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December 17, 2025

MISO Keeps Advisories in Effect a Week After Laura

MISO staff continue to keep advisories in effect and compile data on the MISO South emergency and subsequent rolling blackouts caused last week by Hurricane Laura.

The RTO said Laura was the strongest storm to hit Louisiana in 150 years.

“The southeastern Texas and southwestern Louisiana areas of the MISO footprint sustained substantial damage to the transmission facilities under MISO’s functional control, as well as to interconnected generation and distribution facilities, requiring careful and deliberate focus on maintaining system stability,” the RTO said.

MISO Advisories
Restoration worker handling new wires | Entergy

Laura’s path of destruction Aug. 27 caused MISO to direct Entergy to employ periodic power outages in the western half of the West of the Atchafalaya Basin (WOTAB) load pocket that spans the Texas-Louisiana border. (See MISO Enacts Rolling Blackouts in Laura Aftermath.)

MISO said that as a result of the widespread grid damage, the area’s constraint locations have temporarily changed. It said it is investigating the locations to include them in modeling.

“It is important that any unique restoration system conditions are captured correctly in MISO’s market models and the bids and offers they clear, to properly incentivize additional, economic generation as part of the restoration efforts,” MISO said.

The grid operator reported that $3,500/MWh value of lost load pricing was in effect for some of the WOTAB’s commercial nodes from 11:40 a.m. to 10:55 p.m. ET on Aug. 27.

MISO has put standing capacity and transmission advisories in place for the areas affected by the hurricane, warning members that generation and transmission capacity could become scarce as restoration work continues. It also canceled a monthly training drill on firm load shedding planned for Sept. 2 in MISO South because of an extended conservative operations declaration through Monday in some areas.

Chris Miller, FERC liaison to MISO, thanked MISO South members for their restoration efforts along the Gulf of Mexico and surrounding areas.

“I know it’s a big event. It’s an ongoing situation, and I want to give a hearty ‘thank you’ to everyone working to get power back to people,” Miller said during a Reliability Subcommittee meeting Thursday.

Entergy said the bulk of lingering outages lies in its Louisiana territory. The utility said that as of Thursday, it has restored 81% of the 616,000 power outages caused by Laura; however, it also said that more than 108,000 of the 271,000 Louisiana customers affected by Laura remain without electricity. The company said nearly all the 291,300 Texas customers affected by the hurricane would be restored by Friday.

MISO Advisories
Damaged transmission tower caused by Hurricane Laura | Entergy

Entergy said it is committed to a swift restoration but warned that customers in the city of Lake Charles and Cameron and Calcasieu parishes will “face weeks” without power.

“Our damage assessments indicate catastrophic damage to our electrical infrastructure. We expect the recovery to be as difficult and challenging as we have ever faced in the past,” Entergy said. “The damage from Hurricane Laura’s historic intensity caused catastrophic damage to the Entergy system across Louisiana and Texas. The eye wall, which brings the most damaging winds and intense rainfall, passed directly over Lake Charles, La., causing wide-spread damage to that area and our system.”

Entergy reported 219 out-of-service transmission lines, 292 damaged substations and sizable distribution system damage.

SPP CEO Barbara Sugg said before, during and after the storm’s landfall, there was coordination among SPP, MISO, ERCOT, regulators, American Electric Power and the Edison Electric Institute.

“Together, we addressed voltage and severe loading issues, monitored required load sheds and mitigated the risk of major, potentially catastrophic outages both during the event and through restoration efforts,” Sugg said in an emailed update. “Certainly, load shed events are unfortunate and undesirable. However, I’m proud of the interregional coordination to protect the bulk electric system.”

She said she has received “messages of gratitude” from MISO leadership.

More Detail on July Emergency

Meanwhile, MISO staff last week released more information on the July 7 maximum generation event that affected its North and Central regions.

Speaking during the RSC meeting, MISO System Operations Senior Adviser Gerald Rusin said the RTO may not have needed to enact emergency measures. He said MISO’s North and Central regions were spared from more intense heat by widespread pop-up thunderstorms that began around 1 p.m. July 7. While generation and load-modifying resources’ emergency ratings were available to meet forecasted load, Rusin said LMR use wasn’t necessary. (See Max Gen Event Managed Efficiently, MISO Says.)

“At the time that we made the declaration, the numbers were pointing that way,” he said, citing forecasted temperatures in the low 90s in the North and Central regions and a “near peak” combined load of 88.5 GW for the two regions.

COVID-19 pandemic load profiles that continue to be unpredictable also contributed to some uncertainty during the event, Rusin said. He said unplanned generation outages have been steadily increasing since April, possibly because of the pandemic. By July, unplanned outages had risen to more than 10 GW, uncharacteristically high for the month known for peak demand, he said.

“We need to see how this plays out in the months to come to see if the true effects of COVID caused the pattern to persist in this way,” Rusin said.

Ultimately, systemwide MISO load peaked at 114 GW for the month on July 8. The RTO experienced an average 88.4-GW load during the month, slightly higher than 2019’s 88.1-GW systemwide average.

Executive Director of Real-Time Operations Rob Benbow said MISO will update its termination declarations after some stakeholders said it wasn’t completely clear through RTO communications which emergency steps ended and when during the July event.

“We want to make sure it’s clear and that everyone is on the same page as we step down protocols,” Benbow said.

GridLiance Acquires Tx Facilities in Kansas

GridLiance said last week its High Plains subsidiary has acquired a 65% ownership stake in the 69-kV transmission system and related substation equipment of the city of Winfield, Kan.

The transaction marks the company’s first co‐ownership of transmission assets with a municipal utility under a development agreement with Kansas Power Pool, a municipal energy agency that provides energy and transmission services to Winfield and 30 other municipalities in Kansas.

“The successful closing of this transaction is an important step in bringing improved transmission reliability to Winfield customers and the region,” GridLiance CEO Calvin Crowder said in a press release. “It is another example of our long‐term commitment to invest in the electric grid and ensure the fair treatment of all transmission consumers.”

The city will retain 35% ownership in the facilities and will be responsible for their maintenance. Winfield will continue to own its electric distribution assets and continue to provide retail electric service in return for a franchise fee and economic development and community support funds from GridLiance. Financial terms of the deal were not announced.

GridLiance
GridLiance substation | GridLiance

The Dallas-based independent electric utility holding company and Winfield have already begun to relocate transmission lines damaged by years of flooding on the Walnut River. The work is expected to be completed by the end of the year.

“Joining forces with GridLiance will ensure we will continue to [provide reliable electric service] for the long term,” Winfield Mayor Phil Jarvis said. “We are already seeing the benefits of our collaboration with GridLiance.”

The transaction was completed once FERC in late August accepted SPP Tariff revisions adding an annual transmission revenue requirement reflecting GridLiance High Plains’ addition as a joint owner of Winfield’s transmission facilities (ER20-2195).

The acquisition is GridLiance’s second of the year. In February, its gained access to the GridLiance Gains Entry into MISO.)

SPP Briefs: Week of Aug. 31, 2020

SPP said last week it will begin allowing staff to return to its Little Rock, Ark., corporate headquarters in October, although the move is dependent upon “our community meeting certain milestones for health and safety.”

The transition back to the office is scheduled to begin Oct. 5. SPP will used a phased approach, with 20% of the staff returning at a time. The grid operator in mid-March sent home its non-operations personnel, though some individuals have returned in recent weeks.

“We will continue best practices to keep our employees healthy and provide our essential services,” CEO Barbara Sugg said in an email to stakeholders.

The RTO’s Board of Directors and other committees will continue to meet virtually through at least January. The board and Markets and Operations Policy Committee last met in person in January.

SPP
SPP plans to allow staff back to its corporate offices in October. | WER Architects

The White House Coronavirus Task Force last week placed Arkansas in the “red zone,” which recommends indoor dining be capped at 25% capacity and that bars be closed. The state on Friday reported a record 1,094 confirmed COVID-19 cases and 12 deaths, raising its totals to 64,174 and 873, respectively.

Sugg also took time to remark on SPP’s “collective progress” this year. Load has returned to pre-pandemic levels, while staff and stakeholders continue to prepare to launch the RTO’s Western Energy Imbalance Service market and conduct other strategic initiatives.

“Together we have navigated temporary and lasting changes to the way we work. … I know together, we stand ready to meet new energy challenges that arise,” she wrote.

Sugg said SPP is “working through the aftermath of Hurricane Laura,” which affected its footprint and those of neighbors ERCOT and MISO. The RTO has also supported western grid reliability by coordinating with CAISO, members and customers to ensure resources are available.

“We learn from each event we experience and take the opportunity to improve our own processes while also communicating with our peers about lessons learned from their perspective,” she said.

“Take good care, and please wear a mask,” Sugg said, in closing her email.

SPC Takes Look at Tx Planning

The Strategic Planning Committee is forming a task force — cumbersomely named the Strategic & Creative Re-Engineering of Integrated Planning Team (SCRIPT) — to evaluate all of SPP’s transmission planning and applicable cost allocation processes.

SCRIPT comprises 11 SPC and Members Committee representatives and will add a soon-to-be-named member from the Regional State Committee. Chaired by Director Mark Crisson, the group will report to the board and provide updates to the three committees.

“This is going to be a really important initiative that has the potential to have a major strategic impact on the organization,” Crisson said during an Aug. 31 SPC education session on transmission planning.

SPP
SPP’s transmission-planning roadmap extends into 2023. | SPP

During the session, SPP staff ran the committee through its planning initiatives and processes, including:

  • centralized coordinated process and integrated transmission planning;
  • cost-allocation alignment;
  • decision quality;
  • risk-based planning;
  • regional fuel mix;
  • generator interconnection (GI) improvements; and
  • model reduction.

SPP has seven planning departments. Staff conduct seven different planning studies, as well as compliance, seams and ad hoc studies. They are also responsible for resource adequacy analysis and model builds.

SCRIPT is expected to consider options to redesign those processes and produce a report with high-level recommendations by September 2021.

“We need to see how we can step back and integrate all the transmission functions we have,” said Casey Cathey, SPP’s director of system planning. “Everything we do has a reason. We have a reason for a GI process. We have a reason for reliability planning. The question is, how can we do it better?”

Staff are working on a planning roadmap to be presented to the board in January. SCRIPT is an important first step, Vice President of Engineering Antoine Lucas said.

“We will be looking for the SCRIPT to prioritize those initiatives and drive solutions through the working groups in an effective manner,” he said.

The SPC has also created the Energy Storage Resource Task Force to determine the strategic use of storage as capacity and in potential support of the grid. The task force is scheduled to complete its work in the first quarter of 2021.

PG&E Blacks out 500K Residents to Prevent Fires

Pacific Gas and Electric turned off power starting Monday night to nearly half a million residents two minutes after CAISO effectively ended its four-day blackout watch.

Strained capacity during a Western heat wave and lightning-sparked wildfires caused CAISO to issue blackout warnings over the long Labor Day weekend. (See CAISO Avoids Blackouts amid Brutal Heat, Fires.) High winds and the fear of utility-sparked wildfires drove PG&E’s intentional blackouts Monday night.

“Pacific Gas and Electric Co. has begun the process of power de-energization of numerous electrical lines as part of a public safety power shutoff [PSPS] due to severe weather conditions,” the utility said in a news release at 9:06 p.m.

The PSPS event affects 172,000 customers, or about 499,000 residents, in portions of 22 counties in the Sierra Nevada foothills, the Sacramento Valley and the northern San Francisco Bay Area.

At 9:04 p.m., CAISO relaxed its alert status, telling customers they no longer had to conserve power because of extreme heat and insufficient resources. The ISO declared Stage 2 emergencies Saturday and Sunday while warning it would call for rolling blackouts. It managed to avoid outages largely because of consumer conservation and help from neighboring utilities.

PG&E blackouts
| PG&E

The heat wave that brought record temperatures to Los Angeles dissipated Monday as a high-pressure ridge gave way to offshore winds along the California coast and to cooler air flowing into the Western U.S. from Canada, the National Weather Service said.

By Tuesday morning, strong northeast winds were blowing across interior Northern California — the same conditions that spread catastrophic fires ignited by utility equipment during the past three fire seasons. NWS issued a red-flag warning through Wednesday morning based on low humidity and winds that it said would gust from 35 to 55 mph in the mountains and foothills of Northern California.

Dry vegetation and the rush of air from the north meant a “large portion of the Western U.S. will experience another day of critical to extreme fire weather conditions — meaning any ongoing fires or new starts could experience very dangerous fire behavior and spread,” the weather service said.

In Oregon, Portland General Electric instituted the state’s first PSPS on Monday as high winds buffeted the Mount Hood area east of Portland. About 5,000 customers were intentionally blacked out, while 100,000 Portland-area customers lost power as wind knocked down tree limbs and power lines. (See High Fire Danger Prompts First Oregon PSPS Event.)

Smoke from wildfires in eastern Oregon and throughout California continued pouring into urban areas, producing a noxious mix of wind-whipped smoke.

Southern California will feel the winds next, the weather service said. Santa Ana winds, notorious for spreading wildfires, will blow into the Los Angeles area through Wednesday night. NWS issued red-flag warnings until 8 p.m. Wednesday.

“Fuels, after this historic heat wave, will be at critical levels as we enter into the Santa Ana wind event,” NWS warned.

Southern California Edison said Tuesday afternoon it could shut off power to 55,000 customers in six counties to prevent wildfires, but it had not yet instituted a PSPS as of press time.

NERC Updating Winter Prep Guide to Account for Wind

NERC last week previewed several changes it is making to its Generating Unit Winter Weather Readiness guideline to ensure balancing authorities are aware of wind turbines’ low-temperature cutoffs.

The temperature at which a wind generator must shut down to avoid turbine blade damage can vary, Richard Hackman, NERC senior event analysis adviser, told attendees of a webinar on preparing for the coming winter. For sensitive components including lubricants and uninterruptible power supply (UPS) batteries, it generally ranges from -30 to -10 degrees Fahrenheit. The ERO now wants generators to keep their BAs advised of that cutoff before an expected “winter weather event,” along with any changes to availability, capacity or other operating limitations.

“Those things need to be known by balancing authorities so that they can take them into account,” Hackman said. “These things are expected to run under certain conditions, and if the weather forecast says it’s going to be too cold to operate those generators, people need to be able to plan on what they’re going to use instead. And that needs to be communicated well in advance.”

One attendee asked whether BAs should already know the low-temperature cutoffs for their wind units.

“You would hope that they do, but last time we ran into an issue with wind turbine cutoffs, the BA got a little bit surprised,” Hackman said. “Some of the wind generation owners were also surprised by the cutoffs. Apparently, they weren’t that familiar with them.”

NERC winter prep
Preliminary reserve margins and reference levels for winter 2020/21 | NERC

He referenced the cold-weather event of January 2019, when MISO: Winter Emergency Another Signal for Grid Ops Change.)

NERC also added several “possible problem areas” that operators should check on their wind units before winter arrives:

  • lube oil and greases, which have temperature limits themselves, for mechanical equipment;
  • lead acid batteries or other UPS systems in exposed areas; and
  • adequacy and functionality of heat tracing, insulation and temperature-responsive ventilation.

Hackman said the last item is “actually for everybody out there and not just the wind turbines. … [It] is one that should have been applied a long time ago.”

One other change to the document will also apply to all resource types: NERC is advising generators to “schedule any needed cold weather-related inspections, repairs and ‘winterization’ work” for before the National Oceanic and Atmospheric Administration’s first frost dates for their areas. NOAA defines this as the earliest possible date that an area will experience temperatures below 32 F. For parts of the Upper Midwest, this can be as early as Sept. 1. Similarly, the ERO wants generators to wait until after their last frost dates to begin undoing their winterization.

NERC winter prep
| Shutterstock

Other minor updates include replacing references to the old Operating, Planning and Critical Infrastructure committees with the new Reliability and Security Technical Committee, as well as a page of links to cold weather-related Lessons Learned reports.

Stakeholders have until Sept. 21 to comment on the changes.

NERC also previewed this year’s Winter Reliability Assessment during the webinar, though it did not have much new to report.

Reliability Assessment Engineer Stephen Coterillo said preliminary data indicate capacity resources will be adequate. Most NERC assessment areas’ reserve margins should be well above their reference levels, with only Manitoba and the Maritimes just barely under them.

NEPOOL Markets Committee Briefs: Sept. 8, 2020

The New England Power Pool Markets Committee began a three-day meeting Tuesday at which stakeholders will discuss updated parameters for Forward Capacity Auction 16 for 2025/26.

Before those discussions, members heard an update on ISO-NE’s next FERC Order 841 compliance filing and its proposal to sunset the Forward Reserve Market (FRM).

Order 841 Compliance Update

ISO-NE’s Jennifer Wolfson gave the committee a presentation on the RTO’s plans for responding to FERC’s Aug. 4 order on its second Order 841 compliance filing. (See FERC OKs Most of ISO-NE 2nd Storage Compliance.)

One set of changes responds to FERC’s concern that the RTO’s Tariff language preventing double payment for charging energy at the retail and wholesale levels could allow host utilities to decide whether an electric storage resource (ESR) may participate in its markets. The changes would be effective in the first quarter of 2021.

The other changes address FERC’s directive that ISO-NE add to its Tariff the mechanism by which it will account for state of charge and duration characteristics in the day-ahead energy market. The RTO will propose four day-ahead bidding parameters: initial state of charge; maximum state of charge; minimum state of charge; and round-trip efficiency. They would be effective Jan. 1, 2026.

The RTO also will propose several clean-up revisions to Appendix C of the Tariff.

ISO-NE has asked FERC to allow it to make the filing by Dec. 7. It is targeting a vote by the MC in November and will seek Participants Committee endorsement in December.

NEPOOL
Green Mountain Power’s Stafford Hill Solar Farm in Rutland, Vt., was the first in the region to use battery storage to reduce peak demand. | UVM

The commission’s August order also rejected language applying transmission charges to an ESR when that resource is charging for later resale in wholesale markets and is not providing a service, and to include a basic description of ISO-NE’s metering methodology and accounting practices for ESRs.

The commission also disagreed with the RTO’s contention that storage resources will always be providing a service when charging for later resale in the wholesale markets and should thus be exempt from transmission charges. It said ISO-NE should account for self-scheduled megawatts when calculating an ESR’s contribution to regional network load.

The RTO’s response on the transmission charge exemption will be discussed at the Transmission Committee and Participating Transmission Owners Administrative Committee.

Forward Reserve Market Sunset

The committee also heard a presentation on the RTO’s proposal to sunset the FRM on June 1, 2025, to avoid conflicts with its proposed Energy Security Improvements (ESI) initiative. (See “ISO-NE Seeks to Sunset Forward Reserve Market,” NEPOOL Markets Committee Briefs: Aug. 11-13, 2020.)

The FRM awards obligations for 10-minute non-spinning reserves and 30-minute operating reserves.

Transmission investments and market changes, including the anticipated implementation of ESI, have or will relieve many locational constraints and reward resource flexibility, the RTO says, making the FRM unnecessary.

ISO-NE plans an MC vote on the proposal in October, followed by a PC vote in November and a FERC filing by the end of the year.

The RTO’s Jonathan Lowell presented two versions of the proposed Tariff language because of uncertainty over when FERC will rule on the ESI proposal, which was filed in April. (See ISO-NE Sending 2 Energy Security Plans to FERC.)

One version would be filed if an order on ESI is received by the end of the year that accepts the parts of the initiative that would supplant the FRM — specifically, provisions regarding 10- and 30-minute reserves in the day-ahead market.

Another version includes “contingency language” in case FERC does not act by the end of the year.

If the commission issues an order before the end of the year but rejects the ESI reserves provisions, no sunset filing would be made until the RTO wins approval of a market design that includes day-ahead reserves.

Lowell responded to a stakeholder question about why the RTO wouldn’t sunset the FRM for FCA 15 to avoid an ESI/FRM overlap.

Lowell said bidders have already made decisions for FCA 15 based on the net cost of new entry and other parameters already set for the auction.

“Setting the FRM sunset to align with [capacity commitment period] 15 at this point in time is not a feasible course of action,” the RTO said.

Generation Information System Referral

The committee approved the referral to the NEPOOL Generation Information System (GIS) Operating Rules Working Group of requests to improve uploads by independent verifiers and enable application programming interface (API) access to the account holder public report. The GIS issues and tracks certificates for all generation and load produced in the ISO-NE control area as well as imports.

PowerDash, which provides software for the management and monitoring of alternative energy installations, asked the GIS Usability Group to address a problem with the uploads of “independent verifiers” — third-party meter readers.

Currently, if a facility that has not been assigned a “verifier” status is included in a comma-separated value (CSV) upload by a third-party meter reader, the entire upload fails. The proposed change would provide an error message indicating that the facility is not present in the account but would allow all other data to be uploaded. PowerDash said the change would reduce the need for manual crosschecks between the GIS account holders’ internal systems and the GIS.

The Usability Group also received a request from SRECTrade, which provides transaction and management services for solar renewable energy credits, to enable API access to the account holder public report. Currently, the API requires an account ID for each account to which the user is delivering certificates.

High Fire Danger Prompts First Oregon PSPS Event

Portland General Electric on Monday pre-emptively cut power to about 5,000 customers in high-risk fire areas near Mount Hood in the first public safety power shutoffs (PSPS) to affect Oregon residents.

The utility began cutting service on Monday evening to prevent its equipment from sparking wildfires along a heavily forested portion of U.S. Route 26, stretching from Alder Creek to the high-elevation town of Government Camp, southeast of Portland.

“The proactive safety outage is a last resort to help protect people, property and the environment in the fact of extreme fire danger conditions and high winds forecast for the area,” PGE said in a statement.

PGE said it expected the distribution outages to last from 24 to 48 hours, “subject to repair times for any damage that may occur.”

The shutoffs coincided with a small wildfire that burned about 2 acres near the Mount Hood Meadows ski area on the south side of the mountain, shutting down nearby hiking trails. The cause of that blaze, which occurred away from any power lines, was still under investigation.

Oregon PSPS Event

Mount Hood National Forest was shrouded in smoke Sept. 7 as high fire danger in the area prompted PGE to invoke Oregon’s first public safety power shutoffs. | © RTO Insider

On Monday, Mount Hood and its foothills were shrouded in a thick haze as high winds carried in smoke from larger fires burning to the east. With winds expected to gust as high as 65 mph, a red flag warning is in effect for the Mount Hood National Forest through Wednesday evening, indicating an increased danger of wildfire.

While PSPSes have become increasingly commonplace during California’s growing wildfire seasons, the practice is new to the Pacific Northwest.

“Even in historically wet, mild Oregon, summers are getting hotter and dryer with longer wildfire seasons, and the overall risk of wildfires is increasing,” PGE said.

The utility said it is taking other steps to prevent wildfires in its service territory, including increased vegetation management and inspection along its 12,000 miles of power lines and replacement and modification of equipment to reduce the risk of sparking fires.

PGE said it is also training crews in basic firefighting to learn “what to do if a fire ignites at their work scene” and “help prevent it from escalating to an even more dangerous situation.”

Portland-area Outages Top 100,000

Monday evening also saw more than 100,000 Portland-area customers of PGE and Pacific Power lose power as high winds with gusts as high as 55 mph snapped tree limbs and knocked down distribution lines throughout the region. An additional 15,000 PGE customers in Marion and Yamhill counties south of the metro area also lost service.

Even as PGE crews restored service to customers, the utility’s website showed outages continuing to climb throughout Monday night and into the early morning hours today.

The high winds are expected to persist throughout the region into midweek as a late-summer heat wave pushes temperatures into the mid-90s. Milder conditions are in the forecast for later in the week, according to the National Weather Service.

CAISO Avoids Blackouts amid Brutal Heat, Fires

In the face of another heat wave and raging wildfires, CAISO avoided rolling blackouts but declared Stage 2 emergencies on Saturday and Sunday after losing transmission and generating capacity without warning.

Sunday was “undoubtedly the most stressful grid day we had this year, maybe 10 years,” Vice President of Operations Eric Schmitt said in a media briefing Monday.

At midday Sunday, the ISO said it faced a 4,000-MW “mismatch” between supply and demand and could order rolling blackouts affecting millions of residents unless massive conservation efforts and aid from neighboring utilities allowed it to avert or limit outages.

If that had happened, it would have been the second time in less than a month that CAISO resorted to rotating outages to avoid jeopardizing the Western grid. The blackouts of Aug. 14-15, which affected more than 1 million customers, were the first time the ISO used its emergency powers in nearly 20 years. (See Theories Abound over California Blackouts Cause.)

A heat wave set record or near record temperatures across the West on Sunday, including 109 degrees Fahrenheit in downtown Los Angeles and 113 F in Las Vegas. Wildfires raging in Central and Southern California took transmission lines out of service, stranded hydroelectric and solar resources and fouled the air in major cities.

On Saturday evening, the ISO suddenly went from an energy warning to a Stage 2 emergency when fires near Fresno and in Southern California  interrupted power flowing from a hydroelectric plant in the Sierra Nevada foothills and solar arrays in the Imperial Valley, said John Phipps, director of real-time market operations.

The fires cut off 1,600 MW, forcing CAISO to an emergency status that allowed it to borrow 300 to 400 MW each from the Los Angeles Department of Water and Power (LADWP) and the Sacramento Municipal Utility District (SMUD). Blackouts were narrowly averted.

CAISO
Triple-digit heat across much of the West is straining CAISO’s system.

About 600 MW of the lost power returned Sunday, Phipps said, but in the middle of the briefing, he said he had just learned another 500 to 600 MW had been lost because of fire at a plant.

Sunday’s peak demand was projected to exceed 49 GW, by far the highest load of the year, but it ended up being slightly more than 47 GW, still a record high for 2020, Schmitt said. Neighboring states struggling with the heat didn’t have much electricity to spare, he said.

On Sunday, Schmitt warned that when California’s solar power waned in the evening while demand remained high, severe shortfalls would occur. “We still haven’t been able to find enough energy to make up that shortage,” he said.

During the mid-August heat wave, Nevada’s NV Energy strained to serve load, especially in the Las Vegas area, and issued emergency alerts.

On Friday, FERC granted PacifiCorp temporary authority to make short-term sales of electricity to NV Energy during emergency conditions at CAISO’s 15-minute market LMP at the Palo Verde price node (ER20-2816). The sales would otherwise be prohibited by PacifiCorp’s tariff.

“Due to credible information about possible reliability problems, we find that the exercise of our discretion to grant this waiver in part is warranted,” FERC said.

Events of Sept. 6

CAISO predicted problems to start around 5 p.m. Sunday and grow worse until as late as 10 p.m. There was a 4,000-MW difference between forecasted supply and demand at 1 p.m.

Unless circumstances changed, CAISO said it would likely declare a Stage 2 emergency between 4 and 5 p.m. and move to a Stage 3 emergency, commencing blackouts, around 5 p.m., Schmitt said. Outages could have affected 2.5 million to 3 million customers, or about 7.5 million to 9 million residents based on average household size.

The Stage 2 emergency was declared later than expected at 6 p.m., when a high-voltage DC line linking California to Oregon was suddenly derated by 1,100 MW and adjacent AC lines became overloaded, causing CAISO to lose 1,600 MW in minutes, Phipps said.

Then a 260-MW generating resource tripped offline. Having lost 1,900 MW, CAISO was “close to the edge,” Phipps said.

It called on large-scale consumers to honor their demand-response contracts and limit consumption, taking 960 MW of load off the system, he said. LADWP and SMUD again supplied additional power, while residents did their part to conserve, he said.

CAISO did not have to progress to a Stage 3 emergency.

The weather forecast called for a cooling trend starting Monday but also high winds that Pacific Gas and Electric and other investor-owned utilities warned could lead to public safety power shutoffs (PSPS) to prevent wildfires. CAISO said it did not expect the PSPS events to impact its system.

FERC Rejects NYISO Bid to Aid Public Policy Resources

FERC on Friday rejected NYISO’s proposal to make it easier for public policy resources to clear its capacity market, prompting a fiery dissent from Democrat Richard Glick, who warned the ruling “will ultimately doom NYISO’s current capacity market construct by forcing New York to choose between the commission’s constant meddling and the state’s commitment to addressing the existential threat posed by climate change.”

Chairman Neil Chatterjee and fellow Republicans James Danly and Bernard McNamee — in one of his final rulings before leaving the commission — joined in rejecting the proposal, which would allow public policy resources in New York City and capacity zones G-J to avoid buyer-side mitigation if enough existing capacity exits the market, or if demand increases enough to boost capacity requirements (ER20-1718-001).

The proposal was recommended by NYISO’s Independent Market Monitor and supported by majorities of all of the ISO’s stakeholder sectors. (See Five New Recommendations from NYISO Monitor.)

‘Similarly Situated’

But the commission majority said NYISO’s plan was “unduly discriminatory because it does not provide sufficient justification for prioritizing the evaluation of public policy resources before nonpublic policy resources, independent of cost.”

The ISO contended public policy resources — renewables, battery storage and other zero-emission resources — are not “similarly situated” to nonpublic policy resources because the latter are unlikely to be completed under New York’s aggressive emission-reduction goals.

But the commission said they should be treated the same because “they must adhere to similar requirements for interconnection and for participation in the” ISO’s Installed Capacity (ICAP) Market.

“Further, our finding that NYISO’s proposal is unduly discriminatory is dispositive,” the commission added. “We need not reach NYISO’s arguments that its proposal would not cause price suppression.”

James Denn, spokesman for the New York Public Service Commission, said the state will seek to overturn the ruling.

“Long standing FERC policy and precedent respected state’s rights. But this constitutionally protected idea apparently means nothing to this administration.  If allowed to stand, this decision would cause tremendous economic and environmental harm across the country by intentionally increasing energy prices for consumers to line the pockets of fossil fuel interests, and undermining successful renewable energy policies that have created hundreds of thousands of jobs.”

“We worked closely with market participants on a design we felt addressed FERC’s jurisdictional obligations and New York’s right to implement renewable energy policies,” said NYISO CEO Rich Dewey. “We’re reviewing the order to assess next steps and remain confident we can find a regulatory solution acceptable to all parties that supports the changing grid.”

The ISO’s buyer-side market power mitigation rules require new ICAP resources in New York City and zones G-J to offer at or above the default offer floor — 75% of the net cost of new entry (CONE) of the hypothetical unit modeled in the most recent ICAP demand curve reset — until they clear 12 monthly auctions.

To win an exemption from mitigation, a new entrant must pass one of two exemption tests. Part A allows exemptions if the forecast of capacity prices in the first year of a new entrant’s operation is higher than the default offer floor. Part B permits exemptions if the forecast of capacity prices in the first three years of a new entrant’s operation is higher than the net CONE of the new entrant.

4 Changes

NYISO proposed four changes to its rules, saying they would “better reflect changes in resource investment and retirement decisions and, ultimately, the composition of the overall resource mix that are expected to take place in New York state.”

The changes would:

  • modify the ISO’s current practice of performing the Part B test before the Part A test by swapping their order;
  • establish two separate mitigation study periods (Group 1 and Group 2), each covering three consecutive years;
  • evaluate resources under the Part A test for each capability year of a resource’s three-year mitigation study period; and
  • put public policy resources ahead of nonpublic policy resources in Part A evaluations.

The commission said the proposal “would unjustifiably limit nonpublic policy [resources’] ability to pass the Part A test and participate on an equal footing with public policy resources.”

The ISO contended public policy resources are more likely to secure the necessary permits and siting permissions, secure firm off-takers and receive favorable financing, and that nonpublic policy resources are unlikely to enter the market in the future.

It cited the Climate Leadership and Community Protection Act, which calls for 70% of New York’s electricity to come from renewable resources by 2030 and for electricity generation to be 100% carbon-free by 2040. It also nearly quadrupled New York’s offshore wind energy target to 9 GW by 2035.

It also cited the Accelerated Renewable Energy Growth and Community Benefit Act, which established an office to accelerate the permitting of large renewable energy facilities. (See Cuomo Proposes Streamlining NY’s Renewable Siting.)

Because of these policies, NYISO said a resource’s cost structure is no longer the best predictor of whether it will ultimately get built. Because its proposal will not change how much capacity qualifies under the Part A test, it will not result in price suppression, the ISO said.

“While NYISO’s filing makes references to certain New York state laws, regulations and policies that it argues will drive the composition of New York state’s resource mix, we disagree that the prevalence of public policy resources in the future composition of New York state’s resource mix means they are not similarly situated to nonpublic policy resources for the purposes of the Part A test,” the commission said.

It also said it was not persuaded by the Monitor’s contention that the proposed realignment will minimize surpluses and avoid inefficient incentives for investment in new resources. States “are free to make their own decisions regarding how to satisfy their capacity needs, but they ‘will appropriately bear the costs of [those] decision[s],’ … including possibly having to pay twice for capacity,” the commission wrote, quoting from a 2009 D.C. Circuit Court of Appeals ruling.

“While we respect that New York state may have initiatives to favor the development of certain types of resources, we reiterate that we must base our decision on our duty to ensure just and reasonable rates pursuant to the [Federal Power Act], and not on whether the proposal is consistent with federal, state or municipal renewable energy policies.”

Glick Dissents

Glick said the majority’s “deeply misguided” ruling “is just the latest in the commission’s ever-growing compendium of attempts to block the effects of state resource decision-making,” an apparent reference to its December ruling requiring PJM to expand its minimum offer price rule to include all new state-subsidized resources.

“This time the commission does not even bother trying to hide behind ‘price suppression,’ ‘investor confidence,’ ‘market integrity,’ ‘the premise of capacity markets’ or any of the other inscrutable buzz words that it has used to justify its efforts to ‘nullify’ state policymaking,” Glick said. “Without disputing NYISO’s explanation that these reforms would not cause any ‘price suppression,’ the commission nevertheless rejects the filing because it would expressly facilitate the entry of resources needed to meet New York’s public policy goals.”

Glick termed the ISO’s proposal “a set of minor but eminently reasonable changes” to ensure that the Part A exemption test reflects the commercial and regulatory realities under state policies. The majority’s order used “perfunctory reasoning that displays not even the slightest effort to wrestle with, or even correctly characterize, the arguments advanced by NYISO or the other supporting parties.”

He said the fact that the public policy resources are subject to the same market and interconnection rules as nonpublic policy resources is “irrelevant.”

“The commission has repeatedly recognized that state support may constitute a distinguishing factor that renders resources not similarly situated. For example, in its order accepting ISO New England’s Competitive Auctions with Sponsored Policy Resources construct, the commission approved of an entire new market — the substitution auction — that was open only to state-sponsored resources,” he said.

The order “appears to stake out the new, and even more radical, position that it is improper for an RTO to design its Tariff in a way that even acknowledges, much less accommodates, state public policies — an approach that is both fundamentally misguided and a striking departure from commission precedent and practice,” Glick said.

The majority “puts RTOs and ISOs in an impossible position, forcing them to juggle the commission’s ideological antipathy toward state efforts to shape the resource mix with the realities that Congress gave states responsibility over resource decision-making and that the physical system will ultimately, and rightfully, reflect those state choices. …

“The proposal received a supermajority of votes in the stakeholder process, and not a single party protested this issue before the commission, including any of the generator groups that have cheered on the commission’s slew of recent buyer-side mitigation orders. But, of course, the commission thinks it knows better than NYISO’s stakeholders, better than NYISO’s Market Monitoring Unit, better than the New York state Public Service Commission and better than the people of New York. …

“The most likely outcome of the commission’s misguided campaign to ‘protect’ capacity markets is their ultimate dissolution. Today’s order makes that result all the more likely. New York is currently considering whether to ‘take back’ resource adequacy from NYISO, a move motivated in large part by the commission’s efforts to prevent the NYISO market from reflecting the state’s policy choices. The evident hostility toward state policies displayed in this order will only add fuel to that fire.”

Reaction

“This decision is a stunning example of overreach from Washington, further proof that FERC-regulated wholesale capacity markets are fundamentally flawed. The FERC majority is once again demonstrating hostility to the legally established authority of states to determine how best to provide power to their citizens,” said Chris Casey, a senior attorney with the Natural Resources Defense Council.

“Like other states put in the same bind by FERC’s power grab, New York officials and the grid operator should work together to develop a state-controlled capacity market that serves the public interest while ensuring that New York can meet its clean energy goals.”

Overheard at NECEC Back to Work Webinar

The COVID-19 pandemic has roiled the clean energy industry and caused the loss of more than 600,000 related jobs nationwide, and the economic slowdown has also exacerbated social and environmental inequities.

NECEC
Jeremy McDiarmid, NECEC | NECEC

The Northeast Clean Energy Council (NECEC) on Wednesday held the first in a series of webinars — called the Clean Energy Back to Work Challenge — which brought together a public official, an environmental advocate and a solar developer to explore how energy infrastructure and policy affect environmental justice and social welfare.

“As we know, clean energy is a key element to the economic recovery and the way out of the recession and economic challenges posed by COVID-19,” said Jeremy McDiarmid, vice president of policy and government affairs at NECEC. “We need to make sure that the recovery is just and equitable, and that traditionally disadvantaged populations are getting access to the benefits of clean energy while avoiding the environmental harms associated with fossil generation and pollution.”

Following is some of what we heard at the event.

Broad Goals, Public Policy

Kathy Kelly, Daymark Energy Advisors | NECEC

The clean energy industry now faces three key issues: the environmental justice question, social welfare needs and the intersection of those with public policy on new energy infrastructure, said Kathy Kelly, vice president of operations at Daymark Energy Advisors.

“We have very broad energy goals as a country around decarbonization and the adoption of clean energy and how that fits into our long-term plans,” Kelly said. “We need to make sure that as we do that, unlike the past, that all sectors of our society have access to clean energy and are treated equally as we implement the clean energy infrastructure.”

The disadvantages from energy development in the past hit poor people worst, which has lessons for overcoming the challenges of today, she said. For example, the housing stock in low-income areas is unable to accommodate renewable energy improvements, whether because of outdated wiring inside, or roofs unable to support solar panels.

NECEC
John Odell, Worcester | NECEC

It’s important not to repeat the mistakes of the past, said John Odell, director of energy and asset management for the city of Worcester, Mass.

Certain parts of the community bear more of the burden than others, which is why the city is developing a Green Worcester Plan to serve as a roadmap, he said.

“We want to get as much clean energy out there, remove as much waste from the waste stream, make sure our natural systems are enhanced as best we can and to do as much of that as fast as we can,” Odell said. “It’s often easier to do those things in areas that don’t have the disadvantages, so that’s where the issues of social equity come to the forefront. It’s easier to build on your strengths than it is to correct your weaknesses.”

Environmental Justice and Social Welfare

NECEC
Eugenia Gibbons, HCWH | NECEC

Health care accounts for more than 10% of greenhouse gas emissions nationally, but the sector also represents about 18% of GDP and is the largest employer in Massachusetts, said Eugenia Gibbons, Boston director of climate policy for Health Care Without Harm (HCWH), an international nonprofit organization with a network of more than 1,200 hospitals in the U.S.

“We employ about 500,000 people in the state and the sector also holds a significant amount of real estate across the commonwealth,” Gibbons said. “So when hospitals and hospital systems begin to implement climate strategies and try to address climate change in their own systems it’s actually having a huge impact on the surrounding communities and on the state as a whole.”

The pandemic has reinforced the link between air quality and poor health outcomes, which is now undeniable, she said. Low-income communities and communities of color have been proven more susceptible both to the virus and to the effects of climate change and air pollution.

“They have been ravaged by COVID,” Gibbons said. “We have to move away from the impulse to think about climate action as strictly an exercise in reducing GHG emissions, and really try to anchor the work in the communities and anchor the work around people.”

86-kW solar installation financed by Sunwealth at the Provincetown, Mass., Water Treatment Plant | Sunwealth

The pandemic has caused many disruptions to supply chains, and a combination of the coronavirus and recent protests against racial injustice across the U.S. has “forced a lot of organizations and businesses to have a come-to-Jesus moment and say, ‘We’re either prioritizing this or we’re not,’ and a lot of people are making those commitments,” Gibbons said. “It’s up to everyone to see that they follow through.”

Jon Abe, Sunwealth | NECEC

Solar development, finance and construction is “pretty resilient,” said Jon Abe, CEO of solar finance firm Sunwealth, which backs small- and medium-size projects, especially in lower-income communities.

Early on in the pandemic, in many states, solar was deemed an essential service, so while it was complicated, it was relatively easy compared to other businesses to implement the appropriate safety measures at job sites, he said. Sunwealth has almost a dozen developers and installers in the field employing more than 100 electricians and installers at various sites across the U.S.

Sunwealth has been lobbying on low-income community solar inclusion in Massachusetts, where neither the administration nor the legislature has done enough, Abe said.