FERC last week ordered RTOs and ISOs to file reports detailing their current practices and planned changes on five price formation issues, saying it needed more information before taking substantive action.
In September, the commission issued a Notice of Proposed Rulemaking that would require RTOs and ISOs to align their settlement and dispatch intervals, saying it was the first of a number of proposals on which the commission plans to act. (See NOPR Requires RTOs Switch to 5-Minute Settlements.)
FERC said last week that the RTO/ISO reports, due in 75 days, will help it identify best practices and inform its future actions. It asked for information on:
pricing of fast-start resources;
commitments to manage multiple contingencies;
look-ahead modeling;
uplift allocation; and
transparency.
“Identifying best practices for these five areas should provide incentives to maintain reliability, to facilitate accurate and transparent pricing, to reduce uplift, and for market participants to operate consistent with dispatch signals,” the commission wrote. “We have selected these areas because the discussion at the price formation workshops and the comments received after the workshops suggest that a number of RTOs and ISOs have sufficient experience with these areas such that we may be able to discern best practices and understand unintended consequences.
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“The commission seeks this information not only to answer technical questions regarding how each RTO/ISO addresses these topics, but also to understand the reasons why each RTO/ISO has made its set of policy choices,” it added.
Commissioner Cheryl LaFleur said the issue is one of the commission’s most important initiatives, particularly because of the shift from coal to lower carbon resources. “I know there’s been a lot of anticipation and even impatience for action in this area,” she said. “This is the second in a series of orders; I don’t believe it will be the last.”
Commissioner Tony Clark said the energy markets “are our best performing and most mature markets.”
“So it seems to me that this is an appropriate manner in which to deal with this … so that we take it one bite at a time and we don’t have secondary unintended effects [that might occur] if we were to act all at once.”
Commissioner Colette Honorable noted that some have complained that work on price formation issues has “stalled” in RTO stakeholder processes.
“While we are working, I want to gently ask that [stakeholders] continue working, too, and that if you identify market flaws and other issues that need to be addressed, please continue to demonstrate your leadership.”
FERC last week accepted a compliance filing by NYISO regarding its revised compensation methodology governing the provision of frequency regulation service under Order 755. “We believe that NYISO has demonstrated that its interim market power mitigation measures have successfully limited opportunities for firms to benefit from bidding regulation movement above marginal costs, and therefore meet the requirements of Order No. 755,” FERC wrote (ER12-1653).
Tennessee Gas Pipeline on Friday filed an application with FERC for a certificate of public convenience and necessity for the Northeast Energy Direct pipeline (CP16-21).
Tennessee Gas, a unit of Kinder Morgan, is seeking FERC approval in the fourth quarter of 2016, with construction starting in January 2017 and an in-service date of Nov. 1, 2018. The company estimates the project will cost $5.2 billion.
“Adding the NED project capacity to transport incremental natural gas supplies will ease natural gas capacity constraints and is expected to provide significant benefits to energy consumers in the region in the form of lower natural gas and electricity prices,” the application says.
The project consists of two components that will transport natural gas from the Marcellus shale gas region of Pennsylvania to New England.
The supply path component is a 174-mile segment from Bradford County in northern Pennsylvania to an existing compressor in Wright, N.Y. The segment can transport 1.23 million dekatherms per day, of which Tennessee Gas says it has long-term contracts for 552,262 dekatherms per day.
The market path component continues from Wright for 188 miles through New York and Massachusetts, turning slightly north into New Hampshire and then moving south to its end in Dracut, Mass. This route has a capacity of 1.3 million dekatherms per day, with contracts for 751,650 dekatherms per day.
The staff of the New Hampshire Public Utilities Commission has released a report that said Northeast Energy Direct is its preferred project of several proposed natural gas pipelines to ease supply constraints. (See NH PUC Staff: Northeast Energy Direct Pipeline Would Lower Power Prices.)
SPP has responded to stakeholder feedback by making several tweaks to its redesigned website.
Many of the improvements were to the site’s search function, which now returns results sorted with the most recently posted documents first and includes the ability to filter results by file type.
After logging in to their profiles on the site, users are now returned to the page they were previously viewing, rather than being taken to their profile page. Changes have also been made to simplify registration for meetings and other events.
Calendar (ICS) files sent to users after meeting registrations now include hotel information and have been reformatted to display all information in a more readable manner.
The RTO said its website project team is already at work on another set of improvements, to come in the next several weeks.
ECC, Gas-Day Testing to Begin with ‘Big Bang’
SPP staff told stakeholders last week to expect a “big bang” testing approach — an apparent reference to the complexity and breadth of the systems involved — next summer and fall as it continues to develop the markets system’s enhanced combined-cycle (ECC) software. (See “Enhanced Combined-Cycle Project Moves Forward” in SPP Board of Directors/Members Committee Briefs.)
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The ECC project, intended to provide more sophisticated modeling that captures combined-cycle plants’ flexibility, is being conducted in conjunction with improving gas market-clearing logic. SPP anticipates market participants will be able to begin gas-day testing in August and ECC testing in December.
The testing will involve more than a dozen systems or interfaces, four different vendors and seven SPP departments. At least two other system revisions will be released in addition to the ECC/gas-day releases.
Staff told SPP’s Change Working Group — which is responsible for implementing changes affecting markets and members — said it would deliver quarterly releases of the markets systems through 2016, making incremental improvements to the ECC functionality. One project manager said the team will have to see how downstream systems are affected as it gathers upstream system requirements.
Adding to the project’s complexity is the market-clearing engine, or, as SPP’s Jim Gonzalez said, “The actual calculator.” The ECC logic is so complex, Gonzalez said, the clearing engine has to run 20 times to produce a good solution.
MISO’s Steering Committee put its own operations under inspection during a Nov. 19 meeting, when it addressed stakeholder concerns that meeting materials are being posted too late.
Michelle Bloodworth, MISO’s executive director of external and stakeholder affairs, said meeting and agenda materials should be posted at least a week before the meeting under governance guidelines.
“We have not forgotten this and we’re taking a lot of strides internally,” Bloodworth said, adding that MISO is looking at different options on how to notify stakeholders when materials are posted.
MISO management will address the committee’s concerns on posting and discuss verbal updates versus updates accompanied by posted materials at an informational forum Dec. 15.
The Steering Committee went over a tentative schedule of monthly 2016 meetings. In light of the impending stakeholder redesign, the committee is embracing a “business as usual” policy through March until a more defined plan emerges from the stakeholder redesign committee. (See MISO Board Reduces Meeting Schedule; AC Likely to Follow.)
Also during the meeting, the closed Operations Working Group and the closed Operations Planning Working Group were merged by vote into the temporarily named Confidential Reliability Working Group. The Steering Committee also gave the go-ahead on a draft charter and management plan for the newly merged entity. The group’s purpose is to “provide a forum to promote the reliability of the Bulk Electric System and to develop, review and recommend operational planning practices,” according to the draft management plan.
Kent Feliks, chair of the Market Subcommittee, asked the Steering Committee for ideas on how the subcommittee should address projects that are withdrawn from MISO’s market roadmaps. Currently, there’s no procedure in place for projects that drop out of the 2017-2019 Market Roadmap. Feliks said a possible procedure and improvements to MISO Market Roadmap process will be discussed at the Dec. 1 Market Subcommittee meeting.
MISO Tops Wind Record, Reports Low October Energy Prices
Todd Ramey, vice president of system operations and market services, told an informational forum last week that the RTO set a new wind generation record Oct. 28, with instantaneous output of 12.4 GW, breaking the previous record of 11.9 GW, set Jan. 8. Wind produced 4.1 TWh for the month, up from 2.9 TWh in September and 3.6 TWh in October 2014.
Meanwhile, at a MISO informational forum held Nov. 18, the RTO reported relatively low wholesale energy prices for the month of October, owing to inexpensive fuel prices, strong wind farm output and slightly higher temperatures above historic October averages.
According to a MISO presentation, load peaked at 84.6 GW on Oct. 8, significantly less than September’s peak of 113.9 GW. Average load for the month was 68.6 GW, down 2.4% from October 2014.
LMPs averaged $25.34/MWh in October, down from $26.80/MWh in September and $32.44/MWh in October 2014.
MISO Launches ‘Jargon-Free’ Blog
MISO last week introduced a blog, MISO Matters, an effort to increase understanding of RTO operations by simplifying technical topics. The first entry features breakdowns of peak load, automatic reserve sharing and the MISO Transmission Expansion Plan.
“We will feature what MISO is doing around big topics, like [the Clean Power Plan] and transmission planning, but also try and explain some of the day-to-day business operations,” MISO spokesman Andy Schonert said. “Most of all, the goal of the blog is to tell MISO’s story free of jargon and acronyms, and explain what MISO does on a daily basis.”
FERC on Friday accepted SPP’s request to waive Tariff provisions governing the selection of an industry expert panel, allowing it to use one of its 2016 panelists to complete the 2015 panel evaluating proposals for the RTO’s first competitive solicitation under Order 1000 (ER16-126).
SPP filed the waiver request with FERC on Oct. 20, saying that the only candidate in its 2015 pool with expertise in one of five subject areas required wouldn’t be able to serve. (See SPP Seeks Waiver on Panel; Sets New Wind Records.)
FERC found “good cause” to grant SPP’s requested waiver, saying it “will remedy a concrete problem and allow for regulatory certainty regarding review of the proposals submitted for the project.”
FERC noted the waiver requested was of limited scope, covering just two subsections of SPP’s Tariff and it addressed a one-time event. The commission said the request “will create no undesirable consequences since the candidate’s qualifications will be reviewed and approved by both the Oversight Committee and the SPP Board of Directors prior to serving on the IEP.”
MISO’s Planning Advisory Committee continued discussion Wednesday on a revised planning futures process that will help the RTO develop transmission needed to comply with the Clean Power Plan.
Durgesh Manjure, MISO’s manager of resource adequacy coordination, said the final CPP plan will be incorporated into the MISO Transmission Expansion Plan beginning with the 2017 cycle. The MTEP 16 futures are based on the draft rule, which was changed significantly.
“Futures for the next few MTEP cycles are expected be driven largely by the CPP. Work done for MTEP 17 should allow for more efficient development of MTEP 18-plus futures,” MISO wrote in a presentation.
MISO “believe[s] it’s appropriate to bring in the Clean Power Plan to the MTEP 17 cycle,” even though implementation itself isn’t slated to begin until 2022, Manjure said. States are required to submit a compliance plan or an extension request in September 2016 with final plans due in September 2018.
While MISO said incorporating the CPP final rule into MTEP16 “could be beneficial,” there are ultimately no plans to revise MTEP16 futures to reflect the final rule.
Stakeholders have said that drivers used for MTEP futures should not be limited by existing policies and include policies on the horizon. They also asked that MISO share historical and forecast data on key variables before workshops take place.
Transmission-owning stakeholders requested that MISO review its resource siting process. The RTO said siting is to be reviewed in the coming year.
“It’s a journey of discovery,” Manjure said, quoting MISO executive vice president of transmission and technology Clair Moeller’s stance on CPP preparation. “By no means are we jumping the gun on MTEP 17. This is a precursor to the conversation,” he added.
Under the realigned MTEP futures development, MISO will share relevant historical and forecast data at the beginning of an MTEP cycle, then check if the existing futures sufficiently capture the economic and policy landscape for long-term transmission planning, reusing them if appropriate. The RTO will also actively look for any new sensitivity scenarios and plan to reuse resource expansion and siting in successive PROMOD models. PROMOD models themselves will be updated annually to represent the latest topology in MISO’s footprint.
“The timeline and overall process definitely warrants a look,” Manjure summed up.
Manjure said the revised planning futures process will be subject to “ongoing discussions” at upcoming PAC meetings; no voting date has been set.
Proposed Changes to Expedited Project Review Fall Short, Stakeholders Say
The PAC continued its review of MISO’s proposed changes to the out-of-cycle review process, with some stakeholders complaining that the changes don’t address their concerns that expedited projects could undercut competition under FERC Order 1000.
The RTO is drafting changes to its business practices in response to the uproar earlier this year over Entergy’s $200 million out-of-cycle project in Louisiana.
MISO defended its proposal to eliminate detailed criteria defining expedited projects, saying it did so because the RTO does not have the authority to challenge load-serving entities’ load assumptions or regulatory drivers. MISO said it would consider adding more detailed criteria “provided that those bounds do not require MISO to challenge the obligations of the LSE or [transmission owner].”
“We really believe that the best mechanism to address these types of issues is transparency,” said Matthew Tackett, a MISO principal advisor.
MISO also said the PAC does not have the authority to order planning staff to report to MISO’s Board of Directors on expedited projects. MISO staff reports to the board at its own discretion.
“Of course we will consider [recommending] these projects if there’s an appropriate need and if the timing is appropriate,” Tackett said.
Stakeholders argued that under the proposed changes, MISO and the PAC can do little to prevent TOs and LSEs from inflating their load demands and proposing an expedited project under false pretenses. One PAC member said it would be “troubling” if MISO chooses to interpret the Tariff language narrowly and ignore stakeholder concerns.
Another said the revision process had become “a very frustrating exercise” because redline suggestions to the manual language have not been accepted by MISO.
Discussion on the process will wrap up at December’s PAC meeting, when the committee will be asked to approve the changes.
Queue Remodel Moves to Final PAC Review; Stakeholders Request Transition Plan
MISO expects to draft final Tariff language for its interconnection queue reform effort in the coming month.
The proposed changes, which include the introduction of phases and related fees along with a reduction of restudies, drew criticism from stakeholders at last week’s PAC meeting. Stakeholders representing wind power developers were particularly critical of the plan, saying it could increase their costs to $25,000/MW for projects that may not come to fruition.
The last revision of queue rules was completed in 2012.
“We have made changes over the past, but they’re not going as well as we envisioned, so this is our chance to go back and fix it,” Vikram Godbole, senior manager of MISO’s generator interconnection planning group, told the committee.
Under current rules, Godbole said, customers may leave their interconnection projects in the existing queue even if they don’t wish to proceed. He also said the current queue process takes too much time and doesn’t lend enough certainty to interconnection customers due to the volume of restudies.
“What we’re going to do is restructure the restudies and minimize the number of restudies allowed,” he said.
The new rules would eliminate restudies after interconnection customers execute a permanent generator interconnection agreement.
The new rules set new deadlines for receiving refunds of milestone payments.
Godbole said interconnection customers proposing a project will receive a detailed study from MISO in the first 110 days of the process. After reviewing the study, the requesting owner can decide whether to seek a refund of the $5,000/MW milestone paid at the queue application. Before executing a generator interconnection agreement, customers must pay two more milestones during phases that last 80 and 135 days, respectively.
No refunds will be permitted for interconnection customers that do not withdraw their projects before the third, 135-day phase begins.
Godbole encouraged stakeholders to view the proposed milestone payments as “deposits.”
Several stakeholders asked for more time to consider the changes, saying at just four months the process felt “rushed.” Godbole responded that MISO has incorporated three cycles of comments thus far on the proposed changes.
Some stakeholders requested a clearer transition to the new rules.
“We’ve heard it crystal clear that stakeholders want a transition plan by the time we file with FERC,” Godbole said. He asked stakeholders to provide “actionable items” that MISO can incorporate into the plan.
MISO asked for PAC’s feedback on the changes by Nov. 25 in order to present final Tariff language to the committee on Dec. 16.
PJM expects 177,628 MW of generation this winter, a 35% margin over the projected peak demand of 131,720 MW, the RTO said Thursday.
The peak load for the 2014-15 season was a record 143,295 MW, set in February. Temperatures are forecasted to be milder this year.
Generator outage rates, which exceeded 20% in 2014, were generally less than 15% in 2015.
While last winter saw colder temperatures than the previous year, when the region was hit by a polar vortex, the RTO experienced fewer generator outages — rarely exceeding a 15% outage rate compared with rates as high as 22% in January 2014.
“PJM has taken many steps to reinforce generator readiness and to continue to improve coordination with natural gas pipelines, a key source for a large portion of the generation fleet,” said Michael Kormos, executive vice president and chief operations officer for PJM.
In preparing for the winter, PJM offered testing to generating units that had not run in the eight weeks prior to Nov. 1, repeating a program begun last year, and had generators complete a survey assessing their fuel supplies.
About 10,000 MW of generation have retired since last winter, only about 3,000 MW of which has been replaced, Kormos told FERC in September. (See PJM to FERC: We’re Prepared for Winter.)
PJM should tighten rules on demand response and market power, the Independent Market Monitor said in its third-quarter State of the Market Report.
The report, which included eight new recommendations, concluded that the RTO’s energy, capacity and regulation markets were competitive for the first nine months of the year.
“The markets are working pretty well,” Monitor Joe Bowring said in an interview. But, he said, “there is still progress to be made in some of the details of the capacity market rules, and we’re concerned about some of the proposed changes to market rules, particularly the hourly offer flexibility.”
The study, released Thursday, found that energy market prices dropped by one-third compared with the same period last year, due to lower fuel prices and decreased demand. The load-weighted average real-time locational marginal price was $38.94/MWh compared with $58.60/MWh in 2014.
Uplift decreased 68% in the first nine months over a year ago, from $899.1 million to $285.7 million, but Bowring said the charges remain high, in large part because of inflexible unit parameters based on rigid gas supply arrangements.
The report said that the Capacity Performance rules will address those problems in the future.
“Outages were high, performance incentives remain weak and there is no resolution of the disconnect between the incentives facing electric generating units and the incentives facing gas pipelines, which is a barrier to the construction of new pipeline capacity,” the Monitor said.
Bowring noted his particular concern over the ability of generators to place hourly instead of daily offers.
“The PJM market design incorporates a variety of rules designed to help ensure competitive outcomes,” the report said. “When basic elements of those rules are modified, e.g. the raising of the overall $1,000/MWh offer cap and the introduction of hourly offers in place of daily offers, it is essential that effective market power mitigation be maintained.
“A direct and effective substitute for the current market power mitigation rule limiting units to one offer per day would be to limit any hourly offer changes during the day to changes in the cost of fuel. The failure to maintain limits on aggregate market power will lead to the exercise of market power and the associated negative impacts on the competitiveness of PJM markets.”
The report also found that net revenue for new entrants was down for the first nine months, decreasing 13% for a combustion turbine, 18% for a combined-cycle, 53% for a nuclear plant, 20% for wind and 5% for solar.
Congestion charges dropped by 33% from $1.7 million for the first nine months of 2014 to $1.1 million this year.
The report included eight new recommendations, three listed as high priority. One concerns the energy market and two address demand response, provided that DR remains in the wholesale market following the Supreme Court’s ruling in the Electric Power Supply Association challenge. (See FERC Jurisdiction over DR in Peril as Supreme Court Splits.)
The rules around the three pivotal supplier test should be clarified and documented. In addition, markup should be constant across price and cost offers; there should be at least one cost-based offer using the same fuel as the available price-based offer; and the parameters of the cost-based offer should be at least as flexible as the parameters of the available price-based offer.
PJM should require nodal dispatch of demand resources with no advance notice required. Alternately, if nodal location is not required, subzonal dispatch of DR with no advance notice should be mandatory.
PJM should eliminate the measurement of DR compliance across zones within a compliance aggregation area. “The multiple zone approach is less locational than the zonal and subzonal approach and creates larger mismatches between the locational need for the resources and the actual response.”
The remaining recommendations were of medium and low priority and regarded uplift and planning, respectively.
PJM spokesman Ray Dotter had no specific comment on the recommendations, saying only that many “appear consistent with the themes of prior State of the Market reports.”
“PJM looks forward to working with the Independent Market Monitor to flesh out these new recommendations to ensure a complete understanding and to determine how they may be addressed, including through potential introduction into the stakeholder process,” he said.
The development of carbon capture and storage technology will be vital to address climate concerns, but it will require government support to make it happen, according to a report by the National Coal Council.
The report was drawn up at the request of Energy Secretary Ernest Moniz, who wanted recommendations on what can be done to encourage development and use of carbon-capture technology and how to level the playing field.
The council’s report said the Clean Power Plan rules have “severely tilted the energy playing field,” and that the incentives available for carbon capture and storage are too small to encourage commercial use. “Without commercial-scale deployment, developers have no history to understand technical risks, frequency and duration of down time, and other critical factors that become known only with operation,” the report said.
The Department of Agriculture is providing nearly $2.3 billion in low-interest loans to rural electric cooperatives for infrastructure improvements.
The loans, provided through the Rural Utilities Service Electric Loan Program, will go to 77 cooperatives and smaller utilities in 31 states. USDA said the loans will help build or improve about 12,000 miles of transmission and distribution lines. They will also finance $108 million for smart grid technology improvements, $41 million for renewable energy programs and $9 million for storm damage restoration.
A U.S. District Court judge ruled that Environmental Protection Agency Administrator Gina McCarthy must testify in a case pitting Murray Energy against the agency’s Clean Air Act regulations.
The coal producer’s attorneys argued that McCarthy was deeply involved in drafting the regulations, and Murray should be able to depose her about her analyses concerning possible loss of jobs caused by the regulations. EPA and the White House sought to block her appearance, saying the regulations are clear enough on their own and that McCarthy’s testimony is unnecessary.
Judge John Preston Baily of the District Court for the Northern District of West Virginia ruled that McCarthy’s testimony is material. “By statute, the administrator is responsible for conducting the evaluations in question,” Bailey wrote in his order, adding that “she has personally been involved with discussions about” the regulations.
FERC Sets Tech Conference for ‘Connected Entities’ Rule
FERC has agreed to set up a technical conference to explore its proposed rule that would require ways to identify companies and individuals participating in wholesale energy market trades.
Several parties asked FERC for clarity about its Notice of Proposed Rulemaking issued in September that would require RTOs and ISOs to begin registering market participants through common alpha-numeric identifiers, including lists of their “connected entities” and a description of their relationships (RM15-23). The proposal would use a new system called Legal Entity Identifiers, which are already used by the Commodity Futures Trading Commission and Securities and Exchange Commission to track swaps trades. (See Are You Two Related? FERC Wants to Know.)
Several parties asked for either an extension of the Dec. 8 deadline for comments on the notice or a technical conference to clear up what they called “ambiguities.” FERC scheduled the conference for Dec. 8 and extended the comments deadline to Jan. 22.
Solar energy advocates and some legislators are warning that the upcoming reduction in the Investment Tax Credit for solar will impact customers and small businesses in the Midwest, where few state-level solar programs are in place to provide incentives in addition to the federal subsidies.
Ray Davis, president of OGW Energy Resources, an Ohio-based solar developer, said it is difficult for solar to compete without the subsidies. “As we are primarily a coal region, our grid kilowatt-hour costs are relatively low as compared to other regions,” he said. “Therefore the ITC truly is the part of the puzzle that makes solar fiscally feasible in the Midwest.”
Legislation extending the credit for wind and other renewables only — but not solar — was passed by the Senate Finance Committee earlier this year. Without an extension, the commercial tax break will decrease from 30% to 10% at the end of 2016, and residential support will be eliminated.
Despite the retirement of 23 GW of coal-burning capacity this year, American power plants will burn the same amount of coal next year. Surviving coal plants will ramp up to meet demand and burn about 773 million tons of coal in 2016, according to the Energy Information Administration.
In addition to increasing generation to fill the void left by plant closures, coal is also expected to compete strongly next year as natural gas steadily becomes more expensive, EIA said. Coal prices are expected to remain fairly steady.
“You’ve got this big wave of retirements that you don’t get for the rest of the decade,” said James Stevenson, director of North American Coal at IHS Inc. in Houston. “That means after this, coal demand is pretty stable.”
Obama’s Keystone Decision Elicits Yawn from 35% of US
Although the Keystone XL issue has dominated the news media, only about a third of Americans care one way or the other about President Obama’s rejection of the pipeline that would have delivered heavy crude oil from Canada to the Gulf Coast, according to a Reuters poll.
About 35% of 920 people polled said they didn’t agree or disagree with the president’s decision. Another 27% qualified their opinions with “somewhat.” Obama rejected the proposed 1,200-mile pipeline on Nov. 6.
Wellinghoff: Pipeline Purchases May not be Wise for Utilities
John Wellinghoff
While Eversource Energy, Duke Energy and Dominion Resources are betting big on natural gas pipelines, the volatility of the gas market in light of growing renewable and battery market power could leave those investments stranded, according to former FERC Chairman Jon Wellinghoff.
Wellinghoff told Bloomberg Business that spending billions on natural gas pipelines may look like good sense when coal plants are closing and natural gas-fired plants are sprouting. But he noted that renewable energy is growing, and battery storage technology is emerging quickly.
“These utilities are taking a risk that these will be stranded assets that ultimately their shareholders will have to pay off,” Wellinghoff said. “We will see regulators being more critical of these asset decisions as prices of renewables continue to go down.”
Report: EVs Emit less Pollution over Life Cycle and Getting Cleaner
Electric vehicles generate half the emissions of gasoline-powered cars over their lifetimes, even when pollution from battery manufacturing is accounted for, according to a new study by the Union of Concerned Scientists.
The study looked at the greenhouse emissions of conventional and electric vehicles during manufacturing, operation and end of life.
While electric cars generally exceed the global warming emissions of gasoline cars in production because of their use of large lithium-ion batteries, they make up for that within 18 months of driving, according to the report.
A series of unplanned shutdowns at the Tennessee Valley Authority’s Sequoyah Nuclear Power Plant near Chattanooga has spurred the Nuclear Regulatory Commission to increase its oversight of the plant.
NRC cited four outages at the plant’s Unit 1 in the past three quarters. “Overall, the Sequoyah plant is operating safely,” the commission said. “However, these shutdowns point to potential performance issues and we want to ensure that TVA addresses them appropriately.”
TVA spokesman Jim Hopson said the utility has taken steps to improve operations. “We’ve already placed initial corrective actions into place to improve overall performance,” he said. “We’ll continue to look at that. We’ll focus on trying to get Unit 1 back into regular oversight status.”
