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November 1, 2024

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DC Circuit Faults FERC on Cost Allocation of New Jersey Transmission Projects

FERC failed to explain why the DFAX method should be used to allocate the costs of two North Jersey transmission projects but not for a similar project in Artificial Island, the D.C. Circuit Court of Appeals ruled last week, partially supporting appeals by Consolidated Edison (NYSE:ED), the New York Power Authority and two merchant transmission operators (15-1183).

The court also rejected PJM’s “de minimis” exemption for applying DFAX, short for “solution-based distribution-factor analysis.”

But the court’s Aug. 9 order rejected a related challenge by the New Jersey Board of Public Utilities, ruling that Public Service Electric and Gas (NYSE:PEG) customers would foot the bill for the North Jersey projects after Con Ed terminated its use of the “PSEG wheel,” an agreement that allowed the utility to deliver power to New York City through PSE&G transmission.

The 43-page order addressed 13 petitions for review challenging 20 FERC orders, “involve numerous parties, implicate a series of related legal issues and arise from a complex procedural history,” the court said.

Bergen-Linden, Sewaren Projects

Much of the case involves $1.3 billion in transmission upgrades authorized by PJM to address short-circuit problems between PSE&G’s Bergen and Linden switching stations and repairs to and around the utility’s Sewaren substation.

To address the short-circuit problem, PJM directed PSE&G to expand the Bergen-Linden corridor into a double-circuit line with higher voltages. The project incidentally also provided additional protection against thermal overloads.

Con Ed and NYPA — as well as Linden VFT and Hudson Transmission Partners, operators of two merchant transmission facilities — challenged FERC’s orders approving PJM’s five cost allocations from 2014 to 2017. Linden and Hudson reroute electricity from New Jersey into the New York market and resell it at a profit when PJM prices are lower than New York’s.

Before they were relieved of liability for the Bergen-Linden and Sewaren projects, the four complainants — which the court labeled the “New York entities” — had been assessed approximately $115 million, which was paid.

PJM allocated most of the costs of the Bergen project ($763 million of $1.2 billion), and all the costs of the Sewaren project ($125 million), via DFAX. In 2014, PJM assigned most of the DFAX costs for Bergen-Linden to Con Ed ($629 million), with the rest allocated to Hudson ($69 million), PSE&G ($52 million) and Linden ($13 million). Sewaren’s costs were split between Con Ed ($64 million) and Linden ($61 million).

The DFAX method models how electricity will flow across a new transmission facility at moments of peak grid use and assigns costs proportionally, based on the projected use of the facility in each transmission zone of the PJM grid. DFAX was designed to apply to “flow-based” projects to increase transmission capacity. But the Bergen-Linden and Sewaren reliability projects were non-flow-based.

The New York entities complained that PJM’s allocations violated the cost-causation principle because the projects were intended to improve PSE&G’s infrastructure, but other parties were assigned most of the costs.

After FERC denied its request for rehearing on the cost allocation, Con Ed notified PSE&G that it would not renew their wheeling agreement. As a result, PJM eliminated Con Ed’s cost liability, reassessing Bergen-Linden’s DFAX costs to Hudson ($634 million), Linden ($132 million) and PSE&G ($128 million). Hudson and Linden responded by converting their firm withdrawal rights to non-firm, absolving them of cost responsibility under DFAX and leaving their costs with PSE&G.

In 2018, FERC reconsidered its use of DFAX on the Artificial Island transmission project, which was designed to address stability problems for three nuclear plants in South Jersey. On rehearing, FERC concluded that the beneficiaries of at least some non-flow-based projects are “not necessarily captured” by the DFAX method and directed PJM to adopt a different cost allocation method for stability-related projects. FERC approved PJM’s revised “stability deviation” method — which identifies which loads would most benefit from projects that address stability issues — in February 2019. (See FERC: Stability Deviation Method Best for Artificial Island.)

But FERC continued to defend the DFAX method for short-circuit projects like Bergen-Linden and Sewaren.

The New York entities contended that because the Artificial Island, Bergen-Linden and Sewaren projects all addressed non-flow-based issues, their costs should all have been allocated similarly.

FERC’s Artificial Island ruling concluded that “stability is analytically unique compared to voltage or thermal overload problems,” which are both flow-based. But the commission did not address whether short-circuit projects should also be treated differently from flow-based, the court said. “Therefore, FERC could not rationally explain its decision to treat Bergen-Linden and Sewaren differently from Artificial Island by simply pointing to its earlier finding that ‘stability is analytically unique compared to voltage or thermal overload problems.’ Instead, FERC needed to explain why stability is ‘analytically unique’ compared to short-circuit issues,” the court said.

In rehearing on Linden’s protest, FERC insisted DFAX should still be used to assign Bergen-Linden’s costs because it was similar to a thermal overload project. But “FERC did not adequately explain why that similarity mattered,” the court said. “Short-circuit issues, not thermal overloads, were the primary impetus for [Bergen-Linden]. While [Bergen-Linden] expanded the grid’s overall capacity, the same is true of Artificial Island.

“Given the similarities between the projects, basic rule-of-law principles required FERC to justify its different treatment of the projects. It needed to explain why, in contrast to Artificial Island, the costs of [Bergen-Linden] and Sewaren should be assigned via DFAX to the utilities whose electricity flows across the upgraded facilities, rather than to the projects’ other beneficiaries,” the court continued. “We do not hold that the use of the DFAX method for short-circuit projects violates the cost-causation principle per se. On remand, FERC may be able to provide a more satisfactory explanation of the distinction between stability-related projects and those that address short-circuit issues and to articulate why DFAX cost allocations are appropriate for the latter but not the former. But the commission ‘must provide an adequate explanation to justify treating similarly situated parties differently.’”

De Minimis

The court rejected the New York entities’ challenges to the use of netting and peak-load assumptions as part of the DFAX model, but it agreed with their complaint over the de minimis threshold, which exempts transmission zones with a distribution factor below 1% of cost responsibility.

Because distribution factors measure a zone’s use of a facility relative to its total load, the de minimis exception depends on the size of the zone, not on the zone’s share of the facility’s total flow, the court said.

A zone with load of 1,000 MW that uses 9 MW of a 30-MW facility — almost one-third of the total flow — would be exempted because the distribution factor would be only 0.9%.

“The de minimis threshold exempts zones from bearing any costs based on their load size — a quality unrelated to the burdens they impose on or the benefits they receive from any individual facility. And in so doing, it unduly discriminates against small zones, which must absorb higher cost allocations after large zones are exempted,” the court said. “Peak load sizes vary greatly across the relevant zones, which makes the de minimis exception border on absurd.”

PSE&G’s peak load is about 11,000 MW versus Hudson’s 320 MW. “So if PSE&G used 100 MW of flow across a transmission facility (yielding a distribution factor slightly under 1%), and if Hudson had 4 MW of flow across the same facility (yielding a distribution factor slightly over 1%), then PSE&G but not Hudson would be exempt from paying any of the facility’s costs, even though PSE&G derived 25 times more of the benefits,” the court said. “And because the large PSE&G would not have to pay any costs of the facility, the small Hudson would have to bear a substantially greater share of those costs.”

NJ BPU Challenge Rejected

The New Jersey BPU challenged FERC’s orders reallocating costs for the Bergen-Linden project from Con Ed, Hudson and Linden to PSE&G.

The court said FERC correctly determined that Con Ed did not have to pay project costs after the termination of the service agreements, noting that the Bergen-Linden project was planned solely by PJM.

The court said the BPU presented a “powerful argument” that Linden’s relinquishment of its firm withdrawal rights and its election of firm point-to-point service allowed it to receive the same benefits from the Bergen-Linden project without any of the costs.

But it said it lacked jurisdiction to consider it because the BPU had not first raised the issue in its rehearing requests with FERC.

The BPU also contended FERC conducted a “siloed analysis” that did not consider the “total effect” of its orders, which it said left New Jersey ratepayers with an “exceedingly disproportionate share” of the costs.

“But FERC did perform the kind of back-end analysis that the New Jersey board claims was required,” the court said. “FERC recognized that the [Bergen-Linden] project was planned by PJM, and [it] relied on PJM’s statement that the project would still be needed in New Jersey ‘even if there were no flows on the transmission facilities interconnecting New York and New Jersey.’”

Orders Vacated

The court vacated FERC’s denial of two Linden complaints and remanded them for further proceedings. It also vacated the commission’s denial of Con Ed’s complaint and remanded it for further proceedings on the de minimis issue.

It also vacated FERC’s 2020 order (ER17-950) reallocating the cost of the North Jersey projects reflecting the end of the PSEG wheel and rejecting Linden’s challenge and remanded it on both the Artificial Island and de minimis issues. (See FERC Rebuffs Challenges to PJM Tx Cost Allocation.)

“FERC did not raise a procedural bar to the New York entities’ challenges there, instead rejecting them on the merits for reasons we have found defective,” the court said. “On remand, FERC may consider in the first instance whether the challenges to PJM’s 2017 cost reallocation are procedurally barred.”

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ACORE Panel Lauds MISO Tx Benefits Process

An American Council on Renewable Energy (ACORE) panel last week largely agreed that MISO’s current transmission benefits process could serve as a blueprint for the country.  

Industry experts analyzed the RTO’s business case behind its recently approved long-range transmission plan (LRTP) as FERC prepares to issue a rule on regional transmission planning and cost allocation (RM21-17). (See FERC Issues 1st Proposal out of Transmission Proceeding.)

“I usually say cost allocation is the biggest barrier to long-term transmission development, and, of course, the key to cost allocation is to find transmission plans where the benefits outweigh the costs,” Grid Strategies President Rob Gramlich, said. “This is really important, to measure these benefits and get it right.”

Gramlich said during the Aug. 9 webinar that the country could use a standardized method for quantifying transmission benefits.

“There isn’t really a standard of how to do this. Even the categories themselves differ,” he said, adding it would be helpful if FERC created consensus on benefits categories and their metrics.

Gramlich said MISO has been a leader in proactive, multi-benefit planning beginning with its 2011 Multi-Value Project (MVP) portfolio — lines now delivering wind power from the Upper Midwest — and its recently approved LRTP. (See MISO Board Approves $10B in Long-range Tx Projects.)

He said beyond MISO’s recent success, there’s a widespread absence of effective transmission planning. Regions aren’t planning using scenarios or a portfolio approach, he said.

Gramlich said transmission planning has been in decline since 2013, when about 4,000 miles of 345-kV and higher lines were added.  

“We did a whole lot of successful transmission planning a decade ago,” he said. “But since then, unfortunately, it’s been sort of going down to a trickle because of the lack of effective transmission planning. Hopefully, we’re in the process of reversing that.”

Gramlich called on grid operators to do “at least an initial screening” of the 12 transmission benefits FERC identified in its notice of proposed rulemaking and pursue the ones that show significant benefits.

He said MISO arrived at a set of benefits that seemed to make sense for its LRTP planning. Other regions can take a similar approach to come up with different menus of benefit categories, he said.

While the LRTP benefit-cost analysis included congestion savings, resource adequacy savings and avoided risk of load shed and transmission and generation investment, it didn’t include seven other benefits FERC suggested in the NOPR. MISO did include decarbonization as a benefit, something the commission hasn’t called for.

The NOPR asks regions to consider the transmission benefits of avoided reliability and aging infrastructure projects, production cost savings, lower transmission energy losses, reduced chances of load shed or lowered reserve margins, diminished congestion, mitigation of extreme events and system contingencies, tempering of weather and load uncertainty, capacity cost benefits from reduced peak energy losses, deferred generation investments, access to lower cost generation, increased competition and increased market liquidity.

MISO’s first LRTP portfolio is expected to deliver $37.3 billion from its defined benefits to ratepayers from 2030 to 2050. The grid operator also estimates that the plan will help facilitate the 56 GW of new renewables it anticipates adding over the next 20 years in its most conservative planning scenario.

Jeremiah Doner (ACORE) FI.jpgMISO’s Jeremiah Doner | ACORE

Jeremiah Doner, MISO’s director of cost allocation and competitive transmission, said it’s “not an easy endeavor” to build a business case for a long-term transmission portfolio.

“There really isn’t a playbook to take from,” he said.

Doner said the LRTP business case has a lot of commonalities with FERC’s categories. He said planners considered how much time it would take to incorporate benefit categories versus how much value they would demonstrate. For example, Doner said the LRTP’s savings from transmission energy losses weren’t promising enough to quantify.

He said it’s important to allow grid planners flexibility in what benefits they choose to quantify. He noted that MISO used different benefit metrics between its multi-value projects and its LRTP portfolio.

ITC Holdings’ manager of federal affairs, Devin McMackin, said his company believes MISO’s business case can be held up as a model for the nation.

“The important thing is that we can now repeat this and double down on these types of regional planning efforts, especially now that we have a climate bill that has passed Congress,” he said.

McMackin said it seemed that FERC’s NOPR was “taking cues” from regional planning MISO performed under its MVP and the LRTP portfolios.

“What we don’t want to see are these 10-year lulls in between regional planning efforts because these needs are only accelerating and it’ll start to get away from us if we don’t keep at it,” he said.  

It makes sense for FERC to prescribe a minimum set of benefit metrics and leave some flexibility between regions, McMackin said. MISO’s benefit metrics represent a good starting point for the commission to consider, he said, adding that having planners on the same page is crucial for interregional projects.

“If we want interregional planning to work, there has to be some level of common benefits basis,” he said, “so not only would FERC be aiding the regional planning process, but it would also set the stage for the ability to then move forward and do some interregional planning.”

Michigan Public Service Commission Chairman Dan Scripps said he considers the first set of LRTP projects as above other benefits and key to the future system’s reliability. He characterized long-range planning as a shift from “reactive, near-term” reliability planning to a “forward-looking, proactive” approach to addressing reliability.

“The challenge with the value of lost load is you sort of know the value when you don’t have it,” Scripps said. “Winter Storm Uri was very clear evidence of that, not just in the loss of life, but also in the bills that folks saw after the fact.”

Scripps said there’s a risk with undervaluing transmission reliability benefits. He said the public needs a prepared system with extreme weather becoming more common and severe.

Jennifer Easler, an attorney with the Iowa Department of Justice’s Office of the Consumer Advocate, said regional transmission planners should allow stakeholders access to modeling and planning assumptions early in the process so there’s a broad understanding of benefit analyses.

She said MISO’s set of benefits are appropriate for its backbone transmission buildout.

Gramlich said in a perfect world, all transmission benefits should be compared against all costs.  

“It’s almost an obvious point … You have to consider all the benefits and all of the costs,” he said. “It’s a little weird that we’re even arguing about whether one should consider all the benefits and that we have a FERC NOPR that says, ‘Yeah, here are 12 benefits but feel free to ignore a bunch of them.’ That’s obviously inconsistent with good public policy.”

Gramlich also said it’s clear that FERC’s list is limited to its jurisdiction under the Federal Power Act and cannot include a full array of benefits like economic development or local emissions reduction.

“At this point, I like the FERC list of 12,” he said later during the discussion.

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NAESB Confirms Gas-electric Forum in the Works

In response to a request from FERC Chairman Richard Glick and NERC CEO Jim Robb, the North American Energy Standards Board (NAESB) confirmed Thursday it will launch a forum aimed at addressing concerns raised after the winter storm of February 2021.

According to a press release from NAESB, the organization has not yet settled on a time or agenda for the forum, but an organizational meeting has been scheduled for 2-4 p.m. CT on Aug. 30 to “discuss the next steps the organization will take to host the forum.” The meeting will be held on Zoom and open to any interested parties.

Glick and Robb suggested the forum in a joint letter on July 29 addressed to NAESB COO Jonathan Booe and board Chairman Michael Desselle, citing FERC and NERC’s joint report on the storms. (See FERC, NERC Call for NAESB Forum on Gas-electric Issues.) The report called for FERC to establish “a forum in which representatives of state legislatures and/or regulators with jurisdiction over natural gas infrastructure [can] identify concrete actions” to improve reliability of the natural gas system as it relates to the bulk electric system.

The winter storms led to widespread generation outages, derates or failures to start that caused more than 23 GW of manual firm load shed mostly in Texas, the biggest firm load shed in U.S. history. According to the FERC-NERC report, natural gas facilities accounted for more than 50% of generation failures, both in terms of the number of units and their total nameplate capacity. (See FERC, NERC Release Final Texas Storm Report.)

Stakeholders in the ERO Enterprise have increasingly come to see the interdependency of the U.S. gas system and electric grid as a significant vulnerability, because of natural disasters like last year’s storms and cyber incidents like the ransomware attack on Colonial Pipeline in May 2021. (See Colonial Hack Sparks Competing Recommendations at FERC.) In their July letter, Glick and Robb said NAESB is “uniquely positioned” to organize the needed dialogue between the gas and electric industries; in their press release, NAESB’s leadership said they appreciated the confidence.

“NAESB has a long history of bringing diverse groups together to find consensus-based solutions to industry problems,” Valerie Crockett, vice chair of NAESB’s Wholesale Gas Quadrant, said in the statement. “While NAESB was not necessarily asked to develop specific standards in response to this request, it can serve an important role by recommending activities that appropriate entities within the energy markets may undertake to support grid stability.”

NAESB did announce a standards project aimed at improving gas and electric coordination in December but has not released any subsequent updates about the initiative. Booe told ERO Insider earlier this month that action had stalled after the organization was unable to “find consensus from our groups” about the appropriate direction of the project, but that Glick and Robb’s call for the forum might help reinvigorate the initiative.

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ERCOT Could Name New CEO this Week

The ERCOT Board of Directors could finally unveil its choice to lead the Texas grid operator in its continued recovery from last year’s winter disaster.

The Texas Public Utility Commission has posted an open meeting notice, as it is required to do whenever two or more commissioners meet together, in advance of Tuesday’s board meeting. The notice indicates the commission will “receive information, and may give information and participate in discussion … and possible action regarding ERCOT CEO selection and ERCOT CEO compensation.”

Greg Abbott (Twitter) Content.jpgTexas Gov. Greg Abbott is said to be exerting unusual control over ERCOT. | Twitter

However, according to a well sourced article last week by The Texas Tribune, it is Texas Gov. Greg Abbott who wields the power to choose ERCOT’s next CEO. The Tribune reported that the governor, who is locked in a close re-election campaign with Beto O’Rourke and appealing to his base through a heavy reliance on Twitter, has nixed a search committee’s preferred finalist, former CAISO CEO Steve Berberich, and has unsuccessfully urged Phil Wilson, CEO of Lower Colorado River Authority, to take the position instead.

Berberich has been painted as a No. 1 draft pick because of his ISO and information technology experience. A Texan, he served as TXU Energy’s IT vice president before joining CAISO in 2005. He retired from the California grid operator in 2020 and currently lives in McKinney, Texas, according to his LinkedIn profile. (See CAISO CEO Steve Berberich Retiring.)

Those close to the search told the Tribune the only reasons they were given for Abbott’s veto is because Berberich’s last job was in California. Attendees at SPP’s Markets+ development session last week in Portland, Ore., expressed surprise when the story broke; Berberich had a reputation for speaking colorfully and directly, as he did toward the end of his tenure when he warned of California’s reliability problems.

Berberich apparently had strong support from the market and ERCOT’s board. The directors met in an urgent conference call July 29 that turned into a long executive session. They adjourned the call without voting on any matters.

If no announcement comes this week, it may have to wait until the board meets again in October. That would be perilously close to winter and its potential for more extreme weather. That is also about the time the PUC is expected to take up the second phase of its market design.

Alison Silverstein, an Austin-based energy consultant with regulatory experience at both FERC and the PUC, told RTO Insider she was “appalled” by Abbott’s move, which has not been denied. She said her criteria for picking ERCOT’s next CEO would be “someone with proven experience in running the grid.”

“I don’t care if the [next CEO] is from California or one of ours,” Silverstein said. “I want the best possible person with rock-solid reliability and policy experience and management experience, because the safety of all Texans is the most important factor. Can this person run ERCOT to move us all to a better place in terms of grid reliability?”

Beth Garza 2022-04-21 (RTO Insider LLC) FI.jpgBeth Garza, R Street | © RTO Insider LLC

Beth Garza, a senior fellow with public policy research firm R Street Institute and ERCOT’s Independent Market Monitor from 2014 to 2019, pointed to ERCOT’s statutory status as the “independent organization” responsible for managing the grid.

“There’s a reason for that,” she said Friday. “Most people would say that’s independent from the market participants and the industry. The other part of that independence is you want an organization that is focused on the best and most appropriate technological ways to deal with whatever the problems are.”

And so Brad Jones, who was appointed as ERCOT’s interim CEO in the wake of the February 2021 winter storm that almost collapsed the Texas grid, is left cooling his heels. What was supposed to be a three-month temporary assignment has now turned into a 15-month gig. Jones has consistently said he doesn’t want the job on a fulltime basis; he said in April that he planned to leave ERCOT in June. (See “Jones: Will Stay as Interim CEO,” Overheard at GCPA’s 2022 Spring Conference.)

“I want to ensure they get the right person into this role,” he said during the Gulf Coast Power Association’s Spring Conference.

It is now August, and Jones is still waiting.

According to the Tribune and confirmed by ERCOT staff, the PUC, with its Abbott-appointed commissioners, reviews and approves every piece of communications before the grid operator releases it. “ERCOT does not speak for Gov. Abbott on what, if any, involvement he’s had,” has been staff’s response.

“The work of ERCOT is so important that I want its CEO and staff’s first priority to always be the integrity of the reliability of the ERCOT power system, minute to minute, every single day,” Silverstein said. “They should be able to operate our grid without having to care about the consequences of political agendas. The CEO’s first job is to make all the essential decisions to protect grid reliability … to run the organization that ensure the reliability of the grid and its resilience. If the CEO has to ask permission to take actions to protect the grid, we’ll lose the grid. We cannot have second guessing.”

Garza agreed, saying, “Politics and power system engineering may not be the best combination.”

Energy Advisory Committee OKs Report

The State Energy Plan Advisory Committee (SEPAC), referred to as a “little-known board of energy executives, oil and gas entrepreneurs and power utilities officials” by The Dallas Morning News, also raised consternation with industry observers last week as it held its second meeting.

The committee was created by legislation passed last year and charged with preparing a “comprehensive state energy plan” that evaluates barriers preventing “sound economic decisions” and the ERCOT market’s structure and pricing mechanisms. The plan, due to the state legislature Sept. 1, must also look at ways to improve the grid’s reliability, stability and affordability.

The committee comprises 12 members appointed by Abbott, Lt. Gov. Dan Patrick and House Speaker Dade Phelan. Chaired by LCRA’s Wilson, its members include NRG Energy’s Bill Barnes, Pedernales Electric Cooperative CEO Julie Caruthers Parsley and Oncor’s Daniel Hall, as well as consultant Joel Mickey and Mike Greene, retired staffers from ERCOT and Energy Future Holdings, respectively.

“Conveniently, the governor chooses Phil Wilson as the chair, because he’s got a large organization [behind him],” Garza said, noting SEPAC’s lack of resources.

The other members come from outside the electric industry, with their lack of expertise exhibited when Patrick Jenevein — with some wind development experience at a small Chinese clean energy projects company (Tang Wind Energy) but primarily focused on natural gas — suggested that coal is a renewable resource, according to energy consultant Doug Lewin.

Lewin was among public onlookers during Wednesday’s meeting, when SEPAC approved a draft of its report 7-5. At least one committee member voted against the draft because of a lack of time to review it, Lewin reported.

The report includes a recommendation that renewable resources be required to provide backup energy, despite thermal resources’ well documented contribution to the dayslong power outages after the winter storm. (See FERC, NERC Release Final Texas Storm Report.)

The report itself has not been publicly released, part of a pattern of secrecy surrounding SEPAC. Its meetings have been posted on the secretary of state’s website, which requires a sophisticated expertise with searches, but they were not livestreamed.

“I’m concerned about the legislature getting advice on something as important as electricity and natural gas policy from an organization that has met only twice and whose [members] haven’t had a significant amount of time to review the material that was developed,” Silverstein said, adding that its members were voting “blind.”

SEPAC “took a vote without the members being able to actually review the contents in detail,” she said. “So, if I were in the legislature, I would use this report, whatever it will ultimately contain, as just another piece of paper. I would not attach any significant weight to it.”

Garza was among several subject-matter experts who testified before the committee during its June meeting. She said at the time she thought it was a “check-the-box exercise” and would amount to little. However, Garza said she found the discussion to be “very valuable” and found herself wishing the PUC “would put themselves in a position to hear that kind of input and discourse.”

“There’ll be a report that goes to the legislature. I have every confidence it’s a report and will be written and given to the legislature,” she said. “What will it contain? Will the contents of that report be meaningfully developed with debate back and forth? No. They took input during one meeting and a second meeting to look at the document.

“You can’t just say, ‘I like a policy; let’s do it without doing an extraordinarily detailed analysis,’” Silverstein said. “It is my hope that the legislature will not jump too quickly to adopt any superficially appealing policy path, but rather rely on the kind of research and analysis on implications and alternatives that can truly give us reliability and affordability and resilience, rather than to catchy headlines.”

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MISO, SPP Identify Hotspots for Smaller Interregional Tx Projects

MISO and SPP said Friday they have numerous constrained flowgates that could become candidates for smaller, cross-border transmission projects.

The RTOs unveiled a list of their congested flowgates ripe for targeted market efficiency projects (TMEPs) during an Interregional Planning Stakeholder Advisory Committee (IPSAC) teleconference. It’s the first time they have searched for TMEPs. (See MISO, SPP Take on 2nd Interregional Planning Effort.)

The grid operators said that based on preliminary day-ahead market data, they have “numerous” constraints that have amassed a half million dollars or more in congestion annually.

SPP’s Neil Robertson said the frequently congested Neosho-Riverton flowgate on the Kansas-Missouri border was unsurprisingly “prominent” on the list of the most chronically congested permanent flowgates. With $71.6 million in market-to-market (M2M) charges since 2015, the flowgate is responsible for 20.9% of the $341.87 million in M2M settlements.

Neosho-Riverton’s $27 million of congestion charges the last two years is second to the Fargo-Sheyenne flowgate in North Dakota, which racked up about $36.5 million in congestion during 2020-2021.

The rest of the six most congested flowgates each accumulated anywhere from $12 million to $19 million in congestion charges during that timeframe. Robertson said staffs “commonly” found congestion in the Dakotas and along the Arkansas-Oklahoma and Kansas-Missouri borders.

Robertson said the RTOs are using their day-ahead market congestion values in their analysis because the “nuts and bolts” of their market clearing engines differ.

MISO and SPP are trying to get the most accurate congestion data, Robertson said, because congestion data determines which flowgates could use transmission improvements and how project costs are split between the RTOs.

He said the grid operators had gathered a “preliminary sampling” of congestion values that will be refined in the coming weeks. He also said staff are considering evaluating certain temporary flowgates for TMEP solutions and that some temporary flowgates could become permanent.

Robertson said the RTOs are borrowing from the MISO-PJM TMEP playbook, which has approved three small portfolios since 2017. MISO and PJM are working on another possible set of projects.

MISO and PJM TMEPs must cost less than $20 million, completely cover installed capital cost within four years of service and be in service by the third summer peak from their approval. The projects are assessed using a shorter time horizon than interregional market efficiency projects.

“We had to start somewhere, as I like to put it … moving the conversation forward,” Robertson said. He added that MISO and SPP could tweak some of the existing criteria.

He said using a $20 million cost cap, a third summer peak in-service date, and drawing on two years’ worth of historical congestion to determine project needs seems to make sense for the RTOs. The thresholds will ensure that a TMEP study doesn’t encroach on other, longer-term interregional planning on the MISO-SPP seam, he said.

Robertson said MISO and SPP have “vast” support to move ahead with the TMEP concept.

American Clean Power Association’s Daniel Hall asked the RTOs to share whether a project candidate barely misses or slightly overshoots the project criteria. He also said while ACP is a “strong supporter” of a TMEP study, he doesn’t want to see the projects become “Band-Aid solutions to more efficient and effective” projects.  

Robertson said MISO and SPP are holding off on finalizing any criteria until they have a better picture of congestion data.

The RTOs don’t plan on recommending a list of TMEP projects until the end of the year. They don’t envision designing regional cost-allocation methods or filing with FERC for approval of a TMEP process until the first quarter of 2023.

MISO and SPP will hold another IPSAC teleconference Sept. 20.

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Arizona Looks to Support Communities Facing Coal Plant Closures

With three coal plants slated for closure within the next 10 years, Arizona regulators, utilities and community members are exploring ways to repurpose the facilities, including options for clean energy generation.

Salt River Project (SRP) is launching a study to see which sustainable energy options would be viable at the site of the Coronado Generating Station, which is slated for closure by 2032. Hydrogen generation and solar with battery storage are among the technologies the study might explore.

SRP is in the process of finding an engineering contractor to help with the repurposing studies, a company representative said during an Aug. 1 Arizona Corporation Commission (ACC) workshop.

In addition, the city of St. Johns, near the Coronado facility, wants to investigate the feasibility of converting the coal plant to nuclear power generation. SRP has been working with the Gateway for Accelerated Innovation in Nuclear (GAIN) on the issue. GAIN is a U.S. Department of Energy Office of Nuclear Energy initiative to accelerate the commercialization of advanced nuclear technologies.

Asset Inventory

Amanda Ormond, co-director of the Just Energy Transition Center at Arizona State University, said during the Aug. 1 workshop that she’s hopeful ASU will receive a grant to look at repurposing the Coronado Generating Station and the Cholla Power Plant, which is scheduled to shut down in 2025. Arizona Public Service is part-owner and operator of the Cholla plant.

Ormond said the study would include an inventory of assets at the power plants, including items such as buildings, roads and water treatment systems. The condition of the assets would also be assessed.

The next step, Ormond said, would be to match the assets with types of businesses that could use them. The study would look at possibilities on a regional level, rather than one coal plant at a time. Ormond said she expects a decision on the grants next month.

The third Arizona coal-fired power plant slated for closure is the Springerville Generating Station, operated by Tucson Electric Power. TEP plans to close one unit at Springerville in 2027 and shut down the final unit in 2032.

The upcoming coal plant closures follow the shutdown in 2019 of the 2,250 MW Navajo Generating Station near Page, Ariz., which SRP operated.

Plant Closure Impacts

The ACC opened a docket in January 2021 to take a closer look at the impact of coal plant closures on surrounding communities. The Aug. 1 workshop was the second commission workshop on the topic.

The commission also held 11 town hall meetings in coal plant communities in April, May and June. In addition, a series of virtual town hall meetings took place last week. ACC staff plan to file recommendations in the matter by the end of September.

Repurposing the Arizona coal plants was also discussed during task force meetings organized by the ACC in March and April.

Ormond said during task force meetings that Arizona State University and Joseph City have been discussing potential new uses for the Cholla Power Station. In addition to renewable energy production, ideas included office space, metal and battery recycling, manufacturing, automotive salvage, or railcar and locomotive repair, according to a written summary of the meeting.

Task force participants noted that the coal plant owners will play a large role in determining the facilities’ future.

National Issue

Repurposing shuttered coal plants is an issue that’s being debated across the U.S.

Creative reuses include the conversion of the Blackhawk Generating Station in Beloit, Wis., into a student union athletics facility at Beloit College, Bloomberg reported. In other cases, retired coal plants have been turned into restaurants or offices.

Some of the facilities are being eyed for hydrogen production. In New Mexico, Escalante H2 Power (EH2) wants to convert the Escalante Generating Station, a coal-powered plant shut down in 2020, into a hydrogen production and power facility. (See Clean Hydrogen Interest Builds in New Mexico.)

The federal government has taken an interest in the future of coal plant communities. In January 2021, President Biden established through an executive order the Interagency Working Group on Coal and Power Plant Communities and Economic Revitalization.

The goal of the Interagency Working Group (IWG) is to coordinate federal aid to revitalize the economies of coal, oil and gas, and power plant communities. In an initial report, the working group identified 25 priority regions that have been hard-hit by reductions in coal production and consumption.

IWG created a clearinghouse of federal funding opportunities that may be available to energy communities.

The working group is soliciting public comments on the challenges facing energy communities and recommendations on how the federal government can help address those challenges. Comments will be accepted through Sept. 9 and may be submitted here.

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CARB Names New Top Executive

The California Air Resources Board has named Steven Cliff, administrator of the National Highway Traffic Safety Administration, as CARB’s new executive officer.

Cliff will replace Richard Corey, who retired at the end of June after serving in that role since 2013. (See CARB Top Exec Corey to Retire.) Cliff will start work at CARB on Sept. 12.

CARB’s board made the appointment, which Chair Liane Randolph announced on Friday.

“He is the right choice to implement the board’s vision during this crucial decade as we move ahead with the ambitious policies and programs to tackle the state’s climate emergency and continue to prioritize equity both within CARB’s workforce and in the communities we serve,” Randolph said in a statement.

Cliff is a familiar face at the California agency. He has held a variety of positions at CARB, starting as an air pollution specialist in 2008. While serving as CARB’s deputy executive officer from 2017 to 2021, Cliff’s work included overseeing regulations for all vehicles in the state, including passenger cars and medium- and heavy-duty vehicles.

In October 2021, President Biden nominated Cliff to serve as head of the NHTSA. He was confirmed by the Senate on May 26. Before his nomination, Cliff worked at NHTSA as a senior adviser and deputy administrator, according to his LinkedIn profile.

His transportation experience also includes a stint as assistant director for sustainability at the California Department of Transportation from 2014 to 2016.

Cliff returns to CARB at a critical time. The agency this year is finalizing its climate change scoping plan, a roadmap to bring California to carbon neutrality by 2045. After CARB released a draft version of the plan in May, Gov. Gavin Newsom called on the agency to take “even bolder action” to address climate change. (See Newsom Calls for ‘Bolder’ Climate Action in Calif.)

In addition to his professional credentials, Cliff has experienced the impacts of climate change firsthand. The Napa Valley native has been spending time rebuilding his family’s property after it was ravaged by the Atlas Fire — one in a group of October 2017 wildfires that became known as the Northern California firestorm.

Cliff received a bachelor’s degree and doctorate in chemistry from the University of California, San Diego. He completed a postdoctoral fellowship in atmospheric sciences at the University of California, Davis, where he has also worked as a research professor. Cliff lives in Sacramento.

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Illinois Climate Bill Could Force $2B in Transmission Upgrades, PJM Says

VALLEY FORGE, Pa. — Illinois’ climate goals could cost other states in PJM and MISO tens of millions in transmission upgrades over the next two decades as coal and natural gas power plants are forced to retire, PJM said last week.

PJM’s Illinois Generation Retirement Study found that the state’s Climate and Equitable Jobs Act (CEJA) could require $700 million in transmission upgrades through 2030 and an additional $1.3 billion by 2045 in the Commonwealth Edison (NASDAQ:EXC), FirstEnergy (NYSE:FE), Duquesne Light Co. and American Electric Power (NASDAQ:AEP) zones in PJM, and the Northern Indiana Public Service Co. (NIPSCO) (NYSE:NI) zone in MISO.

CEJA Tx Upgrade Costs (PJM) Content.jpgPJM estimated $1.3 billion in transmission upgrades to address thermal violations and $718 million to fix voltage violations as a result of plant retirements forced by Illinois’ Climate and Equitable Jobs Act. | PJM

CEJA, which Gov. J.D. Pritzker signed in September 2021, requires Illinois to eliminate carbon emissions from its electricity sector, with coal and natural gas generators shuttered or converted to zero-emission resources by 2045.

PJM predicts the retirement of almost 12,000 MW of generation by 2030 and nearly 23,000 MW by 2045. The RTO’s study identified plants scheduled to retire or that are likely to retire under CEJA based on publicly available emissions data and published heat rates. The RTO said it confirmed its findings with plant operators.

It also looked at potential replacement generation based on the 200,000 MW in its interconnection queue, 95% of which is solar, wind or hybrids including renewables and storage.

‘Initial Snapshot’

PJM said the study is a “very initial snapshot” of CEJA’s impact and that it is not proposing projects for the Regional Transmission Expansion Plan (RTEP) based on it.

“The cost estimates identified in this study will not actually be charged to consumers today,” PJM said. “As the system evolves with retirements and additions, we will have a better sense of the necessary transmission that will be needed to alleviate any reliability violations.”

PJM’s David Egan, who presented the study results to the Planning Committee on Aug. 9, said transmission upgrade costs could be reduced if the new generation is connected in favorable locations near recently deactivated plants. But upgrades might need to be accelerated if existing generators retire earlier than modeled, he said.

Asked about the potential impact of the incentives for carbon capture in the Inflation Reduction Act, which is awaiting President Biden’s signature, Egan said, “As these mandates or laws change, we will be modifying our studies.” (See related story, House Passes IRA, Sends to Biden’s Desk.)

MISO Impact

PJM said it will combine its study with an analysis MISO is expected to complete late this year or early next to determine optimized interregional projects that could cut costs.

“Our study report is emphasizing that both PJM and MISO recognize the need to collaborate on case assumptions and work together on solutions when appropriate,” said PJM’s Dan Lockwood.

“We anticipate MISO will identify additional impacts and costs,” Egan said.

The study does not include MISO’s long-range transmission plan’s (LRTP) Tranche 1 projects or its additional LRTP study work in the Illinois area.

PJM focused its efforts on MISO facilities along the RTOs’ seam and reviewed results with NIPSCO, the MISO transmission owner facing the biggest impact.

Not Included

PJM did not attempt to estimate early retirements because of current CEJA operational limits on natural gas-fired generation. It also did not include new renewable generation expected to be added to the system under CEJA’s incentives. In support of the bill, the Illinois Commerce Commission in July released its first draft of the Renewable Energy Access Plan (REAP) to improve transmission capacity to support increased renewables.

Costs for reliability-must-run contracts for units that PJM may ask to operate beyond their desired deactivation dates also were not included in the study.

State Impacts

“This puts Ohio in a very precarious position of having to pay for the decisions of another state,” said Mike Haugh, of the Ohio Consumers’ Counsel.

Greg Poulos, executive director of the Consumer Advocates of the PJM States, said he hoped the RTO would look for “opportunities to reduce these costs.”

PJM encouraged stakeholders to attend their CEJA workshop on Aug. 22 to learn more about the law and how it would affect their current or future investments.

Thermal Violations

PJM also identified upgrades that would be needed to comply with the thermal, reactive, stability and short-circuit requirements of NERC standard TPL-001-4.1.

Upgrades for thermal violations are estimated at $1.3 billion (64% of the total), almost evenly split between the 2030 and 2031-2045 study periods. About 15% of the total is for ComEd.

Because not much new generation is projected for Illinois, the study predicts increased East-to-West imports will cause “numerous, significant” thermal reliability violations in both the 2030 and 2031-2045 scenarios, PJM said.

The study said 69 upgrades to PJM’s 138-kV system are responsible for 82% of the thermal upgrade costs, with 16 345-kV upgrades accounting for the remainder.

Voltage Issues

Fixing voltage violations is estimated at $718 million (36%). “Unlike thermal violations, which tend to be more linearly aligned with megawatt impacts, voltage violations are nonlinear,” PJM said.

Voltage instability is expected to emerge by 2030, with widespread violations expected in 2031-2045 from a lack of reactive support in the ComEd area and increased imports into Illinois to serve load.

“If not resolved with system upgrades, [the voltage stability problems] could lead to blackouts driven by voltage collapse,” the report said. “This is indicative of the need for additional transmission system expansion — reinforcements to existing lines or construction of new lines — on East-West transmission paths between ComEd and AEP.”

ComEd and NIPSCO proposed static volt-ampere reactive compensators to address the voltage instability concerns and synchronous condensers to replace the megavolt-amperes reactive (MVARs) capabilities lost with the plant retirements, estimating costs at $525 million and $193 million, respectively.

“Voltage issues generally need to be fixed near where” the generation is removed, said Egan.

PJM’s Sami Abdulsalam said renewables’ ability to provide voltage support is limited. “A megaVAR is a megaVAR once it reaches the grid,” he said. But solar and wind cannot provide MVARs when they are not generating power, unless they also have storage, he said.

Impact on Individual TO Zones

PJM reported the need for the following upgrades on individual TOs:

      • ComEd: $100 million through 2030 to address thermal overloads, most for a new 138-kV line from Haumesser to West Dekalb to Glidden. ComEd expects an additional $160 million in thermal upgrades after 2030.
      • AEP: $63.5 million to solve thermal overloads through 2030, almost 80% to rebuild the 138-kV AltaVista-Otter-Johnson Mountain-New London line. After 2030: $178 million to solve thermal overloads, about 85% for a new 345-kV Segreto-Cook line and a rebuild of the 138-kV West End Fostoria-Woodville line.
      • FirstEnergy: $320 million to address thermal violations caused by an increase in East-to-West power flow by 2030, and about 60% for reconductoring five 138-kV circuits: two between Leroy Center and Mayfield, and three from Charleroi to Union Junction, Westraver and Yukon. After 2030, FirstEnergy estimates $180 million in upgrades to address thermal violations, more than 80% to reconductor the following 138-kV lines: Mitchell-Shepler Hill Junction, Peters-Union Junction, Yukon-Smithton, Leroy Center-Mayfield and Richland-Lockwood (AEP).
      • Duquesne: $180 million, most for new 138-kV facilities, including a new Elrama substation, two new ties and one new line. About 35 circuit miles of 138-kV reconductor is also needed.
      • NIPSCO: $125 million in upgrades over the study periods to address thermal-based reliability criteria violations.
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PJM Operating Committee Briefs: Aug. 11, 2022

Russia Showing Restraint in Cyber Responses

PJM Chief Information Security Officer Steve McElwee provided the Operating Committee a security update, saying Russia has continued to show restraint in retaliatory attacks against Western nations supporting Ukraine.

Although there had been concern that Russia would launch widespread cyberattacks, “their focus so far has been to augment their physical attack against Ukraine,” McElwee said.

In contrast, the NotPetya attack had “no boundaries on which organizations were victimized,” he said. The June 2017 malware attack on the websites of Ukrainian banks, ministries, newspapers and electric utilities also resulted in infections in Western Europe, the U.S. and Australia.

Researchers said the attacks they are seeing against Ukraine are contained to prevent collateral damage. However, McElwee said criminal and hacktivist groups like Killnet continue to threaten attacks and casualties on Russia’s behalf. “Most recently, they’ve been targeting Lockheed Martin,” he said.

Hybrid Manual Language Endorsed

The committee endorsed manual language conforming to FERC’s July 12 order accepting PJM’s clarifications on its rules for hybrid resources and mixed technology facilities (ER22-1420-002). The RTO filed its proposal on March 22.

The changes affect Manual 10: Pre-Scheduling Operations and Manual 14D: Generator Operational Requirements. In Manual 14D, the changes concern metering requirements, outage reporting and voltage schedules, with a new section 13 for mixed technology facilities.

Second ‘First Read’ on Max Emergency Status for Coal Plants

PJM postponed a vote on competing RTO and Independent Market Monitor proposals for managing remaining run hours for coal-fired and other generating resources limited by fuel shortages or environmental restrictions.

Because of changes to the proposals since the committee’s July meeting, “it was decided that another first read would be appropriate,” said PJM’s Jeff McLaughlin. (See PJM Considers Changes to Max Emergency Status for Coal Plants.)

PJM added references to coal- and natural gas-fired generating units subject to Illinois’ Climate and Equitable Jobs Act (CEJA).

The Monitor had multiple additions, including changing the reference to “fuel” to “fuel and consumables.” It also added more detail to the conditions that qualify as “fuel limits” for being eligible for maximum emergency status. They would be defined as physical events that affect the infrastructure used to “procure, treat or transport fuel or consumables” that are beyond owner control — meaning the generator has no other procurement options.

“Temporary” interruptions would be limited to seven days, with generators required to provide a projected delivery date from the supplier.

The IMM would create a new availability status for “fuel/consumables conservation” that would allow committed capacity resources with 10 days or less of inventory that do not qualify for the maximum emergency fuel limit to make its unit unavailable for economic dispatch. Such units would be subject to a penalty equal to their daily capacity value based on the Base Residual Auction price.

IROL-CIP Cost Recovery

PJM presented a first read on a procedure for obtaining reimbursement for compliance with NERC Critical Infrastructure Protection standard CIP-002-5.1, which requires identification of generating units that are critical to the derivation of interconnection reliability operating limits (IROLs).

Resources identified by PJM as an IROL critical resource would submit their capital and recurring costs for review by the RTO and Monitor annually. PJM would make monthly payments to the generators.

The issue will be brought to a vote at the OC’s meeting next month.

New Cold Weather Advisory 

Members heard a first read of manual changes to comply with NERC standards for cold weather preparedness: EOP-011 (Emergency Preparedness and Operations), IRO-010 (Reliability Coordinator Data Specification and Collection) and TOP-003 (Operational Reliability Data).

PJM is creating a new cold weather advisory to clarify RTO and member actions for gathering and reporting information required by the NERC standards. The advisory would be issued more than 24 hours in advance of a cold spell — likely three to five days in advance — and would precede the issuance of a cold weather alert.

The changes will affect Manual 14D: Generator Operational Requirements and Manual 13: Emergency Operation.

Generation owners will be required to ensure updated information on their units’ temperature operating limits in Markets Gateway.

PJM added a recommendation to its Cold Weather Preparation Guideline and Checklist to take into account the effects of precipitation and wind during cold weather preparation.

The committee will be asked to endorse the changes at its next meeting.

Manual 39: Nuclear Plant Interface Coordination

Darrell Frogg of PJM reviewed proposed changes to Manual 39: Nuclear Plant Interface Coordination as a result of a periodic review. The changes include updated references to NERC’s mission and its mandatory standards, as well as a list of revisions to plant-specific nuclear plant interface requirements.

The committee will be asked to endorse these changes at its next meeting.

PPL Dynamic Line Ratings Implementation Confirmed for Sept. 12

PPL (NYSE:PPL) is continuing plans for introducing dynamic line ratings to the double-circuit 230-kV Susquehanna-Harwood and the 230-kV Juniata-Cumberland lines on Sept. 12, PJM’s David Hislop told the committee.

A “go/no go” determination will be announced on Aug. 31, two weeks before the transition.

Assuming a decision to “go,” PJM will begin posting PPL’s forecasted DLRs at 3 to 4 p.m. on Sept. 12, and begin using the company’s ambient tables for reliability studies and the day-ahead market for Sept. 14. The RTO will then begin posting PPL real-time DLR data at 12 to 1 p.m. on Sept. 14.

Any changes to the plan will be communicated to OC stakeholders via Pardot.

PJM/IMM Proposal on Improving Renewable Dispatch

Members heard a first read of a PJM/Monitor proposal to improve the dispatch of renewable generators to address operational concerns.

PJM said it wants to increase the accuracy of renewables’ dispatch and improve its ability to forecast near-term changes in resource output. “As the number of renewable resources grows, it becomes increasingly difficult to manually manage the dispatch,” PJM said in its problem statement.

The proposal would require intermittent units to have an economic minimum of zero and to have an infinite turn down ratio — the difference between eco max and eco min.

The proposal also would require generators to update critical parameters every five minutes for real-time security-constrained economic dispatch (SCED) cases and hourly updates of parameters for intermediate-termed SCED cases. Current rules require hourly updates but provide limited guidance on specific parameters.

Wind resources are currently eligible for lost opportunity costs (LOC) when they are able to follow SCED dispatch instructions and have supervisory control and data acquisition capability to transmit and receive instructions from PJM. The RTO-IMM proposal would allow solar resources to qualify for LOC under the same rules.

PJM currently has no metrics measuring the impact of renewables’ dispatch. The proposal would establish metrics that the RTO would review monthly with stakeholders. Potential metrics include renewable forecast accuracy; curtailment frequency; real-time performance versus SCED expectations; and the accuracy of bid-in parameters.

The proposal also calls for development of a look-ahead tool to evaluate renewables’ impact.

Intermediate-termed SCED looks ahead about two hours, considering all resource types. The additional tool would be contingent on renewable forecasts reaching acceptable accuracy levels.

Implementation would be no earlier than the second quarter of 2023. The OC will be asked to endorse the proposal at its next meeting.

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PJM TEAC Briefs: Aug. 9, 2022

$400M in Supplemental Projects Announced

VALLEY FORGE, Pa. — PJM transmission owners last week, led by Dominion Energy (NYSE:D), presented the Transmission Expansion Advisory Committee with more than $400 million in supplemental projects.

Dominion outlined 13 supplemental projects totaling $366 million; all but two of them are the result of data centers or other “customer service” drivers. PJM has designated Dominion to construct a $603 million “immediate need” project to address short-term reliability issues resulting from data center growth through 2025. (See PJM Sees Additional $603M ‘Data Center Alley’ Tx Spend.)

In addition:

      • UGI (NYSE:UGI) presented a $33 million project to construct a new 230-kV switchyard (nine breakers in a breaker and half configuration) and two 230-kV supply lines of about 2.5 miles to serve a new large load customer in the Nanticoke area.
      • PEPCO (NASDAQ:EXC) presented plans for a $420,000 project to upgrade an obsolete relay on the 230-kV Ritchie-Oak Grove line (No. 23058) at the Oak Grove Substation.
      • PECO Energy said it will add a third 230/13-kV transformer at its Master Distribution Substation to relieve surrounding substations and provide capacity for growth at a cost of $800,000.

$24M in Additional Tx Upgrades Needed for Cheswick Retirement

PJM is recommending $24 million in additional transmission upgrades to address thermal violations resulting from the March 2022 retirement of the 567.5-MW Cheswick generating plant in the Duquesne zone. The Springdale, Pa., plant was the last coal-fired generator in Allegheny County.

In August 2021, PJM said its analysis concluded that new and existing baseline projects would resolve any problems resulting from the retirement.

But the RTO told the TEAC last week that it had discovered “missing N-1-1 thermal violations” during a review of the analysis results using 2023 summer and 2027 summer load flow models developed this year. “The further investigation confirmed that there was [an] issue in the study file used for the N-1-1 thermal analysis performed in 2021,” PJM said.

The RTO is proposing the installation of a series reactor on the 138-kV Cheswick-Springdale line ($9 million) and a transmission line rearrangement that includes the replacement of four structures and reconductoring the Duquesne portion of the 138-kV Plum-Springdale line ($15 million).

The projected in-service date is Dec. 31, 2024. Operating measures have been identified to address reliability problems before then.

The RTO said it also is conducting reliability analyses for the retirement of NRG Energy’s (NYSE:NRG) Joliet Units 6, 7 and 8 (1,381 MW) planned for June 1, 2023, in the ComEd zone, and the Dickerson combustion turbine (18 MW) scheduled to retire in the PEPCO zone on Oct. 23, 2022. The Joliet plants — which were converted to gas from coal six years ago — are closing because of the Illinois Climate and Equitable Jobs Act (CEJA), which requires the state to eliminate carbon emissions from its electricity sector. (See related story, Illinois Climate Bill Could Force $2B in Tx Upgrades, PJM Says.)

Officials said the Vineland CT (21.1 MW) in the ACE zone can retire as scheduled on Oct. 10 after an analysis found no reliability violations.