November 1, 2024

PJM Stakeholders Discuss Monitor Contract Review

VALLEY FORGE, Pa. —
PJM stakeholders provided feedback to the Board of Managers on a potential review of the Independent Market Monitor contract during the Markets and Reliability Committee meeting Wednesday.

Manager David Mills said the current deliberations are focused on the structure of the contract, not the performance of the current contract holder, Monitoring Analytics, nor whether the company will continue to hold the contract.

“It’s been quite some time since these documents were reviewed, and in that time, PJM has had a significant amount of turnover on the board,” Mills said. “This is not a performance review or referendum on Monitoring Analytics.”

Paul Sotkiewicz, president of E-Cubed Policy Associates, pushed for the board to consider issuing a request for proposals.

“If it turns out Monitoring Analytics is the best outfit to do this, that’s great … but I do think this should be open to a competitive process,” he said.

Vitol’s Jason Barker said the contract states that the PJM board has the responsibility to evaluate the Monitor’s performance, but it doesn’t provide any measure to benchmark against. He advocated for a third party to be retained to look at topics such as whether Monitor comments are pertinent and influence the outcome of FERC orders, and the impact of Monitor participation in the stakeholder process.

“We encourage the board not only to retain this provision … but also to use it,” he said.

Susan Bruce, of the PJM Industrial Customer Coalition (ICC), said the cost of market manipulation in PJM’s market is high and customers are willing to pay for a monitor who can push for stronger competition. While she said discussion of the Monitor’s role is appreciated, she cautioned against holding an RFP, saying that continuity is critical to the IMM’s work.

“There’s a place here for history and understanding how the markets work,” she said.

The topic of reviewing the contract was first raised in the board’s Competitive Market Committee. Mills, the committee’s chair, reiterated the board’s commitment to a monitor empowered to curtail market manipulation.

“None of this is intended to tear apart or destroy the foundation of a strong market monitor,” he said.

The board had previously solicited stakeholder input through the Liaison Committee and last month at the Organization of PJM States Inc.’s meeting, where Mills said comments addressed data access, intellectual property rights for proprietary software and calculations used by the Monitor, and how the contract handles succession.

Mills said the board plans to provide a public written summary of the comments it has received this month.

SPP’s REAL Team Swings Into Action

KANSAS CITY — SPP’s Board of Directors last week approved the scope of a team formed to address resource adequacy challenges and endorsed the group’s plans for dealing with resource accreditation.

SPP’s board and its state regulators created the Resource and Energy Adequacy Leadership (REAL) Team earlier this year. It was clear then to stakeholders that the group had a monumental task in front of it.

The team is charged with providing guidance, prioritization and policy recommendations to increase the assurance that energy can be continuously and cost-effectively provided within SPP’s balancing authority footprint. The team is also expected to address applicable recommendations from the RTO’s grid-of-the-future work and resource-adequacy issues identified by other initiatives.

When REAL Team chair and Texas Public Utility Commissioner Will McAdams found himself staring at a slide during an April 24 presentation to the Regional State Committee, he paused momentarily.

“And this is our implementation calendar,” McAdams said. He paused again. “This is an aggressive calendar, and we’re going to do our best.”

Kansas commissioner and RSC chair Andrew French said the team’s task is even larger than he first imagined in preparing the initial draft scope.

“I knew it would be a heavy lift, but as I’ve listened in on a couple of the first meetings and realized how important these issues are to everyone and how many extra issues there are, we’re realizing it’s going to be a heavy lift,” he said. “I’m more convinced than ever that it’s a worthwhile lift, that strategically, it’s absolutely essential to set the foundation for us moving forward.”

The REAL Team plans to deliver adjustments to SPP’s resource accreditation policy in October. FERC in March rejected SPP’s capacity accreditation methodology for wind and solar resources on procedural grounds and granted clean energy interests’ rehearing request of its prior acceptance. (See FERC Grants Rehearing of SPP Capacity Accreditation Proposal.)

Next year, REAL plans to produce a resource adequacy methodology and related policies, a seasonal resource adequacy construct, value-of-lost-load and expected-unserved-energy metrics, and future capacity accreditation and planning reserve margins.

No wonder McAdams drew chuckles when sharing the team’s deliverables timeline.

Bruce Rew 2023-04-24 (RTO Insider LLC) FI.jpgSPP’s Bruce Rew | © RTO Insider LLC

“All of this we hope to tackle in year one,” he said.

McAdams said the 14-person team, comprised of SPP board members, stakeholders and state regulators and staff, will be “looking at challenges resulting from resource mix changes, high intermittent energy penetration into the system, and how our [load-responsible entities] can cope with that to ensure a reliable reliability standard is ultimately met.”

“This needs to occur during events of extreme weather, increased demand and evolving customer behavior,” he said. “REAL Team over the next year and possibly onward, will provide guidance, prioritization and policy recommendations to increase assurance that there will be sufficient energy to cost-effectively meet load requirements.”

The RSC last week unanimously approved the REAL Team’s scope. It also endorsed its proposal to respond to the FERC ruling — having the Supply Adequacy Working Group (SAWG) break effective load-carrying capacity (ELCC) and performance-based accreditation into two separate revision requests. REAL said the ELCC change should reflect FERC’s guidance to add a definition of seasonal net peak load and address the accreditation of renewable and thermal resources in a similar manner.

The proposal further directs SAWG to harmonize the two RRs and explain how the treatment of resources is equitable and appropriate, filing both changes with the board and RSC before the October governance meetings.

The Board of Directors approved the motion April 25 as part of its consent agenda.

“This shows us that we need to better describe our methodology with repackaging and re-presenting this policy to the FERC,” McAdams said. “Ultimately, we need to make an attempt to compare them on an apples-to-apples basis, even though the resources are different.

“My hope as chair … is that we start thinking about what FERC can approve in a timely way. These are important policy building blocks that we need to have in place in order to move off first base toward a reliability framework that we can actually defend and build upon and that we can hold the system accountable to,” he added. “We do not want to offer them proposals that they can just reject out of hand, which costs us time that we do not have. We need to be crafting proposals that have a degree of certainty that [they] will be passed.”

Member Value Up to $3.787B

SPP staff updated its member value statement during the quarterly stakeholder briefing that followed the RSC meeting, saying its analysis found the RTO provided $3.79 billion in net savings to members in 2022, a 41% increase from the year before and a 22-to-1 return on investment.

According to the report, the biggest savings came from the Integrated Marketplace’s day-ahead, real-time and transmission markets ($2.3 billion) and reduced costs and required reserves within the RTO’s footprint ($1.03 billion).

“That’s driven mostly by significant increases in the cost of gas and wholesale energy … [When prices rise] the benefit of participating in SPP’s [markets] obviously goes up,” said Mike Ross, SPP’s senior vice president for external affairs and stakeholder relations.

Ross said the market benefits are estimated by comparing what the cost of energy would be in the legacy balancing area versus SPP’s Integrated Marketplace.

“We’ve already seen much lower energy prices to start 2023,” he said.

The annual statement, based on a methodology developed by staff and stakeholders, quantifies the value SPP provides member organizations through reliability coordination, regional transmission planning, market administration and other services.

“This remarkable benefit-cost ratio demonstrates we are driving value beyond reliability,” CEO Barbara Sugg said.

In other quarterly reports:

  • SPP said it established new marks for wind energy and renewable energy on March 16 when it hit 23.8 GW and 24.89 GW, respectively, breaking records set in February. The grid operator has more than 32 GW of available wind resources.
  • Xcel Energy (NASDAQ:XEL) subsidiary Public Service Co. of Colorado’s April entry into the Western Energy Imbalance Service (WEIS) market has tripled its size to more than 13 GW. The utility’s load topped 6 GW in April, while WEIS’ weekly average this year has regularly been above 3.5 GW. A recent report revealed the WEIS market provided $31.7 million in net benefits to its 12 participating utilities in 2022 at a benefit-cost ratio of 7-to-1.
  • SPP’s Integrated Marketplace now has 195 financial-only and 119 asset-owning market participants, for a total of 314.

WECC Summer Outlook Weighs Hydropower, Wildfires

The West’s heavy snowpack from this winter will be partly soaked up by soils parched during years of drought, limiting hydropower production throughout the summer in the Desert Southwest and Pacific Northwest, speakers said during WECC’s annual summer outlook webinar on Wednesday and Thursday.

The two-day event offered a preview of summer conditions and operations in the Western Interconnection, with subjects that also included wildfires and extended weather forecasts.

“While we may have an increased amount of runoff initially, it doesn’t mean that that runoff is just going to stay there unimpacted by the dried soils of the last couple of years,” Sunny Wescott, lead meteorologist at the federal Cybersecurity and Infrastructure Security Agency, said in Wednesday’s session. “Watching that snowpack melt, come down the mountains and get absorbed rapidly is going to be a condition that everyone needs to be aware of.”

Clayton Palmer, an environmental specialist with the Western Area Power Administration, said the Southwest’s decades-long “mega drought” has meant that since 1988, less water has reached hydroelectric reservoirs in a region where “water equals power.”

“There’s much less runoff for every millimeter of water that has fallen as precipitation during the winter period” from October through April, Palmer said.

Lake Mead and Lake Powell on the Colorado River have risen this winter as snow blanketed the Rocky Mountains, but the hydroelectric reservoirs remain significantly below their historical averages, he said. The Bureau of Reclamation is examining options for maintaining hydroelectric production at Hoover Dam, which has a 2,074-MW generating capacity, and Glen Canyon Dam, with a 1,320-MW capacity, in what is expected to be a drier future for the Colorado River Basin, he said.

“We shouldn’t be using the word ‘drought’ since the word drought implies that something is temporary, that we have less water for a temporary period of time,” Palmer said. “What we have is a ‘drought,’ to use that word in quotes, caused by an increase in temperature.

“The Colorado River Basin has increased in average temperature by 2 degrees Fahrenheit, and higher temperatures cause snowmelt to be absorbed in drier soils,” he said. “The higher temperatures increase the dryness of the soils and increase evapotranspiration of the water that falls as snow … and decreases what we call the runoff efficiency. The runoff efficiency is how much of the water that falls as snow in the Colorado River Basin gets into the river.”

Forecasted annual generation in the Colorado River Storage Project, which consists of Glen Canyon and other dams in the upper Colorado basin, for 2023 through 2027 will hover around 4 million MWh, compared with an average of about 6.5 million MWh from 1971 through 2000, Palmer said.

In the Pacific Northwest, precipitation was 20% below normal this winter, but temperatures were lower, meaning “our snowpack generally throughout the Columbia River Basin is above normal,” said Geoffrey Walters, senior hydrologist with the Northwest River Forecast Center.

“On the other hand, another primary component to water supply volume forecasts is the soil conditions, and the soil conditions have been dry, and they’ve been dry throughout the winter,” Walters said. “And because of those dry soil conditions, water supply volume forecasts are lower than maybe what you would perceive just looking at the current snowpack. That’s because when soil moisture is drier than normal, it [takes] more of that melting snowpack before it allows the runoff to enter the rivers.

“Vegetation is also going to take more of the snowpack from the available downstream supply for power production or other uses,” he said.

The center is predicting water supply that is 83% of the normal April-to-September volume at Grand Coulee Dam, which has a generating capacity of 6,809 MW. At the Dalles Dam, which has a 1,780-MW capacity and is a key measuring point for Columbia River water flow, supply will be 85% of normal this summer, Walters said.

Wildfire Outlook

On Thursday, WECC took up the topic of wildfires.

While wildfires are not exclusive to the West, they are “a particularly Western concern,” Vic Howell, WECC director of reliability risk management, said Thursday in opening a panel on summer wildfire preparations.

Howell asked panelists about the biggest concerns their utilities have related to fires.

Chris Potter, control center real-time manager with AltaLink, said it’s all about “location, location, location” for the Alberta, Canada-based transmission provider, indicating that risks vary by geography.

Potter described the region’s “Chinooks,” a weather phenomenon occurring in the southern part of the province in which warm and dry westerly winds blow off the Rocky Mountains onto the prairie, rapidly elevating temperatures by as much as 50 F. Wind speeds during those events can reach 60 mph, he said.

“The biggest risk for us is that wind, because if we were to have a line that goes down, which is obviously more probable, in the high wind conditions … [if it starts a fire], it’s going to spread very, very quickly and cover a lot of ground,” Potter said.

Alberta also faces a risk of utility pole fires, he said, particularly along highway corridors lined with wood poles supporting wooden cross-arms. These fires are usually the result of automobiles kicking up dust containing road salt, which causes deterioration on the transmission line insulators, increasing the risk of line arcing under damp conditions, which can set fires to the poles.

“Wind-driven events” present the biggest risk in Southern California Edison’s 50,000-square-mile territory, nearly 30% of which is considered at high risk of wildfire, according to Raymond Fugere, the utility’s director of wildfire safety. Fugere pointed to two “big drivers” of wind-driven fires for SCE: when airborne “foreign objects” come into contact with power lines, causing them to fall; and “line slap,” which can eject molten particles onto the ground and ignite fires.

Christopher Sanford, senior system operator with the Bonneville Power Administration, vouched for the foreign object risk.

“When I was a system operator, getting a call that a trampoline is hanging in a line 40 feet above the ground, it’s kind of bizarre, but those things do happen,” Sanford said, adding that BPA is seeing high winds more frequently now than even 10 years ago.

“We can see a microburst with 100-mph winds and dry lightning, and that’s a great combination for starting fires,” he said.

As a federal power agency that operates about 15,000 miles of transmission but no distribution lines, BPA is also concerned about having clear communication and coordination with other entities in the region during high fire-threat events.

“BPA’s actions are influenced by what other utilities do, whether it’s an adjacent [transmission operator], or it’s one of our distribution customers. … Our impact when we take out a line under a public safety power shutoff [PSPS] can be far greater than a local area impact. [If] we take out significant transmission for wildfire prevention, that could impact down into California and up into Canada,” Sanford said.

System Hardening

Turning to the subject of potentially new challenges Western utilities will face during the upcoming wildfire season, Fugere pointed to the fact that while 95% of California was in drought conditions a year ago, that figure has dropped to zero after a winter of heavy rain and snow.

“So that is going to present some very unique challenges,” Fugere said, including an increase in “grass crop growth,” which elevates the risk of roadside fires ignited by cars. This will require the utility to adjust its schedule for “structural brushing,” the process of clearing grass and brush around the base of utility poles to prevent sparks from setting fires. The increase in soil moisture this year means the grass will grow back after an initial clearing.

Sanford said that while Northwest winter precipitation levels were not as extreme as in California, the season was wet enough to pose particular concerns for the grasslands of central Oregon and Washington.

“We do take on similar actions with system hardening with clearing around wood poles, [and] clearing and using other techniques to preserve wooden poles to reduce the impact of an outage,” Sanford said. “We’ve also done a lot of hardening around our substations,” including clearing brush to a perimeter of 50 feet where permitted. He said such actions have in the past created “well defended” areas that can function as a fire command post.

Fugere and his colleague Cameron McPherson extolled the success of SCE’s wildfire prevention efforts. Fugere said the utility has seen a 98% reduction in the number of structures burned within its territory since initiating fire-hardening measures in 2017, even while facing more extreme drought conditions.

“Our insurance company has told us that we reduced our risk for catastrophic wildfires probably by about 80% — of have a fire that will hit a billion dollars [in costs]. So that’s the mark we’re really driving towards also. We want to continue to drive that down as far as we can,” Fugere said.

McPherson, SCE’s principal manager for PSPS operations, said the utility’s efforts have significantly reduced the need for shutoffs, relegating their use to the most extreme weather events.

“Although used sparingly, due to the impact it has on our customers, there’s no doubt it’s extremely effective once we de-energize the lights,” he said. “The question then becomes, was there a potential fault condition on the line, had it been energized, that could have led to a catastrophic wildfire?”

McPherson said the findings from post-PSPS patrols indicate that SCE’s hardening efforts are paying off. He thinks the utility may even have the opportunity to raise the wind-speed thresholds for invoking PSPS in order to reduce their “scope, frequency and duration.”

Wash. Sabotage Suspect Pleads Guilty

One of the two men charged with attacking electric substations in Washington state over the Christmas holiday has pleaded guilty to conspiracy to damage energy facilities, federal prosecutors said on Friday.

Matthew Greenwood of Puyallup, Wash., filed his guilty plea Friday with the U.S. District Court
for Western Washington, according to a statement. In the plea, Greenwood admitted to vandalizing four substations owned by Puget Sound Energy and Tacoma Power on Dec. 25. In addition, the plea said Greenwood and his co-defendant Jeremy Crahan, also of Puyallup, planned to cut down trees “to take out power lines,” although this plan was not acted on before the two were arrested.

Greenwood said he and Crahan sought to disrupt power in order to break into ATMs and local businesses to steal money, the same motive he mentioned to the officers who arrested him on Dec. 31. (See Feds Charge Two in Wash. Substation Sabotage.)

He also faced a charge of possessing unregistered firearms; a spokesperson for the Department of Justice confirmed that Friday’s guilty plea was only for the charges related to the substation damage. The plea agreement included a pledge from the U.S. Attorney’s Office for the Western District of Washington “not to prosecute [Greenwood] for any additional offenses known to it as of the time of this plea agreement” based on “the promises made by” Greenwood.

Crahan was also charged with conspiracy to destroy an energy facility. According to court records, he has not entered a plea. The conspiracy charges carry a maximum sentence of 20 years for both men, along with a fine of up to $250,000 and three years of supervised release, although the Justice Department said prosecutors will “recommend the low end of the [sentencing] guidelines range when Greenwood is sentenced.”

Greenwood was released on bail at the end of January to attend drug treatment.

Pair Damaged Multiple Facilities

According to the plea agreement, Crahan drove Greenwood to the substations and Greenwood performed the actual attacks. Their first target was the Hemlock substation in South Hill, where Greenwood cut through the perimeter fence around 2:30 a.m., manipulated a bank high side switch, and damaged additional equipment, causing an outage for about 8,000 customers.

Suspect-surveillance-photos-(Tacoma-Power)-FI.jpgSurveillance photos from Tacoma Power showing Greenwood at the Elk Plain substation. | Tacoma Power

The pair then drove to the Elk Plain substation about nine miles away in Spanaway, arriving around 5 a.m. Greenwood cut the padlocks on the exterior gate, manipulated the high side breakers, and damaged additional equipment. They arrived at the Graham substation about 30 minutes later, where Greenwood again manipulated a bank high side switch and damaged equipment. Together, the damage to the Elk Plain and Graham facilities caused at least 7,500 customers to lose power.

Finally, Crahan drove Greenwood to the Kapowsin Substation, also in Graham. Greenwood tampered with the facility’s bank high side switch and tried to pry open the linkage, causing sparks and flames. No outages were attributed to this attack in the plea agreement.

This was not the end of the men’s plans; they intended to continue causing outages by cutting down trees that would then fall on power lines. Although the men spent some time with a chainsaw looking for trees to cut over the next several days, the FBI tracked them down using cell phone records and surveillance photos before they could do so.

Greenwood’s arrest statement said that he and Crahan burglarized a local business and stole from its cash register during the outage, but this incident was not mentioned in the plea agreement.

The Washington sabotage was one of several physical security incidents late last year, most prominently the Dec. 3 gunfire attack on two Duke Energy (NYSE:DUK) substations in North Carolina, which left 45,000 customers without power for as long as four days. (See Duke Completes Power Restoration After NC Substation Attack.)

In response to the North Carolina attacks, FERC ordered NERC to review the effectiveness of its physical security reliability standards and determine whether improvements are needed. NERC released its report last month, identifying several possible areas of improvement and proposing a new standards development project to address the issues. (See NERC Says Changes Coming to Physical Security Standards.)

Vermont Governor to Veto Building Decarbonization Measure

Vermont Gov. Phil Scott (R) plans to veto clean heat legislation for the second year in a row.

Scott said Friday that he agrees with the need to reduce greenhouse gas emissions, including in the heating sector, but the complex clean heat credit system approved by the state legislature is the wrong way to go about it.

The Affordable Heat Act (S.5), sponsored by Sen. Christopher Bray (D), would harm those who cannot afford to switch to cleaner forms of energy, Scott said, adding that Vermont should instead help its residents make the expensive transition, rather than financially punish them.

“Unfortunately, the Super Majority in the Legislature decided to take a completely different approach by giving an unelected commission, the Public Utility Commission, the power to design and adopt a system without guaranteeing the details and costs will be debated transparently through the normal legislative process, in full view of their constituents,” he said in a statement.

The General Assembly approved the measure last week with votes of 20-10 in the Senate and 98-46 in the House, both chambers falling short of unanimous support from their Democratic supermajorities.

A similar clean heat measure advanced through the legislature last year. Scott said then he would support that bill if its language explicitly required the policy details and projected costs of a credit system to come before the legislature and him for final approval.

Scott did not approve of that legislation (H.715), which he vetoed. The subsequent 99-51 House vote fell just short of the two-thirds majority needed to override. (See Vt. House Sustains Veto of Clean Heat Standard Bill.)

Scott in his news release urged Vermonters to ask their representatives to sustain this veto as well.

The measure is presented as a means for Vermont to meet its greenhouse gas emission reduction goals by equitably reducing use of fossil fuels to heat buildings, which generates a third of the state’s emissions.

It orders the PUC to design a credit marketplace for the state’s regulated gas utility and heating fuel dealers that will help their customers pay to switch to emissions-free heating.

Environmental organizations in Vermont have lined up in support of the measure and a number of business groups in opposition.

Scott has also expressed reservations about the cost of building electrification and the difficulty of doing it quickly. But his stated opposition to the plan is centered on its wording, which he and others read as contradictory and potentially enabling the PUC to design and enact what is essentially a carbon tax without legislative approval.

Scott criticized the legislators’ attempt add a “check back” provision to the bill that directs the PUC to report back to the legislature on its efforts to establish the Clean Heat Standard, with estimates of the impacts of the framework it draws up and any recommendations for legislative action.

“When I resisted the Legislature’s original approach to the bill, they inserted a ‘check back’ provision, saying it satisfied my concerns,” Scott said in a news release Friday. “It does not. Some claimed the bill is essentially a study. It is not. As recently as Thursday’s debate on the Senate floor, Senators from both parties have called the check back in the bill contradictory and confusing.”

DOE: US Needs 200 GW of New Nuclear Power by 2050

Nuclear power in the U.S. is locked in a stalemate, according to a new report from the Department of Energy.

No matter how much renewable energy is deployed to decarbonize the grid, DOE is estimating that 500 to 750 GW of clean, firm power — including 200 GW of new nuclear — will be needed to reach net-zero emissions economy-wide by 2050.

“We’re going to need multiple reactor technologies to be successfully deployed at scale, from Generation 3 light water reactors to Generation 4 advanced reactors,” Kathryn Huff, who leads DOE’s Office of Nuclear Energy, told an online audience at Friday’s webinar on the recent Pathways to Commercial Liftoff: Advanced Nuclear report. Reactors of different sizes will also be needed, “from 1 MW, all the way up to gigawatt-plus reactors,” Huff said.

The report differentiates between Gen 3 and Gen 4 reactors based on the fuels they use and how they are cooled. Traditional, water-cooled Gen 3 reactors use low-enriched uranium, while Gen 4 reactors use high-assay, low-enriched uranium (HALEU) and alternative coolants such as molten salt.

“Each of these technologies has a different role to play in meeting our decarbonization goals,” Huff said. The first step to putting those 200 GW online will be “getting a committed order book of signed contracts for new reactors,” with five to 10 orders for each technology, ideally by 2025.

DOE is providing about $3.2 billion to help fund the construction of two new advanced, small modular reactors (SMRs), but the massive cost overruns and delays that have confounded Southern Co.’s Vogtle 3 and 4 reactors in Georgia have cast a long shadow over the industry, said Julie Kozeracki, a senior adviser at DOE’s Loan Program Office (LPO). (See Making the Case for Nuclear at NARUC.)

With Unit 3 just starting to produce power ― six years behind schedule and at more than twice its original $14 billion price tag ― “nuclear has a huge credibility problem to solve,” said Kozeracki, who helped author the report. “Everyone is staring at each other ― customers, suppliers, reactor designers. … Right now, every utility recognizes that they need new nuclear; they need clean, firm power. But they want to wait for someone else to go first, second, third, and order reactor No. 4 or reactor No. 5.

DOE Nuke Liftoff panel (DOE) Content.jpgLaunching DOE’s new report on building a strong domestic market for advanced nuclear were (clockwise from upper left) Jigar Shah, LPO; Kathryn Huff, Office of Nuclear Energy; Julie Kozeracki, LPO; David Crane, Office of Clean Energy Demonstrations, and Vanessa Chan, Office of Technology Transitions. | DOE

“But that’s not good enough,” she said. “Because if they all wait for the demo projects to be done, it’s going to be too late, and we’re going to miss the boat. … We need signed contracts, not press releases, not [memoranda of understanding] and not letters of intent, because you can’t finance a supply chain with MOUs.”

The report makes the case for nuclear as a carbon-free technology that checks a lot of boxes for grid reliability, energy security, economic development and equity, points underlined by speakers at Friday’s webinar.

“Between 2023 and 2050, about 200 electric GW of unabated coal assets are expected to retire,” Huff said. “Nuclear energy is uniquely positioned to replace those retiring assets with a similar electricity generation profile.”

“Deploying clean, firm power sources like nuclear will enable the increased deployment of renewable power,” LPO Director Jigar Shah said. “In addition to providing clean power, nuclear also uses land efficiently [and] has lower transmission requirements; so, they can site themselves on existing coal plant sites … and can leverage existing transmission infrastructure as fossil assets are retired.”

A 2022 DOE study identified close to 400 existing or retired coal plants that could be suitable for advanced nuclear development.

Huff also stressed the economic benefits of coal-to-nuclear transitions for communities affected by the closure of coal or other fossil fuel plants. “Nuclear is one of the few generation sources that can preserve the volume of high-paying jobs from those retiring coal plants,” she said. “A lot of the same people who maintain turbines and steam boilers and electricity around the plant can be rehired, and some of them don’t even need to be retrained to be leveraged into a nuclear power plant.”

The report notes that nuclear plants create about three times the number of jobs per gigawatt compared to wind projects and pay 50% more than wind or solar. Benefits for disadvantaged communities in general are also part of the picture.

“Access to reliable and resilient clean energy resources is not equitably distributed across the U.S.,” the report says. “Increasing grid reliability and resilience for underserved, overburdened communities can support improved health outcomes, public safety, economic security and overall quality of life.”

‘Megaproject Issues’

But how does nuclear compare with the low levelized cost of wind and solar, or even natural gas? It’s a question often asked by nuclear skeptics.

Kozeracki says it doesn’t matter “because of the value it’s providing for a resilient, decarbonized grid. As a clean, firm resource, nuclear doesn’t need to compete with solar by itself or with natural gas by itself. It needs to compete with solar; with really long-duration energy storage, or natural gas with carbon capture,” technologies that have yet to be proven at scale, she said.

The bigger challenge ahead is getting the orders and then completing projects “reasonably” on time and on budget, a measure the report defines as plus or minus 20%.

The report tackles the cost and time overruns at Vogtle, which Kozeracki said “were not nuclear-specific boondoggles. … They are general megaproject issues that you see with any megaproject, from building bridges to Olympic stadiums.

“The design just wasn’t complete enough before construction began, which created a cycle of rework,” she said. “There wasn’t a detailed-enough integrated project schedule or fast-enough turnaround on” quality assurance.

Land Use Efficiency of Energy (DOE) Content.jpgNuclear is by far the most land-efficient form of power generation. | DOE

Vogtle’s workforce of 9,000 at peak also created “diseconomies of scale,” the result of trying to manage “a city’s worth of people,” Kozeracki said.

One solution for bringing down costs is a “consortium approach,” said David Crane, director of the Office of Clean Energy Demonstrations, which is overseeing the advanced nuclear demo projects. As described in the report, the strategy would allow a group of companies, such as utilities, to “enter a cost-sharing agreement for the construction of multiple reactors, likely of the same design. This pooled demand would allow for sharing risk across multiple owners and could smooth the cost curve from the first reactor to the last.”

This approach also relies on a pipeline of five to 10 projects for different types of reactors, Crane said, so that “first of a kind” does not become “one of a kind.”

“If we could get an order book going for a new wave of nuclear reactors by 2025, then I think we’ll be on our way,” Crane said. “If we don’t start until [2035] … it’s virtually impossible. Given the lead time that’s associated with nuclear, we need to be moving now.”

Crane also said “Gen 3-plus” reactors ― light-water SMRs ― could be an important first step for the industry because of the “synergies” that SMRs have with advanced reactors. Kozeracki agreed, saying that light-water SMRs are a proven technology; the Navy has been using them to power nuclear submarines since the 1950s.

“SMRs may be a bit of a ‘gateway drug’ to get us back into the habit of building new nuclear in the U.S. at scale again,” she said.

Kozeracki pointed to the example of South Korea, which has built out a successful nuclear industry by “picking one design and sticking to it and building it over and over again,” she said. The country recently set a new goal for nuclear to generate more than a third of its power by 2036, up for about 27% today, and to sell 10 reactors on the international market by 2030, according to World Nuclear News.

Supply Chains

By comparison, the U.S. has 92 reactors with a capacity of about 95 GW, a fleet that generates 20% of the nation’s power and 50% of its carbon-free power. If new reactors start coming online by 2030, with a solid supply chain, the report says, the industry could reach a steady state of growth, about 13 GW per year through 2050.

But, as Crane said, even a five-year delay on deployments to 2035 could have serious impacts, requiring an annual growth rate of 20 GW per year, which could result in an overbuilt supply chain.

The challenge here is that the U.S. nuclear supply chain is adequate for keeping the existing fleet fueled but not primed for expansion or advanced technologies. For example, the U.S. has the capacity to mine and mill ― the first steps in processing nuclear fuel ― about 2,000 metric tons of uranium per year. Getting to 200 GW will require hitting 50,000 MT per year.

Other steps in the process are equally lagging, and the country has no commercial capacity at all to produce the HALEU needed for advanced reactors. Previously, the industry depended on a single processing facility in Russia for HALEU, but because of the country’s invasion of Ukraine, companies have had to quickly look for other sources.

The difference between the low-enriched uranium used in existing reactors and HALEU is each fuel’s level of the U-235 isotope needed to sustain a nuclear chain reaction. For low-enriched uranium it is around 5%, but for HALEU, it can be up to 20%.

TerraPower, the Bill Gates-funded company that is developing one of the DOE-funded advanced reactors, announced in December a two-year delay on project completion, from 2028 to 2030, because it has not been able to procure the HALEU it needed. The company’s Natrium project is to be located in Kemmerer, Wyo., near a coal-fired plant scheduled to close in 2025.

Patrick White, project manager for the nonprofit Nuclear Innovation Alliance, said the fuel supply chain for existing reactors is “robust,” but the industry would need clear demand signals before it will be ready to invest in expansion for new light-water SMRs.

“It’s a little bit of a chicken-and-egg problem,” White said in an interview with NetZero Insider. “Uranium enrichment companies and some of the other players in the supply chain [need] a clear line of sight on what their future commercial demand is going to be [so] they know that these major capital investments are worthwhile.”

He estimated that bringing new production online would take three to five years, a time frame that could support Crane and Kozeracki’s vision for an initial buildout of Gen 3+ SMRs.

For HALEU, the challenge is less the enrichment process itself, which is similar to low-enriched fuel, but making sure “your facility is designed and licensed to produce the higher enrichment,” along with some assurance of future demand, White said.

One possibility would be for the government — in this case, DOE — to be an initial off-taker of HALEU in order to guarantee production and sales to help bring companies into the market, he said.

Other recommendations in the “Liftoff” report include low-cost federal loans to suppliers to help them build capacity for future projects, as well as public-private collaboration to create a “HALEU bank,” a stockpile to meet the needs of the demonstration projects.

DOE is actively exploring other options as well. One example is the $200 million that the department provided to X-energy to build a HALEU facility to produce fuel for its XE-100 reactor, the second project in its advanced reactor program. The XE-100 uses a specialized kind of HALEU, which X-energy will produce at a facility in Tennessee. The scheduled online date is 2025.

The department also announced in November a $150 million cost-shared award to American Centrifuge Operating to install the necessary equipment at one of its plants in Ohio to produce HALEU.

Will Utilities Take the Plunge?

Storage of spent nuclear fuel is another major obstacle. According to the report, most reactors in operation are storing their spent fuel on site while the federal government tries to find interim and permanent storage locations. Previous efforts to build a spent fuel storage facility at Yucca Mountain in Nevada were abandoned after strong opposition from the state, as well as environmental and tribal groups.

According to the report, “New legislation would be required to build a federal consolidated interim storage facility or allow development of geologic repositories for permanent disposal at sites other than Yucca Mountain.” DOE is advocating for a new “consent-based siting process” to get local buy-in before attempting to build either interim or permanent storage.

DOE defines consent-based siting as “an approach to siting facilities that focuses on the needs and concerns of people and communities. Communities participate in the siting process by working carefully through a series of phases and steps with the department (as the implementing organization). Each step and phase helps a community determine whether and how hosting a facility to manage spent nuclear fuel is aligned to the community’s goals.”

White says the industry “has a clear understanding of how to keep [spent fuel] in a safe and stable state” for on-site storage at reactors currently in operation. After spent fuel has been cooled for a year or more in cooling pools, it is stored in “dry casks,” metal or concrete-encased containers.

Similar best practices should be used for newer SMRs and advanced reactors, White said.

But both interim and long-term waste storage remain open questions. “I don’t think this is something that’s technically impossible,” White said. “But I think a lot of it is making sure that we’re incorporating both the geology, the nuclear science and the social science, and [making] sure we come up with politically feasible ideas that aren’t necessarily overburdening or unfairly putting the responsibility for managing the waste on any single community.”

Like Huff and Crane, however, White stressed the importance of building a strong order book of five to 10 projects. “The challenge is we get stuck in this process of doing one-off reactors, and we don’t necessarily get the signal that we need to build out an effective supply chain,” he said.

Some utilities are planning for those first, second and third projects. In Washington state, PacifiCorp has partnered with TerraPower on the Natrium demonstration project and recently released an integrated resource plan that included two additional Natrium reactors.

The Tennessee Valley Authority is also moving forward with plans for a GE-Hitachi SMR at its Clinch River site near Oakridge. Speaking at the National Association of Regulatory Utility Commissioners’ Winter Policy Summit in February, CEO Jeff Lyash predicted TVA could build up to 20 nuclear plants by 2050.

“I have no interest in building one reactor,” Lyash said. “In order for us to be successful, TVA needs something on the order of 20 reactors over that period of time. So, if you can’t see your way to reaching nth-of-a-kind costs, supply chain, workforce, project execution for a portfolio of reactors, I don’t see the point in building one.”

WEC Energy Group’s Earnings Droop on Mild Winter

WEC Energy Group’s (NYSE: WEC) first-quarter earnings dipped year-over-year after one of the mildest winters in its service territory in more than a century.

The utility reported net income of $507.5 million ($1.61/share) for the first quarter of 2023, a drop from the $565.9 million ($1.79/share) it brought in during last year’s first quarter.

WEC Executive Chair Gale Klappa said the weather was a “major factor” in the earnings results.

“We saw one of the mildest winters in the history of the Upper Midwest,” Klappa said during a conference call with financial analysts Monday. “For example, it was the second-warmest first quarter in Milwaukee since 1891. However, we’re confident in our plan for the remainder of the year.”

WEC serves nearly 4.7 million customers in Wisconsin, Illinois, Michigan and Minnesota.

Assuming normal weather for the rest of 2023, WEC will be able to achieve its annual earnings guidance of $4.58 to $4.62/share, Klappa said.

“We continue to focus on the fundamentals of our business: financial discipline, operating efficiency and customer satisfaction,” he said in a statement. “And we’re confident that we can deliver another year of strong results, in line with our original guidance for 2023.”

WEC’s consolidated revenues totaled $2.9 billion, down $20 million from the first quarter a year ago.

The utility said residential electricity use dropped by 5.8% compared to last year’s first quarter. Small industrial and commercial customer electricity consumption fell by 3.4%, and large commercial and industrial customer electricity use declined 3.9%.

Klappa said WEC continues to make progress on its $20.1-billion, five-year environmental, social and governance plan. He said it’s the largest five-year investment plan in the history of the company and should drive compound earnings growth of 6.5% to 7% annually from 2023 through 2027.

“As we look to the future, it’s clear that the mega-trend of decarbonization and the need for even greater reliability will drive investment plans that are long and strong,” he told analysts.  

WEC CEO Scott Lauber said that since last December, the Wisconsin Public Service Commission has granted approval for two solar battery parks and WEC’s purchase of a portion of the solar and natural-gas output from Alliant Energy’s West Riverside Energy Center.

Lauber said work continues on Badger Hollow II Solar Farm and the Paris Solar Battery Park, in which WEC shares ownership interest with other utilities. He said the projects’ remaining solar panels are clearing customs in Chicago, and WEC hopes to place the solar parks into service late this year or early next year.

PJM Stakeholders Refine CIFP Capacity Market Proposals

VALLEY FORGE, Pa. — Stakeholders last week continued to refine proposals to overhaul PJM’s capacity market through the second phase of the RTO’s Critical Issue Fast Path (CIFP) process.

The first stage two meeting on April 19 featured presentations from American Municipal Power (AMP), the Independent Market Monitor and a joint proposal from the East Kentucky Power Cooperative and Daymark Energy Advisors.

A second meeting on April 26 included presentations from MN8 Energy and the Capacity Coalition, a group of five generation companies collaborating to create a combined package. Vistra and Autumn Lane Energy were also scheduled to present on the that day but had to postpone until May 17 because of time constraints.

The proposals aim to address several issues highlighted by the PJM Board of Managers when it initiated the CIFP process in February, including evaluating whether the Capacity Performance (CP) construct is adequately incentivizing resources to meet their obligations and creating stronger winter or seasonal requirements for accreditation and fuel security standards.

The second phase of the process involves forming proposals, which will be finalized in the third stage and voted on by the Members Committee in August. PJM’s Dave Anders reiterated that there is not a hard line between the second and third phase, and proposals can continue to be created and modified at any point.

EKPC and Daymark Propose Two Types of Capacity

The proposal from EKPC and Daymark would create base and emergency capacity variants, with the latter being designed to address extreme weather conditions. Emergency capacity would also be required to have firm fuel or the technical equivalent to it, be available to commit within two hours’ notice and demonstrate the ability to financially withstand any non-performance penalties should it not operate.

“Should they fail to perform and thus not be paid as a consequence of that nonperformance and it could have a substantial impact, the next step should not be that they leave the market because that would be problematic,” Daymark’s Marc Montalvo said.

The base capacity would be focused on addressing systemic conditions and wouldn’t include winterization requirements above those already mandated by NERC. However, the PJM proposal would require all capacity resources to winterize to a higher standard or not receive any revenues for those months.

Adrien Ford of Old Dominion Electric Cooperative said multiple connections to gas pipelines may not be useful as a firm fuel qualification, given that in some locations a single pipeline connection can be more reliable than multiple pipelines in another location.

AMP Seeks Subannual Accreditation

AMP presented a proposal that would create sub-annual accreditation and replace capacity performance, which penalizes and rewards generators depending on whether they meet their obligations during emergencies. Under the concept, all capacity resources would be required to participate in sub-annual auctions, which would clear after the annual Base Residual Auctions (BRAs). Auctions would also be held closer to the delivery year, a shorter time frame than the current three-year advance schedule, reflecting market participants’ experience with auction delays leading to compressed timelines.

“The idea would be that we don’t do away with annual [accreditation] outright. … We firmly believe that the majority of the capacity that clears should be annual, but recognize that monthly or seasonal has value,” AMP’s Steve Lieberman said. The specifics of how granular sub-annual could go would depend on stakeholder feedback in the coming months, he said.

The proposal would replace CP with a regular testing requirement consisting of a penalty and reward structure based on testing performance. The incentives would be based on capacity market revenues and operate on a “pay as you go” basis.

Independent Market Monitor Adds Detail to Proposal

Monitor Joe Bowring provided additional detail on the proposal he unveiled during the first-phase CIFP meetings. The proposal would seek to identify the energy needs for each hour of a delivery year and provide capacity revenues that cover the avoidable costs for generators meeting that need. Capacity would be paid based on annual auction clearing, hourly supply and demand and an annual avoidable-cost rate (ACR).

The Monitor’s plan would base accreditation on a unit’s installed capacity (ICAP) multiplied by its modified availability factor (MAF), an attribute which aims to provide a methodology to capture the availability of all resource types by incorporating forced outage rates, maintenance outages and intermittent resource availability. Bowring said availability would be a stronger measure than PJM’s current effective load-carrying capability (ELCC) measure.

All resources holding capacity interconnection rights (CIRs) would be subject to a must-offer requirement for that capacity and weekly generator testing. Capacity resources would also be required to possess firm fuel or the technical equivalent. For intermittent resources, that would mean being obliged to perform at their full possible output when called upon. Winter Storm Elliott last December showed, however, that firm fuel is not a guarantee of the ability to perform when called upon.

Weekly testing may be considered an “extreme position” for many stakeholders, Bowring said, but he argued that regular testing throughout the year, not just during the summer, recognizes that resources need to be able to perform any time of year.

“If there had been adequate testing, we would not have had either the polar vortex or Winter Storm Elliott” challenges, he said.

Casey Roberts, with the Sierra Club, questioned whether the Monitor’s proposal would consider gas generators to be available if they did not nominate for fuel ahead of potential emergency conditions. Bowring responded the proposal doesn’t currently address that, but it is something all proposals will have to weigh.

Capacity Coalition Presents Short- and Long-term Proposals

Emma Nix of Leeward Renewable Energy and John Horstmann of AES presented a Capacity Coalition proposal that aims to introduce short-term changes to the capacity market through the CIFP process, while putting long-term changes on the table.

The short-term changes include retaining the status quo of exempting renewable resources from the capacity market must-offer requirement, developing transparent and coherent triggers for a Performance Assessment Intervals (PAI), increasing market seller’s flexibility in reflecting their risk in their market seller offer caps (MSOCs), and changing how thermal resources are accredited to reflect expectations of how they would operate through weather and historical performance.

The proposal says that, in the short term, the status quo must-offer exemptions for intermittent and limited-duration resources should remain in place given that capacity is an annual product that commits those resources around-the-clock at times they may not reasonably be expected to be provide capacity. Renewable and storage resources need the exemption so they can adjust their capacity offers based on their individual risk tolerance for Capacity Performance penalties should a PAI be called when the resource is not online, Nix said. Implementation of the seasonal proposal in the long-term would negate the need to maintain the must-offer exception in the short term.

The proposal would also only allow generators to be penalized when there has been advance notice of a PAI, when PJM is not exporting to non-firm load commitments in other regions and when the RTO does not have adequate system reserves. It would limit the bonuses derived from the penalties to only be payable to resources that participate in the capacity market. They are currently paid to any generator that performs above expectations.

PJM’s Becky Carroll said the RTO’s proposal to eliminate the pre-emergency demand response as a PAI trigger could effectively allow DR deployments to serve as advance notice for the potential for generators to be subject to penalties, though she added that there could be PAIs that don’t follow a pre-emergency DR call.

Horstmann said there’s an open question as to what obligations a capacity resource committed in PJM might have to serve load in other regions during an emergency. The coalition proposal seeks to define that as being an obligation to serve PJM’s load.

The proposal also calls for the creation of Capacity Performance quantified risk (CPQR) values for resource classes, to reduce the administrative burden in the unit-specific MSOC process while still allowing companies to reflect their risk across their portfolio.

The long-term side of the proposal calls for a transition from a single annual price to a seasonal capacity model consisting of 12 monthly intervals and four daily intervals by 2030.

The seasonal proposal would align accreditation and offers with how resources are capable of performing during specific times of day. Most important, the RPM auction would set the price for each interval allowing market forces to appropriately establish prices based on PJM system supply and demand needs to incentivize new capacity entry, particularly during times of system need. The coalition includes Leeward, AES, Pine Gate Renewables, Ørsted and Cypress Creek Renewables.

MN8 Energy Suggests ‘Pay as You Go’ Model

A proposal from MN8 Energy aims to build on PJM’s proposed accreditation and risk modeling — namely, capturing a larger breadth of factors affecting generator operation, such as temperature impacts and lead time — while proposing a “pay as you go” model for performance assessment, a seasonal capacity market and additional inputs to CPQR.

MN8’s presentation said PJM’s two-tiered PAI system risks including hours that are not relevant to maintaining reliability and could incentivize some resources in a discriminatory fashion. The PJM proposal would have a minimum of 30 assessment hours for each delivery year, with generators’ performance being assessed in the tightest hours if there are not 30 emergency hours in a delivery year.

The proposal would instead use a pay-as-you-go design for performance assessment where a performance factor would be determined for each generator at the end of a delivery year to calculate compensation. Those resources that underperform would collect a portion of revenues cleared in the BRA, while overperformers would receive all their cleared revenues plus a portion of uncollected revenues as a bonus.

Should the capacity market continue to carry a significant risk of penalties, the MN8 proposal suggests that CPQR should consider opportunity costs, expectations of penalties and bonuses, and the costs to manage risk.

P3 Challenges FERC Ruling on PJM Changes to 2024/25 BRA at 3rd Circuit

The PJM Power Providers (P3) last week asked the 3rd U.S. Circuit Court of Appeals to overrule a FERC order allowing PJM to recalculate the reliability requirement parameter for Base Residual Auctions (BRAs) after bids have been submitted but before the auction closes.

The commission’s February order was centered on the 2024/25 auction, which would have seen capacity prices increase fourfold for the DPL South locational deliverability area. (See FERC OKs PJM Proposal to Revise Capacity Auction Rules.)

PJM attributed the increase to the reliability requirement calculation including resources that didn’t ultimately bid into the capacity auction. It explained that certain resources, such as disproportionately large generators or intermittent resources, can cause an increase in the reliability requirement to account for the imports needed when they are unavailable.

The RTO “ran an auction consistent with the rules; they didn’t like the outcomes of that auction, and they changed the rules,” P3 President Glen Thomas told RTO Insider.

He said that changing auction rules after companies have entered bids in part informed by those rules amounts to retroactive ratemaking and undermines confidence in the markets.

“If that’s going to be the new normal, that’s going to be something everyone participating in the PJM markets is going to have to consider,” he said.

P3 in its filing pointed to Commissioner James Danly’s dissent from FERC’s order in which he predicted it would be struck down by the courts for violating the filed-rate doctrine. He compared changing auction parameters after bids have been submitted to a game of blackjack in which the house changes the rules after the cards have been revealed.

“The house saves a bit of money on one hand, but no one ever plays blackjack at the Federal Energy Regulatory Casino again. That is this case. The only difference is that the capacity market is not a game but rather the mechanism by which we ensure sufficient generation resources are built and maintained to keep the lights on,” Danly wrote.

Brattle Report Sees Benefits for SC RTO Membership

Participating in an RTO could provide South Carolina with benefits of up to $362 million per year, according to a report Brattle Group presented to a special joint legislative committee on Monday.

Annual Benefits vs Status Quo (Brattle Group) Content.jpgBrattle Group estimates South Carolina ratepayers can save $25 million to $120 million in the near term and $150 million to $370 million in the long-term if the state transitions to full or partial use of competitive generation supplies. | Brattle Group

The report to the Electricity Market Reform Committee found that joining PJM would lead to the most benefits (up to $362 million per year), followed by South Carolina — and possibly some of its neighbors — forming a new organized market in the Southeast (up to $187 million). The report also covers a system like CAISO’s Western Energy Imbalance Market (as much as $25 million in net benefits) or setting up a joint dispatch agreement (JDA) between that state’s utilities that would save up to $11 million annually.

Duke’s two South Carolina utilities operate under a JDA, which could be expanded to include Dominion, Santee Cooper (a state-owned public utility) and others that serve the state.

South Carolina could also integrate with an existing RTO, but under a new governance model that would be similar to the Western EIM, with the addition of a day-ahead market and resource adequacy pooling.

Brattle said its savings projections were in line with other benefits studies around the country, which show 4 to 8% operational savings from RTO membership. When Louisiana joined MISO, it was able to cut its reserve margin from 18% to 12%, which is consistent with the savings projected in South Carolina.

Benefit Cost Analysis (Brattle Group) Content.jpgBrattle Group estimated South Carolina customers can save up to $360 million per year if the state participates in a regional wholesale market. | Brattle Group

All the scenarios include operational benefits because they let power flow more freely over a wider region, but joining or creating an RTO comes with additional investment cost savings from coordinating resource adequacy over a broader region, which enables lower reserves for the state.

No Loss of Reliability

At Monday’s hearing, Brattle principal and report co-author John Tsoukalis said that the lower reserve margin would still provide the same level of reliability.

“Everybody in the market can achieve the same level of reliability with a slightly reduced reserve margin,” he added.

The main reason joining PJM leads to more benefits than setting up a new Southeast RTO is that South Carolina’s immediate neighbors have similar supplies, so trading power would not bring the state’s utilities as much income as linking up to the more expensive market serving the Mid-Atlantic and Midwest, Tsoukalis said.

Committee members at the hearing asked questions about Brattle’s conclusions, and legislators will use the report to inform their decision on any changes to the state’s regulatory structure. Committee co-chair Sen. Tom Davis (R) said at the hearing that the committee must make recommendations to the full legislature by January.

Setting up a joint JDA, an EIM or a new RTO are all lengthy processes that would include coordinating with entities outside of South Carolina’s control.

Joining PJM is the most expeditious path to full RTO membership, with PJM in the past having taken on new members in as little as 18 months.

“Under this model, South Carolina would operate within all existing RTO market and governance structures, including the option to retain its vertically integrated and state-jurisdictional utility structure,” Brattle said in the report.

Brattle found the biggest benefits came to South Carolina when it worked with its neighbors on its decision, advising the legislature to especially reach out to North Carolina. Dominion Energy North Carolina is in PJM already, but the rest of the state is not in any market.

South Carolina is also considering retail market reforms, but Tsoukalis said that moving on wholesale reforms first would make the most sense as they will inform potential changes to its retail regulations.

The committee posted a document of comments on the study, and while the state’s utilities largely focused on technical findings, AARP South Carolina opposes joining an RTO, saying it bases its views on “the realities of RTOs after 25 years in states that have them.”

“Our members in Texas and California have suffered from power interruptions and higher electricity prices caused by the complicated new RTO-induced structures where no one is clearly in charge of keeping the lights (and air conditioning and heating) on,” AARP said.