California utility pressing for Arizona link

By Arizona Daily Star


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A major California utility trying to shore up its sources of electricity isn't giving up its fight to build a major transmission line despite Arizona regulators' attempt to short-circuit the project.

The 230-mile, high-voltage line would make it easier for Southern California Edison, a utility serving most of Southern California, to import electricity available from natural gas-fueled generating plants in Arizona.

However, the Arizona Corporation Commission rejected the project on May 30, saying its environmental features and potential economic benefits were one-sided in favor of California at Arizona's expense.

Since then, Edison has unsuccessfully asked the commission to reconsider its denial and then filed a lawsuit that contends, among other things, that the commission's rejection of the project illegally interferes with interstate commerce.

Edison and the Arizona commission recently agreed to put the lawsuit on hold until next March while the utility considers unspecified alternatives, though one Arizona commissioner told The Associated Press in an interview that he wasn't impressed by what he'd heard so far.

Looming in the background is the possibility that Edison could try to circumvent the Arizona regulators' denial by seeking federal approval of the project as part of a critical energy corridor.

The continued wrangling over the proposed power line comes as California utilities strain the meet their customers' demand for electricity, a situation aggravated last week by high temperatures.

California's electricity grid manager declared a minor power emergency as the state's operating energy reserves dipped below 7 percent, a step that triggered conservation efforts by state agencies and a call for residents to conserve power use during hot afternoon hours.

Known as Devers-Palo Verde No. 2, the line would cross the desert of Southwestern Arizona and southeastern California, largely paralleling an existing line and linking a power switching yard 40 miles from Phoenix with a substation 10 miles from Palm Springs.

Edison spokesman Paul Klein said the legal hold put on the lawsuit gives Edison time to "pursue other options" that he declined to discuss.

However, Corporation Commission member Bill Mundell said Edison officials have suggested adding an interconnection point somewhere along the line so that it would be more helpful to Arizona's use of the Western power grid.

"That was the only one of substance that they mentioned," Mundell said. "I'll certainly listen to their proposal with an open mind but there needs to be additional benefits."

Mundell, who during the May 30 meeting said he didn't want Arizona to be "an energy farm for California," contends California hasn't done enough to build new plants to meet the energy needs of itself and the region.

Mundell and other Arizona commissioners contend building the line would mean lower electricity prices for California utility customers but higher ones for Arizonans.

An Aug. 14 letter signed by all five Arizona commissioners to members of the state's congressional delegation says the U.S. Department of Energy's expected designation of a high-priority electricity corridor in Arizona, California and Nevada "certainly" will lead to Edison's asking federal officials to authorize the line.

"Our worst nightmare has come true," Mundell said, referring to the Arizona commission's earlier concerns about how the Energy Policy Act of 2005 could be implemented.

Klein, the Edison spokesman, declined to discuss whether the company intends to seek federal authorization for the line.

"At this point we're just looking at all of our options," he said.

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Covid-19 crisis hits solar and wind energy industry

COVID-19 Impact on US Renewable Energy disrupts solar and wind projects, dries up tax equity financing, strains supply chains, delays construction, and slows jobs growth amid limited federal stimulus and uncertain investor appetite.

 

Key Points

COVID-19 has slowed US clean energy growth by curbing tax equity, disrupting supply chains, and delaying projects.

✅ Tax equity dries up as investor profits fall

✅ Supply chain and construction face pandemic delays

✅ Policy aid and credit extensions sought by industry

 

Swinerton Renewable Energy had everything it needed to build a promising new solar farm in Texas. It lined up more than 2,000 acres for the $109 million project estimated to generate 400 jobs while under construction. By its completion date, the solar farm was expected to produce 200 megawatts of energy — enough to power about 25,000 homes — and generate big tax breaks for its investors as part of a government program to incentivize clean energy.

But the coronavirus pandemic put everything on hold. The solar farm’s backers aren’t sure they will make enough money from other investments during the pandemic-fueled downturn for those tax breaks to be worth it. So the project has been delayed at least six months.

“This is not a shortage of materials. It is not a pricing issue,” said George Hershman, president of Swinerton Renewable Energy. “Everything was pointing to successful projects.”

The coronavirus crisis is not only battering the oil and gas industry. It’s drying up capital and disrupting supply chains for businesses trying to move the country toward cleaner sources of energy.

While President Trump has promised lifelines for airlines and oil companies struggling with a drastic decrease in demand as Americans remain under stay-at-home orders, there is little focus in Washington on economic relief for this sector, despite a power coalition's call for action to address the pandemic — unlike during the Great Recession a decade ago, when Congress and the Obama administration earmarked an unprecedented sum for renewable energy and more efficient automobiles in a stimulus bill.

“We don’t want to lose our great oil companies,” Trump said during an April 1 news briefing. He so far has not made a similar promise to help wind and solar firms, and none of the four economic rescue and stimulus packages that Congress has passed to respond to the coronavirus crisis set aside any money for renewable energy specifically.

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The impact of the crisis is already clear: About 106,000 clean-energy workers have already filed for unemployment in March alone, according to an analysis of Bureau of Labor Statistics data by Environmental Entrepreneurs, an advocacy group.

The layoffs are a blow to a sector that has prided itself on official projections that solar installers and wind turbine technicians would be the two fastest growing occupations over the next decade.

The job losses include not just wind and solar construction workers, but also those assembling electric cars and installing energy-efficient appliances, lighting, heating and air conditioning.

“These aren’t left-wing coastal hippies,” said Bob Keefe, executive director of Environmental Entrepreneurs. “These are construction workers who get up every day and lace up their boots and pull on their gloves and go to work putting insulation in our attics.”

Despite the economic turmoil, climate experts say the coronavirus pandemic could be an opportunity to make drastic shifts in the energy landscape, with green investments potentially driving a robust recovery. They say governments around the world should help fund renewable energy and use the turmoil in energy markets to remake the industry and slash carbon dioxide emissions, which will tumble 8 percent this year, according to the International Energy Agency.

The agency said that while global energy demand fell 3.8 percent in the first quarter, renewables were the only source to post an increase in demand, rising 1.5 percent thanks to new renewable power plants, low operating costs and priority on some electricity grids.

But many investors, who rely on a broad mix of investments, are spooked. “Everything is quiet because people want to see where we land with the current crisis, and people are holding on to cash,” said Daniel Klier, the global head of sustainable finance at HSBC bank. “As soon as people have a bit of confidence that the market is recovering, they can get projects going.”

Social distancing and the country’s stay-at-home orders are also having a deep effect on daily operations. The areas hardest hit are installing solar panels on rooftops and adding energy-efficiency measures inside homes — work that often requires face-to-face interactions. Sungevity, once one of the nation’s leading solar-installation companies, laid off 377 workers, most of its workforce, in late March, according to filings with California’s Employment Development Department. The company, which had emerged from a 2017 bankruptcy, cited economic conditions.

The push to promote a more fuel-efficient automobile fleet has also veered off track. The electric car maker Tesla was forced to shut down its factory in Fremont, Calif., just as it was turning up production on its new crossover vehicle, the Model Y.

Lockdown orders across the country led Tesla’s outspoken chief executive, Elon Musk, to launch into an expletive-laden rant during an earnings call last week in which Tesla posted a lukewarm profit of $16 million.

“To say that they cannot leave their house and they will be arrested if they do,” Musk said, “this is fascist.”

Sungevity and Tesla represent only a sliver of the economic pain in this sector across the country. The Solar Energy Industries Association had anticipated a growth in solar jobs, from 250,000 to 300,000, over the course of the year, said the group’s president, Abigail Ross Hopper. Now, she said, half the workforce is at risk.

“Shelter in place puts limitations on how people can work,” she said. “Literally, people don’t want other people inside their houses to fix electrical boxes. And there are no door-to-door sales.”

Bigger projects are also grappling with the pandemic economy, though not as severely. Hopper said the industry was geared up to increase the number of new solar farms, in part to take advantage of federal tax credits. “We were on track to do almost 20 gigawatts, which would have been the highest year yet,” Hopper said. That would have been enough to power about 3.7 million homes. Now she expects new projects will come closer to last year’s 13.27 gigawatts’ worth of new construction, after a report on utility-scale solar delays warned of widespread slowdowns, enough to run approximately 2.5 million homes.

Wind energy companies, too, are bracing for lost progress unless the federal government steps in. The American Wind Energy Association said projects that would add 25 gigawatts of wind power to the U.S. grid are at risk of being scaled back or canceled outright over the next two years because of the pandemic. Altogether, that work represents about 35,000 jobs.

“2019 was a good year for the wind industry,” said Tom Kiernan, the association’s chief executive. “We were expecting 2020 to be an even stronger year.”

One project put on the back burner: an enormous 9 gigawatt offshore wind venture led by the New York State Energy Research and Development Authority set to be completed by 2035.

With New York City besieged by coronavirus cases, the authority said it would comply with an executive order from Gov. Andrew M. Cuomo (D), “pausing” all on-site work on clean-energy projects until at least May 15. Michigan, New Jersey and Pennsylvania also delayed wind turbine projects by deeming construction on them nonessential.

The Danish offshore wind firm Orsted said that plans for offshore U.S. wind installations would move “at a slower pace than originally expected due to a combination of the Bureau of Ocean Energy Management’s prolonged analysis of the cumulative impacts from the build-out of US offshore wind projects, and now also COVID-19 effects.” The company told investors it expects delays on projects off the coasts of New York, New Jersey and Rhode Island totaling almost 3 gigawatts.

The supply chains have also taken a hit during the pandemic: Even if contractors can get the money to erect wind turbines or lay solar arrays, that doesn’t mean they will have the parts. At least two factories that make wind turbine parts — one in North Dakota and another in Iowa — were forced to pause production because of coronavirus outbreaks. Factory shutdowns in China have constrained solar supplies, too.

The key reason for delaying most big solar and wind projects is the use of tax credits known as “tax equity.” These allow investors, such as banks, to use the credits to directly offset their overall tax burdens. But if an investor doesn’t have enough profit to offset the credits, the tax equity could become worthless.

“If your profitability is going down, you don’t have the same appetite,” Hopper said.

Solar and wind industry leaders are pressing Congress and the Trump administration to extend the eligibility period for tax credits that are due to expire, with senators urging support for clean energy in relief packages, and to make the tax credits refundable, meaning the government would issue a check to investors who do not have enough profit to justify their investments.

Currently, big wind turbines get a 1.5 cents per kilowatt hour tax credit if construction begins before the end of this year. Tax credits for residential renewable energy — solar panels and small wind — phase out by the end of 2021, and debate over a potential solar ITC extension continues to shape expectations in the wind market.

The lack of attention to renewables in Congress’s relief efforts so far is in stark contrast to 2009, when the United States spent $112 billion to boost “green” energy, according to the World Resources Institute. The government’s package then provided a mixture of grants and loans for a variety of renewable energy ventures — including a $465 million loan Tesla used to get its Fremont factory off the ground.

This year, a handful of clean-energy firms, including a Connecticut-based manufacturer of fuel cells and an Ohio-based maker of energy-efficient lighting systems, took money from a federal small-business lending program, before funds ran dry in the middle of last month. Broadwind Energy, a maker of steel wind energy towers based outside Chicago, received $9.5 million in small-business loans, one of the biggest totals in the program.

So far, the Trump administration has shown far more eagerness to help American petroleum producers that the president said were “ravaged” by a sharp drop in energy demand. Last month, Trump met with oil executives at the White House, and Energy Secretary Dan Brouillette has floated the idea of bridge loans for struggling oil firms.

During negotiations for the last relief package, congressional Democrats tried to strike a deal to refill the nation’s Strategic Petroleum Reserve in exchange for extending the clean-energy incentives, but Senate Majority Leader Mitch McConnell (R-Ky.) rebuffed those calls.

“Democrats won’t let us fund hospitals or save small businesses unless they get to dust off the Green New Deal,” McConnell said in March.

Already, Democrats are signaling they will make a push again in the next round of stimulus spending.

“Relief and recovery legislation will shape our society for years to come,” said Rep. A. Donald McEachin (D-Va.), vice chair of the House Sustainable Energy and Environment Coalition, a caucus that supports renewable energy resources. “We must use these bills to build in a climate-smart way.”

But it remains unclear how much appetite the GOP will have for a deal. “I just don’t know how to handicap that at this point,” said Grant Carlisle, an analyst at the Natural Resources Defense Council, a major environmental group.

Kiernan, the head of the American Wind Energy Association, said his group has “gotten a very good reception with the administration and with the Hill” when it comes to coronavirus relief, but he declined to go into specifics.

In other parts of the world, governments have been providing support for renewables. The European Union has its own Green New Deal, and China is expected to support wind and solar to get the economy moving more quickly.

Some energy analysts note that big oil companies don’t have to wait for government stimulus. The price of oil is so low that they would be better off investing in wind and solar, they say.

“For all these oil companies, the returns on these renewable projects are better than what they can do in the oil and gas industry,” said Sarah Ladislaw, director of the energy program at the Center for Strategic and International Studies. “Now is a good time to do that and tell their investors.”

This fits in with their broader goals, analysts contend. After all, Royal Dutch Shell recently matched BP’s earlier promise to aim to be net-zero for carbon emissions by 2050.

Shell’s chief executive Ben van Beurden has said the company would try to protect its low-carbon Integrated Gas and New Energies division from the largest spending cuts as it sought to weather the pandemic. “We must maintain focus on the long term,” he said in a video message. “Society expects nothing less.”

 

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Buyer's Remorse: Questions about grid modernization affordability

Grid Modernization drives utilities to integrate DER, AMI, and battery storage while balancing reliability, safety, and affordability; regulators pursue cost-benefit analyses, new rate design, and policy actions to guide investment and protect customer-owned resources.

 

Key Points

Upgrading the grid to manage DER with digital tools, while maintaining reliability, safety, and customer affordability.

✅ Cost-benefit analyses guide prudent grid investments

✅ AMI and storage deployments enable DER visibility and control

✅ Rate design reforms support customer-owned resources

 

Utilities’ pursuit of a modern grid, including the digital grid concept, to maintain the reliability and safety pillars of electricity delivery has raised a lot of questions about the third pillar — affordability.

Utilities are seeing rising penetrations of emerging technologies, highlighted in recent grid edge trends reports, like distributed solar, behind-the-meter battery storage, and electric vehicles. These new distributed energy resources (DER) do not eliminate utilities' need to keep distribution systems safe and reliable.

But the need for modern tools to manage DER imposes costs on utilities, prompting calls to invest in smarter infrastructure even as some regulators, lawmakers and policymakers are concerned those costs could drive up electricity rates.

The result is an increasing number of legislative and regulatory grid modernization actions aimed at identifying what is necessary to serve the coming power sector transformation and address climate change risks across the grid.

 

The rise of grid modernization

Grid modernization, which is supported by both conservatives and distributed energy resources advocates, got a lot of attention last year. According to the 2017 review of grid modernization policy by the North Carolina Clean Energy Technology Center (NCCETC), 288 grid modernization policy actions were proposed, pending or enacted in 39 states.

These numbers from NCCETC's first annual review of policy activity set a benchmark against which future years' activity can be measured.

The most common type of state actions, by far, were those that focused on the deployment of advanced metering infrastructure (AMI) and battery energy storage. Those are two of the 2017 trends identified in NCCETC’s 50 States of Grid Modernization report. But deployment of those technologies, while foundational to an updated grid, only begins to prepare distribution systems for the coming power sector transformation.

Bigger advances, including the newest energy system management tools, are being held back by 2017’s other policy actions requiring more deliberation and fact-finding, even as grid vulnerability report cards underscore the risks that modernization seeks to mitigate.

Utilities’ proposals to more fully prepare their grids to deliver 21st century technologies are being met with questions about completeness and cost.

Utilities are being asked to address these questions in comprehensive, public utility commission-led cost-benefit analyses and studies. This is also one of NCCETC’s top 2017 policy action trends for grid modernization. The outcome to date appears to be an increased, but still incomplete, understanding of what is needed to build a 21st century grid.

Among the top objectives of those driving the policy actions are resolving questions about private sector participation in grid modernizaton buildouts and developing new rate designs to protect and support customer-owned distributed energy resources. Actions on those topics are also on NCCETC’s list of 2017 policy trends.

Altogether, the trend list is dominated by actions that do not lead to completion of grid modernization but to more work on it.

 

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Oil crash only a foretaste of what awaits energy industry

Oil and Gas Profitability Decline reflects shale-driven oversupply, OPEC-Russia dynamics, LNG exports, renewables growth, and weak demand, signaling compressed margins for producers, stressed petrodollar budgets, and shifting energy markets post-Covid.

 

Key Points

A sustained squeeze on hydrocarbon margins from agile shale supply, weaker OPEC leverage, and expanding renewables.

✅ Shale responsiveness caps prices and erodes industry rents

✅ OPEC-Russia cuts face limited impact versus US supply

✅ Renewables and EVs slow long-term oil and gas demand

 

The oil-price crash of March 2020 will probably not last long. As in 2014, when the oil price dropped below $50 from $110 in a few weeks, this one will trigger a temporary collapse of the US shale industry. Unless the coronavirus outbreak causes Armageddon, cheap oil will also support policymakers’ efforts to help the global economy.

But there will be at least one important and lasting difference this time round — and it has major market and geopolitical implications.

The oil price crash is a foretaste of where the whole energy sector was going anyway — and that is down.

It may not look that way at first. Saudi Arabia will soon realise, as it did in 2015, that its lethal decision to pump more oil is not only killing US shale but its public finances as well. Riyadh will soon knock on Moscow’s door again. Once American shale supplies collapse, Russia will resume co-operation with Saudi Arabia.

With the world economy recovering from the Covid-19 crisis by then, and with electricity demand during COVID-19 shifting, moderate supply cuts by both countries will accelerate oil market recovery. In time, US shale producers will return too.

Yet this inevitable bounceback should not distract from two fundamental factors that were already remaking oil and gas markets. First, the shale revolution has fundamentally eroded industry profitability. Second, the renewables’ revolution will continue to depress growth in demand.

The combined result has put the profitability of the entire global hydrocarbon industry under pressure. That means fewer petrodollars to support oil-producing countries’ national budgets, including Canada's oil sector exposures. It also means less profitable oil companies, which traditionally make up a large segment of stock markets, an important component of so many western pension funds.

Start with the first factor to see why this is so. Historically, the geological advantages that made oil from countries such as Saudi Arabia so cheap to produce were unique. Because oil and gas were produced at costs far below the market price, the excess profits, or “rent”, enjoyed by the industry were very large.

Furthermore, collusion among low-cost producers has been a winning strategy. The loss of market share through output cuts was more than compensated by immediately higher prices. It was the raison d’être of Opec.

The US shale revolution changed all this, exposing the limits of U.S. energy dominance narratives. A large oil-producing region emerged with a remarkable ability to respond quickly to price changes and shrink its costs over time. Cutting back cheap Opec oil now only increases US supplies, with little effect on world prices.

That is why Russia refused to cut production this month. Even if its cuts did boost world prices — doubtful given the coronavirus outbreak’s huge shock to demand — that would slow the shrinkage of US shale that Moscow wants.

Shale has affected the natural gas industry even more. Exports of US liquefied natural gas now put an effective ceiling on global prices, and debates over a clean electricity push have intensified when gas prices spike.

On top of all this, there is also the renewables’ revolution, though a green revolution has not been guaranteed in the near term. Around the world, wind and solar have become ever-cheaper options to generate electricity. Storage costs have also dropped and network management improved. Even in the US, renewables are displacing coal and gas. Electrification of vehicle fleets will damp demand further, as U.S. electricity, gas, and EVs face evolving pressures.

Eliminating fossil fuel consumption completely would require sustained and costly government intervention, and reliability challenges such as coal and nuclear disruptions add to the complexity. That is far from certain. Meanwhile, though, market forces are depressing the sector’s usual profitability.

The end of oil and gas is not immediately around the corner. Still, the end of hydrocarbons as a lucrative industry is a distinct possibility. We are seeing that in dramatic form in the current oil price crash. But this collapse is merely a message from the future.

 

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Power customers in British Columbia, Quebec have faced fees for refusing the installation of smart meters

NB Power Smart Meter Opt-Out Fees reflect cost causation principles set before the Energy and Utilities Board, covering meter reading charges, transmitter-disable options, rollout targets, and education plans across New Brunswick's smart metering program.

 

Key Points

Fees NB Power may apply to customers opting out of smart meters, reflecting cost causation and meter-reading costs.

✅ Based on cost causation and meter reading expenses

✅ BC and Quebec charge monthly opt-out surcharges

✅ Policy finalized during rollout after EUB review

 

NB Power customers who do not want a smart meter installed on their home could be facing a stiff fee for that decision, but so far the utility is not saying how much it might be.  

"It will be based on the principles of cost causation, but we have not gotten into the detail of what that fee would be at this point," said NB Power Senior Vice President of Operations Lori Clark at Energy and Utilities Board hearings on Friday.

In other jurisdictions that have already adopted smart meters, customers not wanting to participate have faced hundreds of dollars in extra charges, while Texas utilities' pullback from smart-home networks shows approaches can differ.

In British Columbia, power customers are charged a meter reading fee of $32.40 per month if they refuse a smart meter, or $20 per month if they accept a smart meter but insist its radio transmitter be turned off. That's a cost of between $240 and $388.80 per year for customers to opt out.

In Quebec, smart meters were installed beginning in 2012. Customers who refused the devices were initially charged $98 to opt out plus a meter reading fee of $17 per month. That was eventually cut by Quebec's energy board in 2014 to a $15 refusal fee and a $5 per month meter reading surcharge.

NB Power said it may be a year or more before it settles on its own fee.

"The opt out policy will be developed and implemented as part of the roll out.  It will be one of the last things we do," said Clark.

 

Customers need to be on board

NB Power is in front of the New Brunswick Energy and Utilities Board seeking permission to spend $122.7 million to install 350,000 smart meters province wide, as neighboring markets grapple with major rate increases that heighten affordability concerns.  

The meters are capable of transmitting consumption data of customers back to NB Power in real time, which the utility said will allow for a number of innovations in pricing and service, and help address old meter inaccuracies that affected some households.

The meters require near universal adoption by customers to maximize their financial benefit — like eliminating more than $20 million a year NB Power currently spends to read meters manually. The utility has said the switch will not succeed if too many customers opt out.

"We certainly wouldn't be looking at making an investment of this size without having the customer with us," said Clark.

On Thursday, Kent County resident Daniel LeBlanc, who along with Roger Richard, is opposing the introduction of smart meters for health reasons, predicted a cool reception for the technology in many parts of the province, given concerns that include health effects and billing disputes in Nova Scotia reported elsewhere.

"If one were to ask most of the people in the rural areas, I'm not sure you would get a lot of takers for this infrastructure," said LeBlanc, who is concerned with the long-term effect microwave frequencies used by the meters to transmit data may have on human health.

That issue is before the EUB next week.

 

Haven't tested the waters

NB Power acknowledged it has not measured public opinion on adopting smart meters but is confident it can convince customers it is a good idea for them and the utility, even as seasonal rate proposals in New Brunswick have prompted consumer backlash.

"People don't understand what the smart meter is," said Clark. "We need to educate our customers first to allow them to make an informed decision so that will be part of the roll out plan."

Clark noted that smart meters, helped by stiff opting out penalties, were eventually accepted by 98 per cent of customers in British Columbia and by 97.4 per cent of customers in Quebec.

"We will check and adjust along the way if there are issues with customer uptake," said Clark.

 

"This is very similar to what has been done in other jurisdictions and they haven't had those challenges."

 

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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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Electrifying: New cement makes concrete generate electricity

Cement-Based Conductive Composite transforms concrete into power by energy harvesting via triboelectric nanogenerator action, carbon fibers, and built-in capacitors, enabling net-zero buildings and self-sensing structural health monitoring from footsteps, wind, rain, and waves.

 

Key Points

A carbon fiber cement that harvests and stores energy as electricity, enabling net-zero, self-sensing concrete.

✅ Uses carbon fibers to create a conductive concrete matrix

✅ Acts as a triboelectric nanogenerator and capacitor

✅ Enables net-zero, self-sensing structural health monitoring

 

Engineers from South Korea have invented a cement-based composite that can be used in concrete to make structures that generate and store electricity through exposure to external mechanical energy sources like footsteps, wind, rain and waves, and even self-powering roads concepts.

By turning structures into power sources, the cement will crack the problem of the built environment consuming 40% of the world’s energy, complementing vehicle-to-building energy strategies across the sector, they believe.

Building users need not worry about getting electrocuted. Tests showed that a 1% volume of conductive carbon fibres in a cement mixture was enough to give the cement the desired electrical properties without compromising structural performance, complementing grid-scale vanadium flow batteries in the broader storage landscape, and the current generated was far lower than the maximum allowable level for the human body.

Researchers in mechanical and civil engineering from from Incheon National University, Kyung Hee University and Korea University developed a cement-based conductive composite (CBC) with carbon fibres that can also act as a triboelectric nanogenerator (TENG), a type of mechanical energy harvester.

They designed a lab-scale structure and a CBC-based capacitor using the developed material to test its energy harvesting and storage capabilities, similar in ambition to gravity storage approaches being scaled.

“We wanted to develop a structural energy material that could be used to build net-zero energy structures that use and produce their own electricity,” said Seung-Jung Lee, a professor in Incheon National University’s Department of Civil and Environmental Engineering, noting parallels with low-income housing microgrids in urban settings.

“Since cement is an indispensable construction material, we decided to use it with conductive fillers as the core conductive element for our CBC-TENG system,” he added.

The results of their research were published this month in the journal Nano Energy.

Apart from energy storage and harvesting, the material could also be used to design self-sensing systems that monitor the structural health and predict the remaining service life of concrete structures without any external power, which is valuable in industrial settings where hydrogen-powered port equipment is being deployed.

“Our ultimate goal was to develop materials that made the lives of people better and did not need any extra energy to save the planet. And we expect that the findings from this study can be used to expand the applicability of CBC as an all-in-one energy material for net-zero energy structures,” said Prof. Lee, pointing to emerging circular battery recycling pathways for net-zero supply chains.

Publicising the research, Incheon National University quipped: “Seems like a jolting start to a brighter and greener tomorrow!”

 

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