Solar Thermal Plant in Nevada Hits a Milestone, So Does U.S. Solar Industry

California Rolling Blackouts expose grid reliability risks amid a heatwave, as CAISO curtails power while solar output fades at sunset, wind stalls, and scarce natural gas and nuclear capacity plus PG&E issues strain imports.

Key Points

Grid outages during heatwaves from low reserves, fading solar, weak wind, and limited firm capacity.

✅ Heatwave demand rose as solar output dropped at sunset

✅ Limited imports and gas, nuclear shortfalls cut reserves

✅ Policy, pricing, and maintenance gaps increased outage risk

Millions of Californians were denied electrical power and thus air conditioning during a heatwave, raising the risk of heatstroke and death, particularly among the elderly and sick. 

The blackouts come at a time when people, particularly the elderly, are forced to remain indoors due to Covid-19, and as later heat waves would test the grid again statewide.

At first, the state’s electrical grid operator last night asked customers to voluntarily reduce electricity use. But after lapses in power supply pushed reserves to dangerous levels it declared a “Stage 3 emergency” cutting off power to people across the state at 6:30 pm.

The immediate reason for the black-outs was the failure of a 500-megawatt power plant and an out-of-service 750-megawatt unit not being available. “There is nothing nefarious going on here,” said a spokeswoman for California Independent System Operator (CAISO). “We are just trying to run the grid.”

But the underlying reasons that California is experiencing rolling black-outs for the second time in less than a year stem from the state’s climate policies, which California policymakers have justified as necessary to prevent deaths from heatwaves, and which it is increasingly exporting to Western states as a model.

In October, Pacific Gas and Electric cut off power to homes across California to avoid starting forest fires after reports that its power lines may have started fires in recent seasons. The utility and California’s leaders had over the previous decade diverted billions meant for grid maintenance to renewables. 

And yesterday, California had to impose rolling blackouts because it had failed to maintain sufficient reliable power from natural gas and nuclear plants, or pay in advance for enough guaranteed electricity imports from other states.

It may be that California’s utilities and their regulator, the California Public Utilities Commission, which is also controlled by Gov. Newsom, didn’t want to spend the extra money to guarantee the additional electricity out of fears of raising California’s electricity prices even more than they had already raised them.

California saw its electricity prices rise six times more than the rest of the United States from 2011 to 2019, helping explain why electricity prices are soaring across the state, due to its huge expansion of renewables. Republicans in the U.S. Congress point to that massive increase to challenge justifications by Democrats to spend $2 trillion on renewables in the name of climate change.

Even though the cost of solar panels declined dramatically between 2011 and 2019, their unreliable and weather-dependent nature meant that they imposed large new costs in the form of storage and transmission to keep electricity as reliable. California’s solar panels and farms were all turning off as the blackouts began, with no help available from the states to the East already in nightfall.

Electricity from solar goes away at the very moment when the demand for electricity rises. “The peak demand was steady in late hours,” said the spokesperson for CAISO, which is controlled by Gov. Gavin Newsom, “and we had thousands of megawatts of solar reducing their output as the sunset.”

The two blackouts in less than a year are strong evidence that the tens of billions that Californians have spent on renewables come with high human, economic, and environmental costs.

Last December, a report by done for PG&E concluded that the utility’s customers could see blackouts double over the next 15 years and quadruple over the next 30.

California’s anti-nuclear policies also contributed to the blackouts. In 2013, Gov. Jerry Brown forced a nuclear power plant, San Onofre, in southern California to close.

Had San Onofre still been operating, there almost certainly would not have been blackouts on Friday as the reserve margin would have been significantly larger. The capacity of San Onofre was double that of the lost generation capacity that triggered the blackout.

California's current and former large nuclear plants are located on the coast, which allows for their electricity to travel shorter distances, and through less-constrained transmission lines than the state’s industrial solar farms, to get to the coastal cities where electricity is in highest demand.

There has been very little electricity from wind during the summer heatwave in California and the broader western U.S., further driving up demand. In fact, the same weather pattern, a stable high-pressure bubble, is the cause of heatwaves, since it brought very low wind for days on end along with very high temperatures.

Things won’t be any better, and may be worse, in the winter, with a looming shortage as it produces far less solar electricity than the summer. Solar plus storage, an expensive attempt to fix problems like what led to this blackout, cannot help through long winters of low output.

California’s electricity prices will continue to rise if it continues to add more renewables to its grid, and goes forward with plans to shut down its last nuclear plant, Diablo Canyon, in 2025.

Had California spent an estimated $100 billion on nuclear instead of on wind and solar, it would have had enough energy to replace all fossil fuels in its in-state electricity mix.

To manage the increasingly unreliable grid, California will either need to keep its nuclear plant operating, build more natural gas plants, underscoring its reliance on fossil fuels for reliability, or pay ever more money annually to reserve emergency electricity supplies from its neighbors.

After the blackouts last October, Gov. Newsom attacked PG&E Corp. for “greed and mismanagement” and named a top aide, Ana Matosantos, to be his “energy czar.” 

“This is not the new normal, and this does not take 10 years to solve,” Newsom said. “The entire system needs to be reimagined.”

Related News

• Electricity Forum News

• Energy Policy News

Hospital Electricity Reliability underpins ICU operations, ventilators, medical devices, and diagnostics, reducing power outages risks via grid power and backup generators, while energy poverty and blackouts magnify COVID-19 mortality in vulnerable regions.

Key Points

Hospital electricity reliability is steady power that keeps ICU care, ventilators and medical devices operating.

✅ ICU loads: ventilators, monitors, infusion pumps, diagnostics

✅ Grid power plus backup generators minimize outage risk

✅ Energy poverty increases COVID-19 mortality and infection

Robert Bryce, Contributor

During her three-year career as a registered nurse, my friend, C., has cared for tuberculosis patients as well as ones with severe respiratory problems. She’s now caring for COVID-19 patients at a hospital in Ventura County, California, where debates about keeping the lights on continue amid the state’s energy transition. Is she scared about catching the virus? “No,” she replied during a phone call on Thursday. “I’m pretty unflappable.”

What would scare her? She quickly replied, “a power outage,” a threat that grows during summer blackouts when heat waves drive demand. About a year ago, while working in Oregon, the hospital she was working in lost power for about 45 minutes. “It was terrifying,” she said. 

C., who wasn’t authorized by her hospital to talk to the media, and thus asked me to only use the initial of her first name, said that COVID-19 patients are particularly reliant on electrical devices. She quickly ticked off the machines: “The bed, the IV machine, vital signs monitor, heart monitor, the sequential compression devices...” COVID-19 patients are hooked up to a minimum of five electrical devices, she said, and if the virus-stricken patient needs high-pressure oxygen or a ventilator, the number of electrical devices could be two or three times that number. “You name it, it plugs in,” she said.  

Today In: Energy

The virus has infected some 2.2 million people around the world and killed more than 150,000,including more than 32,000 people here in the U.S. While those numbers are frightening, it is apparent that the toll would be far higher without adequate supplies of reliable electricity. Modern healthcare systems depend on electricity. Hospitals are particularly big consumers. Power demand in hospitals is about 36 watts per square meter, which is about six times higher than the electricity load in a typical American home, and utilities are turning to AI to adapt to electricity demands during surges. 

Beating the coronavirus is all about electricity. Indeed, nearly every aspect of coronavirus detection, testing, and treatment requires juice. Second, it appears that the virus is more deadly in places where electricity is scarce or unreliable. Finally, if there are power outages in virus hotspots or hospitals, a real risk in a grid with more blackouts than other developed countries, the damage will be even more severe. 

As my nurse friend in Ventura County made clear, her ability to provide high-quality care for patients is wholly dependent on reliable electricity. The thermometers used to check for fever are powered by electricity. The monitors she uses to keep track of her patients, as well as her Vocera, the walkie-talkie that she uses to communicate with her colleagues, runs on batteries. Testing for the virus requires electricity. One virus-testing machine, Abbott Labs’ m2000, is a 655-pound appliance that, according to its specification sheet, runs on either 120 or 240 volts of electricity. The operating manual for a ventilator made by Hamilton Medical is chock full of instructions relating to electricity, including how to manage the machine’s batteries and alarms. 

While it may be too soon to make a direct connection between lack of electricity and the lethality of the coronavirus, the early signs from the Navajo reservation indicate that energy poverty amplifies the danger. The sprawling reservation has about 175,000 residents, but it has a higher death toll from the virus than 13 states. About 10 percent of Navajos do not have electricity in their homes and more than 30 percent lack indoor plumbing. 

The death rate from the virus on the reservation now stands at 3.4 percent, which is nearly twice the global average. In the middle of last week, the entire population of Native American tribes in the U.S. accounted for about 1,100 confirmed cases of the virus and about 44 deaths. Navajos accounted for the majority of those, with 830 confirmed cases of coronavirus and 28 deaths. 

On Saturday night, the Navajo Times reported a major increase, with 1,197 positive cases of COVID-19 on the reservation and 44 deaths. Other factors may contribute to the high infection and mortality rates on the reservation, including  high rates of diabetes, obesity, and crowded residential living situations. That said, electricity and water are essential to good hygiene and health authorities say that frequent hand washing helps cut the risk of contracting the virus. 

The devastation happening on Navajoland provides a window into what may happen in crowded, electricity-poor countries like India, Pakistan, and Bangladesh. It also shows what could happen if a tornado or hurricane were to wipe out the electric grid in virus hotspots like New Orleans, as extreme weather increasingly afflicts the grid nationwide. Sure, most American hospitals have backup generators to help assure reliable power. But those generators can fail. Further, they usually burn diesel fuel which needs to be replenished every few days. 

The essential point here is that our hospitals and critical health care machines aren’t running on solar panels and batteries. Instead, they are running on grid power that’s being provided by reliable sources — coal, natural gas, hydro, and nuclear power — which together produce about 89 percent of the electricity consumed in this country, even as Russian hacking of utilities highlights cyber risks. The pandemic — which is inflicting trillions of dollars of damage on our economy and tens of thousands of deaths — underscores the criticality of abundant and reliable electricity to our society and the tremendous damage that would occur if our health care infrastructure were to be hit by extended blackouts during the fight to stop COVID-19.

In a follow-up interview on Saturday with my friend, C., she told me that while caring for patients, she and her colleagues “are entirely dependent on electricity. We take it for granted. It’s a hidden assumption in our work,” a reminder echoed by a grid report card that warns of dangerous vulnerabilities. She quickly added she and her fellow nurses “aren’t trained or equipped to deal with circumstances that would come with shoddy power. If we lost power completely, people will die.”

Related News

• Electricity Forum News

• Grid Technologies News

ESCC COVID-19 Resource Guide outlines control center continuity, sequestration, social distancing, remote operations, testing priorities, mutual assistance, supply chain risk, and PPE protocols to sustain grid reliability and plant operations during the COVID-19 pandemic.

Key Points

An industry guide to COVID-19 mitigation for the power sector covering control centers, testing, PPE, and mutual aid.

✅ Control center continuity: segregation, remote ops, reserve shifts

✅ Sequestration triggers, testing priorities, and PPE protocols

✅ Mutual assistance, supply chain risk, and workforce planning

The latest version of the Electricity Subsector Coordinating Council’s (ESCC’s) resource guide to assess and mitigate COVID-19 suggests the U.S. power sector continues to grapple with key concerns involving control center continuity, power plant continuity, access to restricted and quarantined areas, mutual assistance, and supply chain challenges, alongside urban demand shifts seen in Ottawa’s electricity demand during closures.

In its fifth and sixth versions of the “ESCC Resource Guide—Assessing and Mitigating the Novel Coronavirus (COVID-19),” released on April 16 and April 20, respectively, the ESCC expanded its guidance as it relates to social distancing and sequestration within tight power sector environments like control centers, crucial mitigation strategies that are designed to avoid attrition of essential workers.

The CEO-led power sector group that serves as a liaison with the federal government during emergencies introduced the guide on March 23, and it provides periodic updates  sourced from “tiger teams,” which are made up of representatives from investor-owned electric companies, public power utilities, electric cooperatives, independent power producers (IPPs), and other stakeholders. Collating regulatory updates and emerging resources, it serves as a general shareable blueprint for generators,  transmission and distribution (T&D) facilities, reliability coordinators, and balancing authorities across the nation on issues the sector is facing as the COVID-19 pandemic endures.

Controlling Spread at Control Centers
While control centers are typically well-isolated, physically secure, and may be conducive to on-site sequestration, the guide is emphatic that staff at these facilities are typically limited and they need long lead times to be trained to properly use the information technology (IT) and operational technology (OT) tools to keep control centers functioning and maintain grid visibility. Control room operators generally include: reliability engineers, dispatchers, area controllers, and their shift supervisors. Staff that directly support these function, also considered critical, consist of employees who maintain and secure the functionality of the IT and OT tools used by the control room operators.

In its latest update, the ESCC notes that many entities took “proactive steps to isolate their control center facilities from external visitors and non-essential employees early in the pandemic, leveraging the presence of back-up control centers, self-quarantining of employees, and multiple shifts to maximize social distancing.” To ensure all levels of logistical and operational challenges posed by the pandemic are addressed, it envisions several scenarios ranging from mild contagion—where a single operator is affected at one of two control center sites to the compromise of both sites.

Previous versions of the guide have set out universal mitigation strategies—such as clear symptom reporting, cleaning, and travel guidance. To ensure continuity even in the most dire of circumstances, for example, it recommends segregating shifts, and even sequestering a “complete healthy shift” as a “reserve” for times when minimum staffing levels cannot be met. It also encourages companies to develop a backup staff of retirees, supervisors, managers, and engineers that could backfill staffing needs.

Meanwhile, though social distancing has always been a universal mitigation strategy, the ESCC last week detailed what social distancing at a control room could look like. It says, for example, that entities should consider if personnel can do their jobs in spaces adjacent to the existing control room; moving workstations to allow at least six feet of space between employees; or designating workstations for individual operators. The guide also suggests remote operations outside of a single control room as an option, and some markets are exploring virtual power plant models in the UK to support flexibility, though it underscores that not all control center operations can be performed remotely, and remote operations increase the potential for security vulnerabilities. “The NERC [North American Electric Reliability Corp.] Reliability Standards address requirements for BES [bulk electric system] control centers and security controls for remote access of systems, applications, or data,” the resource guide notes.

Sequestration—Highly Effective but Difficult
Significantly, the new update also clarifies circumstances that could “trigger” sequestration—or keeping mission-essential workers at facilities. Sequestration, it notes, “is likely to be the most effective means of reducing risk to critical control center employees during a pandemic, but it is also the most resource- and cost-intensive option to implement.”

It is unclear exactly how many power sector workers are currently being sequestered at facilities. According to the  American Public Power Association (APPA), as of last week, the New York Power Authority was sequestering 82 power plant control room and transmission control operator, amid New York City’s shifting electric rhythms during COVID-19; the Sacramento Municipal Utility District (SMUD) in California had begun sequestering critical employees; and the Electric & Gas Utility at the City of Tallahassee had 44 workers being rotated in and out of sequestration. Another 37 workers from the New York ISO were already being sequestered or housed onsite as of April 9. PJM began sequestering a team of operators on April 11, and National Grid was sequestering 200 employees as of April 12. 

Decisions to trigger sequestration at T&D and other grid monitoring facilities are typically driven by entities’ risk assessment, ESCC noted. Considerations may involve: 

The number of people showing symptoms or testing positive as a percentage of the population in a county or municipality where the control center is sited. One organization, for example, is considering a lower threshold of 10% community infection as a trigger of “officer-level decision” to determine whether to sequester. A higher threshold of 20% “mandates a move to sequestration,” ESCC said.
The number of essential workers showing symptoms or having tested positive. “Acceptable risk should be based on the minimum staffing requirements of the control center and should include the availability of a reserve shift for critical position backfills. For example, shift supervisors are commonly certified in all positions in the control center, and the unavailability of more than one-third of a single organization’s shift supervisors could compromise operations,” it said.
The rate of infection spread across a geographic region. In the April 20 version, the guide removes specific mention that cases are doubling “every 3–5 days or more frequently in some areas.” It now says:  “Considering the rapid spread of COVID-19, special care should be taken to identify the point at which control center personnel are more likely than not to come into contact with an infected individual during their off-shift hours.”
Generator Sequestration Measures Vary
Generators, meanwhile, have taken different approaches to sequester generation operators. Some have reacted to statewide outbreaks, others to low reserves, and others still, as with one IPP, to control exposure to smaller staffs, which cannot afford attrition. The IPP, for example, decided sequestration was necessary because it “did not want to wait for confirmed cases in the workforce.” That company sequestered all its control room operators, outside operators, and instrumentation and control technicians.

The ESCC resource guide says workers are being sequestered in several ways. On-site, these could range from housing workers in two separate areas, for example, or in trailers brought in. Off-site, workers may be housed in hotel rooms, which the guide notes, “are plentiful.”

Location makes a difference, it said: “Onsite requires more logistical co-ordination for accommodations, food, room sanitization, linens, and entertainment.”  To accommodate sequestered workers, generators have to consider off-site food and laundry services (left at gates for pick-up)—and even extending Wi-Fi for personal use. Generators are learning from each other about all aspects of sequestration—including how to pay sequestered workers. It suggests sequestered workers should receive pay for all hours inside the plant, including straight time for regularly scheduled hours and time-and-a-half for all other hours. To maintain non-sequestered employees, who are following stay-at-home protocols, pay should remain regularly scheduled, it says.

Testing Remains a Formidable Hurdle
Though decisions to sequester differ among different power entities, they appear commonly complicated by one prominent issue: a dearth of testing.

At the center of a scuffle between the federal and state governments of late, the number of tests has not kept pace with the severity of the pandemic, and while President Trump has for some weeks claimed that “Testing is a local thing,” state officials, business leaders—including from the power sector—and public health experts say that it is far short of the several hundred thousands or perhaps even millions of daily tests it might take to safely restart the economy, even as calls to keep electricity options open grow among policymakers, a three-phase approach for which the Trump administration rolled out this week. While the White House said the approach is “based on the advice of public health experts, the suggestions do not indicate a specific timeframe. Some hard-hit states have committed to keeping current restrictions in place. New York on April 16 said it would maintain a shutdown order through May 15, while California published its own guidelines and states in the Northeast, Midwest, and West Coast entered regional pacts that may involve interstate coordination on COVID-19–related policy going forward.

On Sunday, responding to a call by governors across the political spectrum that insisted the federal government should step up efforts to help states obtain vital supplies for tests, Trump said the federal government will be “using” and “preparing to use” the Defense Production Act to increase swab production.

For the power entities that are part of the ESCC, widespread testing underlies many mitigation strategies. The group’s generation owners and operating companies, which include members from the full power spectrum, have said testing is central to “successful mitigation of risk to control center continuity.”

In the updated guide, the entities recommend requesting that governmental authorities—it is unclear whether the focus should be on the federal or state governments—“direct medical facilities to prioritize testing for asymptomatic generation control room operators, operator technicians, instrument and control technicians, and the operations supervisor (treat comparable to first responders) in advance of sequestered, extended-duration shifts; and obtain state regulatory approval for corporate health services organizations to administer testing for coronavirus to essential employees, if applicable.”

The second priority, as crucial, involves asking the government to direct medical facilities to prioritize testing for control room operators before they are sequestered or go into extended-duration shifts.

Generators also want local, regional, state, and federal governments to ensure operators of generating facilities are allowed to move freely if “populace-wide quarantine/curfew or other travel restrictions” are enacted. Meanwhile,  they have also asked federal agencies and state permitting agencies to allow for non-compliance operations of generating facilities in case enough workers are not available.

Lower on its list, but still “medium priority,” is that the government should obtain authority for priority supply of sanitizing supplies and personal protective equipment (PPE) for generating facilities. They are also asking states to allow power plant employees (as opposed to crucially redirected medical personnel) to administer health questionnaires and temperature checks without Americans with Disabilities Act or other legal constraints. Newly highlighted in the update, meanwhile, is an emphasis on enough fire retardant (FR) vests and hoods and PPE, including masks and face coverings, so technicians don’t have to share them.

The worst-case scenario envisioned for generators involves a 40% workforce attrition, a nine-month pandemic, and no mutual assistance. As the update suggests, along with universal mitigation strategies, some power companies are eliminating non-essential work that would require close contact, altering assignments so work tasks are done by paired teams that do not rotate, and ensuring workers wear masks. The resource guide includes case studies and lessons learned so far, and all suggest pandemic planning was crucial to response. 

Gearing Up for Mutual Assistance—Even for Generation—During COVID-19
Meanwhile, though the guide recognizes that protecting employees is a key priority for many entities, it also lauds the crucial role mutual assistance plays in the sector’s collective response to the pandemic, even as coal and nuclear plant closures test just transition planning across regions. Mutual assistance is a long-standing power sector practice in the U.S. Last week, for example, as severe weather impacted the southern and eastern portions of the U.S., causing power outages for 1.3 million customers at the peak, the sector demonstrated the “versatility of mutual assistance processes,” bringing in additional workers and equipment from nearby utilities and contractors to assist with assessment and repair. “Crews utilized PPE and social distancing per the CDC [Centers for Disease Control and Prevention] and OSHA [Occupational Safety and Health Administration] guidelines to perform their restoration duties,” the Energy Department told POWER.

But as the ESCC’s guide points out, mutual assistance has traditionally been deployed to help restore electric service to customers, typically focused on T&D infrastructure. The COVID-19 pandemic, uniquely, “has motivated generation entities to consider the use of mutual assistance for generation plant operation” it notes. As with the model it proposes to ensure continuity of control centers, mutual aid poses key challenges, such as for task variance, knowledge of operational practice, system customization, and legal indemnification.

Among guidelines ESCC proposes for generators are to use existing employee work stoppage plans as a resource in planning for the use of personnel not currently assigned to plant operation. It urges, for example, that generators keep a list of workers with skills who can be called from corporate/tech support (such as former operators or plant engineers/managers), or retirees and other individuals who could be called upon to help operate the control room first. ESCC also recommends considering the use of third-party contractor operations to supplement plant operations.

Key to these efforts is to “Create a thorough list of experience and qualifications needed to operate a particular unit. Important details include fuel type, OEM [original equipment manufacturer] technology, DCS [distributed control system] type, environmental controls, certifications, etc,” it says. “Consider proactively sharing this information internally within your company first and then with neighboring companies”—and that includes sufficient detail from manufacturers (such as Emerson Ovation, GE Mark VI, ABB, Honeywell)—“without exposing proprietary information.” One way to control this information is to develop a mutual assistance agreement with “strategic” companies within the region or system, it says.

Of specific interest is that the ESCC also recommends that generators consider “leaving units in extended or planned maintenance outage in that state as long as possible.” That’s because, “Operators at these offline sites could be considered available for a site responding to pandemic challenges,” it says.

However, these guidelines differ by resource. Nuclear generators, for example, already have robust emergency plans that include minimum staffing requirements, and owing to regulations, mutual aid is managed by each license holder, it says. However, to provide possible relief for attrition at operating nuclear plants, the Nuclear Regulatory Commission (NRC) on March 28 outlined a streamlined process that could allow nuclear operators to obtain exemptions from work hour rules, while organizations also point to IAEA low-carbon electricity lessons for future planning.

Uncertainty of Supply Chain Endurance
As the guide stresses, operational continuity during the pandemic will require that all power entities maintain supply of inputs and physical equipment. To help entities plan ahead—by determining volumes needed and geographic location of suppliers—it lists the most important materials needed for power delivery and bulk chemicals. “Clearly, the extent and duration of this emergency will influence the importance of one supply chain component compared to another,” it says.

As Massachusetts Institute of Technology supply chain expert David Simchi-Levi noted on April 13, global supply chains have been heavily taxed by the pandemic, and manufacturing activities in the European Union and North America are still going offline. China is showing signs of slow recovery. Even in the best-case scenario, however—even if North America and Europe manage to control and reduce the pandemic—the supply chain will likely experience significant logistical capacity shortages, from transportation to warehousing. Owing to variability in timing, he suggested that companies plan to reconfigure supply chains and reposition inventory in case suppliers go out of business or face quarantine, while some industry groups urge investing in hydropower as part of resilient recovery strategies.

Also in short supply, according to ESCC, is industry-critical PPE. “While our sector recognizes that the priority is to ensure that PPE is available for workers in the healthcare sector and first responders, a reliable energy supply is required for healthcare and other sectors to deliver their critical services,” its resource guide notes. “The sector is not looking for PPE for the entire workforce. Rather, we are working to prioritize supplies for mission-essential workers – a subset of highly skilled energy workers who are unable to work remotely and who are mission-essential during this extraordinary time.”

Among critical industry PPE needs are nitrile gloves, shoe covers, Tyvek suits, goggles/glasses, hand sanitizer, dust masks, N95 respirators, antibacterial soap, and trashbags. While it provides a list of non-governmental PPE vendors and suppliers, the guide also provides several “creative” solutions. These include, for example, formulations for effective hand sanitizer; 3D printer face shield files; methods for decontaminating face piece respirators and other PPE; and instructions for homemade masks with pockets for high-efficiency particulate air (HEPA) filter inserts.

Related News

• Electricity Forum News

• Power Generation News

ABL has secured a contract for the UK Subsea Power Link, highlighting ABL Group’s marine warranty role in Eastern Green Link 2, a 2 GW offshore electricity superhighway connecting Scotland and England to enhance grid reliability and renewable energy transmission.

Key Points: ABL Group’s contract for the UK Subsea Power Link

ABL Group has been appointed to provide marine warranty survey services for the 2 GW Eastern Green Link 2 subsea interconnector between Scotland and England.

✅ Manages vessel suitability checks, installation oversight, and DP assurance

✅ Strengthens UK grid reliability and advances the clean energy transition

✅ Sizeable contract valued between USD 1 million and 3 million

Energy and marine consultancy ABL, a subsidiary of ABL Group, has been awarded a contract by Eastern Green Link 2 (EGL2) to provide marine warranty survey (MWS) services for the installation of a new 2 GW subsea power connection between Scotland and England.

EGL2 is one of the United Kingdom’s most significant energy-infrastructure projects, involving the creation of a 505-kilometre “electricity superhighway” that will enable simultaneous power transfer between Peterhead in Aberdeenshire and Drax in North Yorkshire, mirroring a renewable power link announced for the same corridor recently. The project is designed to strengthen grid resilience, integrate renewable energy from Scotland’s offshore resources, and advance the UK’s broader energy transition goals.

Under the terms of the contract, ABL will be responsible for the technical review and approval of the project and procedural documentation, as well as conducting suitability surveys of the proposed fleet for marine transportation and installation operations. The company will also provide dynamic positioning (DP) assurance where required and will review and approve all warranted operations through on-site attendances, reflecting practices used on projects like the Great Northern Transmission Line in North America.

Cable-laying operations for the link are scheduled to take place between January and September 2028, amid wider efforts to fast-track grid connections across the UK. According to ABL, the engagement represents a “sizeable” contract, valued between USD 1 million and 3 million.

“This appointment reflects ABL's reputation as a trusted MWS partner for major power transmission infrastructure development and reinforces our position at the forefront of supporting the UK's energy transition,” said Hege Norheim, CEO of ABL Group. “We look forward to contributing to this strategic initiative.”

The subsea interconnector, known as Eastern Green Link 2, will transmit up to 2 gigawatts of electricity—enough to power approximately 2 million homes. It forms part of the Great Grid Upgrade, National Grid’s nationwide program to modernize and expand the transmission network in preparation for a low-carbon future, alongside a recent 2 GW substation milestone.

By linking renewable-rich northern Scotland with high-demand regions in England, EGL2 is expected to reduce congestion on the existing grid by leveraging HVDC technology to improve transfer efficiency, enhance security of supply, and facilitate the more efficient flow of surplus renewable energy south. The connection will also support the UK government’s target of decarbonizing the electricity system by 2035.

ABL’s appointment follows a period of intensive marine and geotechnical surveys along the proposed cable route to assess seabed conditions and environmental sensitivities. The company’s marine warranty oversight will ensure that transportation and installation operations meet strict safety, technical, and environmental standards demanded by insurers and project partners, as seen in a recent cross-border transmission approval in North America.

For ABL Group, which provides engineering and risk services to the offshore energy and marine industries worldwide, the contract marks another milestone in its expanding portfolio of subsea power and transmission projects across Europe. With operations set to begin in 2028, the Eastern Green Link 2 initiative represents both a major engineering challenge and a key enabler of the UK’s offshore energy ambitions, echoing a recent offshore wind power milestone in the U.S.

Related Articles

• World Electricity News

U.S. Climate Change Donation Survey reveals Americans' willingness to fund sustainability via government incentives, electrification, and renewable energy. Public opinion favors wind, solar, and decarbonization, highlighting policy support post-pandemic amid economic recovery efforts.

Key Points

A 2020 U.S. poll on climate attitudes: donation willingness, renewable support, and views on government incentives.

✅ 70% would donate income; 31% would donate nothing.

✅ 59% prefer government incentives; 47% support taxes, conservation.

✅ 85% land wind, 83% offshore wind, 90% solar support.

A new study of American consumers' attitudes toward climate change finds that more than two-thirds of respondents (70%) indicate their willingness to give or donate a percentage of their personal income to support the fight against climate change and the path to net-zero electricity emissions by mid-century. 

Twenty-eight percent indicated they were willing to provide less than 1% of their income; 33% said they would be willing to contribute 1-5% of their income; 6% said they would give between 6-10% of their income; and 3% indicated they would contribute more than 10% of their income. Just under one-third (31%) of those surveyed indicated they were unwilling to give or donate any percentage of their income to support the fight against climate change.

The U.S. findings are part of a series of surveys commissioned by Nexans in the U.S., UK and France, in order to determine public opinion on climate change and related issues in the wake of the COVID-19 pandemic. The U.S. study was conducted online by Researchscape from August 20 – 24, 2020. It had 1,013 respondents, ages 18 or older, with the results weighted to be representative of the overall population (variables available upon request).

Nexans, is headquartered in Paris with a major offshore wind cable manufacturing facility in Charleston, S.C. and an industrial cable manufacturing facility in El Dorado, Ark. The company is fully committed to fighting climate change and is helping to make sustainable electrification possible. The survey was developed as part of its celebration of the first Climate Day in Paris which included a roundtable event with world-renowned experts, the release of an unprecedented global study by Roland Berger on the challenges raised by the electrification of the world, the question of whether the global energy transition is on track, and Nexans' own commitment to be carbon neutral by 2030.

Paying the Tab to Address Climate Change

Participants were given the opportunity to choose from seven multiple responses to the question "How should the fight against climate change be paid for?" The majority (59%) replied it should be paid for by "government incentives for both businesses and consumers." It was followed by "federal, state and/or local taxes" and "conservation programs" (tied at 47%); "business investments" (42%), such as carbon-free electricity initiatives, and "consumer-driven purchases" (33%). Just 9% selected none of the above and 2% selected other.

"Through the organization of this Climate Day, Nexans is asserting itself not only as an actor but also a thought leader of the energy transition for a sustainable electrification of the world. This electrification raises a number of challenges and paradoxes that must be overcome. And it will only happen with the direct involvement of the populations concerned. These surveys provide a better understanding of the level of information and disinformation, including climate change denial, in public opinion as well as their level of acceptability of these lifestyle changes," said Christopher Guérin, CEO, Nexans.

Among other findings, 44% are dissatisfied with the job that federal and state governments are doing to address climate change, while utilities like Duke Energy face investor pressure to release climate reports, 35% are somewhat satisfied and 21% are either very satisfied or completed satisfied with government's role.

Americans expressed overwhelmingly favorable views of wind and solar renewable energy proposals, as carbon emissions fall when electricity producers move away from coal. Specifically, 85% stated being in favor of wind turbines on land (15% against), 83% in favor of wind turbines off the coast (17% against) and 90% in support of solar panel farms (10% opposed).

Those surveyed were asked about their current and changing priorities towards climate change as influenced by the coronavirus pandemic and impacts like extreme heat on electricity bills. Thirty-nine percent indicated that climate change was no more and no less a priority due to the current health emergency; just under a third (31%) indicated that climate change is more of a priority while 30% said it was less of a priority.

In similar research conducted by Nexans in the United Kingdom, nearly two thirds (65.8%) of UK respondents said they would be willing to donate part of their salary to fight climate change. Furthermore, nearly a third (29%) of the UK's consumers believe that combating climate change has become more of a priority in light of the coronavirus pandemic. The UK research was conducted online by Savanta from August 21 – 24, 2020. A total of 2210 respondents, aged 16 and above, representative of the UK population took part.

Related News

• Electricity Forum News

• Climate Change News

Boeing 787 More-Electric Architecture replaces pneumatics with bleedless pressurization, VFSG starter-generators, electric brakes, and heated wing anti-ice, leveraging APU, RAT, batteries, and airport ground power for efficient, redundant electrical power distribution.

Key Points

An integrated, bleedless electrical system powering start, pressurization, brakes, and anti-ice via VFSGs, APU and RAT.

✅ VFSGs start engines, then generate 235Vac variable-frequency power

✅ Bleedless pressurization, electric anti-ice improve fuel efficiency

✅ Electric brakes cut hydraulic weight and simplify maintenance

The 787 Dreamliner is different to most commercial aircraft flying the skies today. On the surface it may seem pretty similar to the likes of the 777 and A350, but get under the skin and it’s a whole different aircraft.

When Boeing designed the 787, in order to make it as fuel efficient as possible, it had to completely shake up the way some of the normal aircraft systems operated. Traditionally, systems such as the pressurization, engine start and wing anti-ice were powered by pneumatics. The wheel brakes were powered by the hydraulics. These essential systems required a lot of physical architecture and with that comes weight and maintenance. This got engineers thinking.

What if the brakes didn’t need the hydraulics? What if the engines could be started without the pneumatic system? What if the pressurisation system didn’t need bleed air from the engines? Imagine if all these systems could be powered electrically… so that’s what they did.

Power sources

The 787 uses a lot of electricity. Therefore, to keep up with the demand, it has a number of sources of power, much as grid operators track supply on the GB energy dashboard to balance loads. Depending on whether the aircraft is on the ground with its engines off or in the air with both engines running, different combinations of the power sources are used.

Engine starter/generators

The main source of power comes from four 235Vac variable frequency engine starter/generators (VFSGs). There are two of these in each engine. These function as electrically powered starter motors for the engine start, and once the engine is running, then act as engine driven generators.

The generators in the left engine are designated as L1 and L2, the two in the right engine are R1 and R2. They are connected to their respective engine gearbox to generate electrical power directly proportional to the engine speed. With the engines running, the generators provide electrical power to all the aircraft systems.

APU starter/generators

In the tail of most commercial aircraft sits a small engine, the Auxiliary Power Unit (APU). While this does not provide any power for aircraft propulsion, it does provide electrics for when the engines are not running.

The APU of the 787 has the same generators as each of the engines — two 235Vac VFSGs, designated L and R. They act as starter motors to get the APU going and once running, then act as generators. The power generated is once again directly proportional to the APU speed.

The APU not only provides power to the aircraft on the ground when the engines are switched off, but it can also provide power in flight should there be a problem with one of the engine generators.

Battery power

The aircraft has one main battery and one APU battery. The latter is quite basic, providing power to start the APU and for some of the external aircraft lighting.

The main battery is there to power the aircraft up when everything has been switched off and also in cases of extreme electrical failure in flight, and in the grid context, alternatives such as gravity power storage are being explored for long-duration resilience. It provides power to start the APU, acts as a back-up for the brakes and also feeds the captain’s flight instruments until the Ram Air Turbine deploys.

Ram air turbine (RAT) generator

When you need this, you’re really not having a great day. The RAT is a small propeller which automatically drops out of the underside of the aircraft in the event of a double engine failure (or when all three hydraulics system pressures are low). It can also be deployed manually by pressing a switch in the flight deck.

Once deployed into the airflow, the RAT spins up and turns the RAT generator. This provides enough electrical power to operate the captain’s flight instruments and other essentials items for communication, navigation and flight controls.

External power

Using the APU on the ground for electrics is fine, but they do tend to be quite noisy. Not great for airports wishing to keep their noise footprint down. To enable aircraft to be powered without the APU, most big airports will have a ground power system drawing from national grids, including output from facilities such as Barakah Unit 1 as part of the mix. Large cables from the airport power supply connect 115Vac to the aircraft and allow pilots to shut down the APU. This not only keeps the noise down but also saves on the fuel which the APU would use.

The 787 has three external power inputs — two at the front and one at the rear. The forward system is used to power systems required for ground operations such as lighting, cargo door operation and some cabin systems. If only one forward power source is connected, only very limited functions will be available.

The aft external power is only used when the ground power is required for engine start.

Circuit breakers

Most flight decks you visit will have the back wall covered in circuit breakers — CBs. If there is a problem with a system, the circuit breaker may “pop” to preserve the aircraft electrical system. If a particular system is not working, part of the engineers procedure may require them to pull and “collar” a CB — placing a small ring around the CB to stop it from being pushed back in. However, on the 787 there are no physical circuit breakers. You’ve guessed it, they’re electric.

Within the Multi Function Display screen is the Circuit Breaker Indication and Control (CBIC). From here, engineers and pilots are able to access all the “CBs” which would normally be on the back wall of the flight deck. If an operational procedure requires it, engineers are able to electrically pull and collar a CB giving the same result as a conventional CB.

Not only does this mean that the there are no physical CBs which may need replacing, it also creates space behind the flight deck which can be utilised for the galley area and cabin.

A normal flight

While it’s useful to have all these systems, they are never all used at the same time, and, as the power sector’s COVID-19 mitigation strategies showed, resilience planning matters across operations. Depending on the stage of the flight, different power sources will be used, sometimes in conjunction with others, to supply the required power.

On the ground

When we arrive at the aircraft, more often than not the aircraft is plugged into the external power with the APU off. Electricity is the blood of the 787 and it doesn’t like to be without a good supply constantly pumping through its system, and, as seen in NYC electric rhythms during COVID-19, demand patterns can shift quickly. Ground staff will connect two forward external power sources, as this enables us to operate the maximum number of systems as we prepare the aircraft for departure.

Whilst connected to the external source, there is not enough power to run the air conditioning system. As a result, whilst the APU is off, air conditioning is provided by Preconditioned Air (PCA) units on the ground. These connect to the aircraft by a pipe and pump cool air into the cabin to keep the temperature at a comfortable level.

APU start

As we near departure time, we need to start making some changes to the configuration of the electrical system. Before we can push back , the external power needs to be disconnected — the airports don’t take too kindly to us taking their cables with us — and since that supply ultimately comes from the grid, projects like the Bruce Power upgrade increase available capacity during peaks, but we need to generate our own power before we start the engines so to do this, we use the APU.

The APU, like any engine, takes a little time to start up, around 90 seconds or so. If you remember from before, the external power only supplies 115Vac whereas the two VFSGs in the APU each provide 235Vac. As a result, as soon as the APU is running, it automatically takes over the running of the electrical systems. The ground staff are then clear to disconnect the ground power.

If you read my article on how the 787 is pressurised, you’ll know that it’s powered by the electrical system. As soon as the APU is supplying the electricity, there is enough power to run the aircraft air conditioning. The PCA can then be removed.

Engine start

Once all doors and hatches are closed, external cables and pipes have been removed and the APU is running, we’re ready to push back from the gate and start our engines. Both engines are normally started at the same time, unless the outside air temperature is  below 5°C.

On other aircraft types, the engines require high pressure air from the APU to turn the starter in the engine. This requires a lot of power from the APU and is also quite noisy. On the 787, the engine start is entirely electrical.

Power is drawn from the APU and feeds the VFSGs in the engines. If you remember from earlier, these fist act as starter motors. The starter motor starts the turn the turbines in the middle of the engine. These in turn start to turn the forward stages of the engine. Once there is enough airflow through the engine, and the fuel is igniting, there is enough energy to continue running itself.

After start

Once the engine is running, the VFSGs stop acting as starter motors and revert to acting as generators. As these generators are the preferred power source, they automatically take over the running of the electrical systems from the APU, which can then be switched off. The aircraft is now in the desired configuration for flight, with the 4 VFSGs in both engines providing all the power the aircraft needs.

As the aircraft moves away towards the runway, another electrically powered system is used — the brakes. On other aircraft types, the brakes are powered by the hydraulics system. This requires extra pipe work and the associated weight that goes with that. Hydraulically powered brake units can also be time consuming to replace.

By having electric brakes, the 787 is able to reduce the weight of the hydraulics system and it also makes it easier to change brake units. “Plug in and play” brakes are far quicker to change, keeping maintenance costs down and reducing flight delays.

In-flight

Another system which is powered electrically on the 787 is the anti-ice system. As aircraft fly though clouds in cold temperatures, ice can build up along the leading edge of the wing. As this reduces the efficiency of the the wing, we need to get rid of this.

Other aircraft types use hot air from the engines to melt it. On the 787, we have electrically powered pads along the leading edge which heat up to melt the ice.

Not only does this keep more power in the engines, but it also reduces the drag created as the hot air leaves the structure of the wing. A double win for fuel savings.

Once on the ground at the destination, it’s time to start thinking about the electrical configuration again. As we make our way to the gate, we start the APU in preparation for the engine shut down. However, because the engine generators have a high priority than the APU generators, the APU does not automatically take over. Instead, an indication on the EICAS shows APU RUNNING, to inform us that the APU is ready to take the electrical load.

Shutdown

With the park brake set, it’s time to shut the engines down. A final check that the APU is indeed running is made before moving the engine control switches to shut off. Plunging the cabin into darkness isn’t a smooth move. As the engines are shut down, the APU automatically takes over the power supply for the aircraft. Once the ground staff have connected the external power, we then have the option to also shut down the APU.

However, before doing this, we consider the cabin environment. If there is no PCA available and it’s hot outside, without the APU the cabin temperature will rise pretty quickly. In situations like this we’ll wait until all the passengers are off the aircraft until we shut down the APU.

Once on external power, the full flight cycle is complete. The aircraft can now be cleaned and catered, ready for the next crew to take over.

Bottom line

Electricity is a fundamental part of operating the 787. Even when there are no passengers on board, some power is required to keep the systems running, ready for the arrival of the next crew. As we prepare the aircraft for departure and start the engines, various methods of powering the aircraft are used.

The aircraft has six electrical generators, of which only four are used in normal flights. Should one fail, there are back-ups available. Should these back-ups fail, there are back-ups for the back-ups in the form of the battery. Should this back-up fail, there is yet another layer of contingency in the form of the RAT. A highly unlikely event.

The 787 was built around improving efficiency and lowering carbon emissions whilst ensuring unrivalled levels safety, and, in the wider energy landscape, perspectives like nuclear beyond electricity highlight complementary paths to decarbonization — a mission it’s able to achieve on hundreds of flights every single day.

Related News

• Electricity Forum News

• Power Generation News