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EPA: Mercury Rules for Coal, Oil Power Units Not ‘Appropriate and Necessary’

December 28, 2018

Because compliance costs to coal- and oil-fired power plants for the Mercury and Air Toxics Standards (MATS) far exceed quantifiable benefits to regulating hazardous air pollutant (HAP) emissions, the Trump administration has proposed it is not “appropriate and necessary” to regulate HAP emissions from power plants under Section 112 of the Clean Air Act (CAA), according to a document signed by acting Environmental Protection Agency (EPA) administrator Andrew Wheeler on Dec. 27.

However, the EPA did not propose to remove coal- and oil-fired power plants from the list of source categories regulated under that section of the CAA, which means the 2012-finalized MATS remains in place. The EPA’s proposal, released publicly Dec. 28, is outlined in a revision to the agency’s final supplemental cost finding for MATS, which was required by a U.S. Supreme Court decision in June 2015.

The agency on Friday also made public proposed results of the long-awaited MATS risk and technology review (RTR). The separate evaluations of risk and technology are required under CAA Section 112 every eight years after final HAP standards go into effect to determine if new developments should be incorporated into the standards.…

Power Plant Control Loop Tuning and Optimization [PODCAST]

December 2, 2018

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Optimizing power plant control systems can be challenging, but new tools are available to simplify and improve the process. On this episode of The POWER Podcast, Executive Editor Aaron Larson spoke with Jon Towslee, digital engagement leader for ABB Inc.’s Industrial Automation Power Generation & Water business.

Towslee explained how ABB Ability is focused on improving customers’ businesses by optimizing assets and operator effectiveness, and enhancing top-to-bottom performance. Solutions like the company’s loop performance monitor can be used to identify such things as transmitters that are providing bad data, noisy signal lines, and actuators that aren’t working correctly. Once maintenance crews have all equipment functioning properly, technicians can evaluate process control schemes to ensure they are responding appropriately, which then permits loops to be tuned for optimal performance.

The loop performance monitor evaluates control loops on 17 different parameters. Once individual loops are optimized, higher-level adjustments can be made. Ultimately, the tools allow plant operators to expand boundaries and operate plants more closely to maximum safe operating limits.…

Voters Back Nuclear Power, Phaseout by 2025 Nixed

November 28, 2018

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In a referendum held alongside local elections, the Taiwanese electorate voted overwhelmingly to abolish a stipulation in the country’s Electricity Act that called for all nuclear energy-based power-generating facilities to completely cease operations by 2025.

Many experts considered it a surprising victory for pro-nuclear activists. In January 2016, Taiwan’s Democratic Progressive Party garnered widespread support in elections, running on a platform that included the elimination of nuclear power by 2025. After the election, leaders quickly passed an amendment codifying the nuclear phaseout.

However, a blackout on August 15, 2017, apparently helped change many people’s views on nuclear power. The outage occurred when a contractor accidentally interrupted the gas supply to the 4,384-MW Tatan power station, Taiwan’s largest gas-fired plant. The interruption caused all six units at the site to shut down, and 6.6 million households and businesses across the island lost power for more than five hours. At the time, three of Taiwan’s six then-operational nuclear reactors were offline for maintenance.…

Distributed Energy Is Disrupting the Power Industry: Is the Sky Falling?

October 19, 2018

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Utilities are faced with many disruptive changes in the power market. Customers are demanding cleaner energy and turning to distributed generation as a solution. One expert suggested power companies must react and evolve their business models to change with the times.

During a keynote presentation at the Distributed Energy Conference in Golden, Colorado, on October 17, Roy M. Palk, Esq. (Figure 1), president of New Horizons Consulting and former CEO of East Kentucky Power Cooperative, said, “The utility model, in terms of planning, has just been turned upside down. It will stay that way, in my opinion, for years to come.”

1. Roy Palk, Esq., president of New Horizons Consulting, gave a keynote presentation during the Distributed Energy Conference, in Golden, Colorado, on October 17, 2018. Source: POWER

However, Palk was not pessimistic about the future. He encouraged power utilities to “embrace the changes.” The three points that Palk wanted attendees to take away from his presentation were:

Power companies were born and thrive on disruption.

…

Nuclear Power Roundup: New Milestones Reached on Several Reactors

October 4, 2018

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A handful of nuclear power projects around the world completed notable achievements recently: Rostov 4 entered commercial operation, Tianwan 4 achieved first criticality, the Akademik Lomonosov floating nuclear power plant completed fuel loading, Leningrad II-1 received its commissioning permit, and the dome was installed on Karachi 3.

Rostov 4

Rostov Unit 4 was placed into commercial operation on September 28, three months ahead of schedule. The reactor is the last VVER-1000 type that will be constructed in Russia. However, Rosatom said the design incorporated some safety elements that are used in Generation 3+ power units.

“Rostov NPP [nuclear power plant] is the first NPP in the newest history where the so called straight-line construction that provides both adherence to deadlines and maximum effective use of materials and financial resources was revived. It is due to this type of construction [Rostov] NPP was constructed not only 3 months earlier, but with the high quality,” Director General of Rosenergoatom JSC Andrey Petrov said in a press release announcing the achievement.…

Several States Urge Federal Court to Rule on Clean Power Plan

September 6, 2018

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Seventeen states have asked the U.S. Court of Appeals for the D.C. Circuit to reject the Trump administration’s efforts to further delay the court’s decision on legal challenges to the Clean Power Plan.

In a filing with the court on September 4, the attorneys general of California, Connecticut, Delaware, Hawaii, Illinois, Iowa, Maine, Maryland, Massachusetts, Minnesota, New Mexico, New York, Oregon, Rhode Island, Vermont, Virginia, and Washington, noted that the case—State of West Virginia, et. al. v EPA (No. 15-1363)—claimed that the U.S. Environmental Protection Agency (EPA) has taken “undue advantage” of the now 18-month-long abeyance granted to the agency by the federal court to allow it to review the rule.

The states were joined by the District of Columbia, and the cities of Boulder, Colorado; Chicago, New York, Philadelphia, and South Miami, as well as Florida’s Broward County.

The EPA is “prolonging the delay through a series of notices that do not come close to fulfilling EPA’s statutory obligations,” the filing claims.…