the case with any energy project of this scale. Cooke mentions a number of solutions to two of the obstacles facing hydrogen production around the world: renewable energy storage and transportation of the material.

“We were looking at compressed hydrogen via specialised tankers [and] we were looking at liquefied hydrogen, [as] you have to get liquefied hydrogen very cool to around -253°, and you can use 30% to 40% of your total energy that you started with just to get it down to that temperature,” Cooke explains.

“The other aspect is that if you’re transporting this internationally, you really have to think about the supply chain. If you land in a country like Indonesia, that’s wonderful, but how do you get it from Indonesia to the customers that need it? What is the supply chain? What does that look like? Does it exist today?”

The future of green hydrogen
These practical challenges present something of a chicken and egg problem for the future of green hydrogen: considerable up-front investment is required for functions such as storage and transport, but the difficulties of these functions can scare off investors and make such investments uncommon.

Yet with the world’s environmental situation increasingly dire, more dramatic, and indeed risky, moves are needed to alter its energy mix, and Enegix is one company taking responsibility and accepting these risks.

“We need to have the renewables to match the dirty fuel types,” Cooke says. “This [investment] will really come from the decisions that are being made right now by large-scale companies, multi-billion-euro-per-year revenue companies, committing to building out large scale factories in Europe and Asia, to support PEM [hydrolysis].”

This idea of large-scale green hydrogen is also highly ambitious, considering the current state of the energy source. The International Renewable Energy Agency reports that around 95% of hydrogen comes from fossil fuels, so hydrogen has a long ways to go to clean up its own carbon footprint before going on to displace fossil fuel-driven industries.

Yet this displacement is exactly what Enegix is targeting. Cooke notes that the ultimate goal of Enegix is not simply to increase hydrogen production for use in a single industry, such as clean vehicles. Instead, the idea is to develop green hydrogen infrastructure to the point where it can replace coal and oil as a source of baseload power, leapfrogging other renewables to form the bedrock of the world’s future energy mix.

“The problem with [renewable] baseload is that they’re intermittent; the wind’s not always blowing and the sun’s not always shining and batteries are still very expensive, although that is changing. When you put those projects together and look at the levelised cost of energy, this creates a chasm, really, for baseload.

“And for us, this is really where we believe that hydrogen needs to be thought of in more detail and this is what we’re really evangelising about at the moment.”

A more hydrogen-reliant energy mix could also bring social benefits, with Cooke suggesting that the same traits that make hydrogen unwieldy in countries with established energy infrastructures could make hydrogen more practically viable in other parts of the world.

“When you look at emerging markets and developing markets at the moment, the power infrastructure in some cases can be quite messy,” Cooke says. “You’ve got the potential for either paying for the power or extending your transmission grid, but rarely being able to do both of those.

“I think being able to do that last mile piece, utilising liquid organic hydrogen carrier as an energy vector that’s very cost-effective, very scalable, non-toxic, and non-flammable; [you can] get that power where you need it.

“We believe hydrogen has the potential to be very cost-effective at scale, supporting a vision of cheap, abundant electricity over time, but also very modular and usable in many different use cases.”

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Canada's First Commercial Electric Flight accelerates sustainable aviation, showcasing electric aircraft, pilot training, battery propulsion, and noise reduction, aligning with net-zero goals and e-aviation innovation across commercial, regional, and training operations.

Key Points

Canada's electric flight advances sustainable aviation, proving e-aircraft viability and pilot training readiness.

✅ Battery-electric propulsion cuts emissions and noise

✅ New curricula prepare pilots for electric systems and procedures

✅ Supports net-zero goals through green aviation infrastructure

Canada, renowned for its vast landscapes and pioneering spirit, has achieved a significant milestone in aviation history with its first commercial electric flight. This groundbreaking achievement marks a pivotal moment in the transition towards sustainable aviation and an aviation revolution for the sector, highlighting Canada's commitment to reducing carbon emissions and embracing innovative technologies.

The inaugural commercial electric flight in Canada not only showcases the capabilities of electric aircraft, with examples like Harbour Air's prototype flight demonstrating feasibility, but also underscores the importance of pilot training in advancing e-aviation. As the aviation industry explores cleaner and greener alternatives to traditional fossil fuel-powered aircraft, pilot training plays a crucial role in preparing aviation professionals for the future of sustainable flight.

Electric aircraft, powered by batteries instead of conventional jet fuel, offer numerous environmental benefits, including lower greenhouse gas emissions and reduced noise pollution, though Canada's 2019 electricity mix still included some fossil generation that can affect lifecycle impacts. These advantages align with Canada's ambitious climate goals and commitment to achieving net-zero emissions by 2050. By investing in e-aviation, Canada aims to lead by example in the global effort to decarbonize the aviation sector and mitigate the impacts of climate change.

The success of Canada's first commercial electric flight is a testament to collaborative efforts between industry stakeholders, government support, and technological innovation. Electric aircraft manufacturers have made significant strides in developing reliable and efficient electric propulsion systems, with research investment helping advance prototypes and certification, paving the way for broader adoption of e-aviation across commercial and private sectors.

Pilot training programs tailored for electric aircraft are crucial in ensuring the safe and effective operation of these advanced technologies, as operators target first electric passenger flights across regional routes. Canadian aviation schools and training institutions are at the forefront of integrating e-aviation into their curriculum, equipping future pilots with the skills and knowledge needed to navigate electric aircraft systems and procedures.

Moreover, the introduction of commercial electric flights in Canada opens new opportunities for aviation enthusiasts, environmental advocates, and stakeholders interested in sustainable transportation solutions. The shift towards e-aviation represents a paradigm shift in how air travel is perceived and executed, emphasizing efficiency, environmental stewardship, and technological innovation.

Looking ahead, Canada's role in advancing e-aviation extends beyond pilot training to include research and development, infrastructure investment, and policy support. Collaborative initiatives with industry partners and international counterparts, including Canada-U.S. collaboration on electrification, will be essential in accelerating the adoption of electric aircraft and establishing a robust framework for sustainable aviation practices.

In conclusion, Canada's first commercial electric flight marks a significant milestone in the journey towards sustainable aviation. By pioneering e-aviation through pilot training and technological innovation, Canada sets a precedent for global leadership in reducing carbon emissions and shaping the future of air transportation. As electric aircraft become more prevalent in the skies, Canada's commitment to sustainability and ambitious EV goals at the national level will continue to drive progress towards a cleaner, greener future for aviation worldwide.

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ComEd Smart Grid Reliability drives outage reduction across Illinois, leveraging smart switches, grid modernization, and peak demand programs to keep customers powered, improve power quality, and enhance energy savings during extreme weather and severe storms.

Key Points

ComEd's smart grid performance, cutting outages and improving power quality to enhance reliability and customer savings.

✅ Smart switches reroute power to avoid customer interruptions

✅ Fewer outages during extreme weather across northern Illinois

✅ Peak Time Savings rewards for reduced peak demand usage

While the summer of 2019 set records for heat and brought severe storms, ComEd customers stayed cool thanks to record-setting reliability during the season. These smart grid investments over the last seven years helped to set records in key reliability measurements, including frequency of outages metrics, and through smart switches that reroute power around potential problem areas, avoided more than 538,000 customer interruptions from June to August.

"In a summer where we were challenged by extreme weather, we saw our smart grid investments and our people continue to deliver the highest levels of reliability, backed by extensive disaster planning across utilities, for the families and businesses we serve," said Joe Dominguez, CEO of ComEd. "We're proud to deliver the most affordable, cleanest and, as we demonstrated this summer, most reliable energy to our customers. I want to thank our 6,000 employees who work around the clock in often challenging conditions to power our communities."

ComEd has avoided more than 13 million customer interruptions since 2012, due in part to smart grid and system improvements. The avoided outages have resulted in $2.4 billion in estimated savings to society. In addition to keeping energy flowing for residents, strong power reliability continues to help persuade industrial and commercial companies to expand in northern Illinois and Chicago. The GridWise Alliance recently recognized Illinois as the No. 2 state in the nation for its smart grid implementation.

"Our smart grid investments has vastly improved the infrastructure of our system," said Terry Donnelly, ComEd president and chief operating officer. "We review the system and our operations continually to make sure we're investing in areas that benefit the greatest number of customers, and to prepare for public-health emergencies as well. On a daily basis and during storms or to reduce wildfire risk when necessary, our customers are seeing fewer and fewer interruptions to their lives and businesses."

ComEd customers also set records for energy savings this summer. Through its Peak Time Savings program and other energy-efficiency programs offered by utilities, ComEd empowered nearly 300,000 families and individuals to lower their bills by a total of more than $4 million this summer for voluntarily reducing their energy use during times of peak demand. Since the Peak Time Savings program launched in 2015, participating customers have earned a total of more than $10 million in bill credits.

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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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