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Dominion Reaches Deal to Keep Millstone Nuclear Plant Open

March 18, 2019

Dominion Energy has reached an agreement with utilities in Connecticut to keep the Millstone Power Station, the state’s only nuclear power plant, in service for at least another decade.

Dominion announced the deal March 15, the deadline the company had to tell ISO New England, the regional grid operator, whether it would retire the two reactors at the 2,088-MW plant.

The Millstone station produces about half the electricity in Connecticut. Analysts have said it also accounts for 98% of the state’s carbon-free power, and its operation is seen as key for the state to meet its carbon reduction goals.

“This is a huge win for Connecticut, the region, and our colleagues at Millstone,” Paul Koonce, president and chief executive of Dominion’s Power Generation Group, said in a statement. “Not only does this preserve the vast majority of Connecticut’s carbon-free electricity, it preserves good jobs for the 1,500 women and men who work at Millstone and keeps 4,000 other residents employed.”

Dominion, headquartered in Richmond, Virginia, has for years said that the Millstone station is no longer economic to operate.…

THE BIG PICTURE: Japan’s Nuclear Comeback

March 1, 2019

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After the Great Tohoku Earthquake and tsunami, and ensuing crisis at the Fukushima Daiichi nuclear plant in March 2011, Japan issued stringent safety regulations and reviews that affected its entire 50-reactor fleet. It meant that as each Japanese nuclear reactor entered its scheduled maintenance and refueling outage, it could not returned to operation until restart was approved by both Japan’s Nuclear Regulation Authority (NRA) and the central government. Nuclear operators also need consent from governments of local prefectures.

Between September 2013—when Ohi 3 and 4 were shut down—and August 2015, when Sendai 1 and 2 restarted, Japan’s entire reactor fleet went black. In 2013, though there was no consensus on how long the approval process could take, some industry observers forecast reactors under NRA review could be back online within a year. As of December 2018, only nine reactors had restarted. Sixteen others were under review by the NRA, where average review duration stretched beyond 1,000 days, owing to staffing issues.…

Hitachi May Scuttle UK Nuclear Project

January 14, 2019

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Hitachi may cancel its plans for a $ 20.5 billion nuclear power project in Wales, according to several media reports from the UK and Japan. The Japanese company is expected to determine the fate of the project at a board meeting this week.

The Guardian newspaper was among those that in recent days reported an impasse in talks among Hitachi, UK officials, and the Japanese government regarding financing for the plant would likely lead to a cancellation. Hitachi already has spent about $ 2.6 billion on the project.

The Nikkei Asian Review on Jan. 11 reported that Hitachi’s board this week would likely move to suspend all work on the Wylfa Newydd plant. The power station on Anglesey island, on the north coast of Wales, was first proposed in 2009 as a 3,000-MW plant with two advanced boiling water reactors. Horizon Nuclear Power, a joint venture of E.ON and RWE, was behind the project. Hitachi bought the venture in 2012.

Two earlier 490-MW reactors at the Wylfa site, known as Reactor 1 and Reactor 2, became operational in 1971.…

Columbia Nuclear Plant Sets Another Generation Record, Credits Good Performance

January 10, 2019

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Operators of the Columbia Generating Station have set a new generation record at the nuclear plant 12 miles north of Richland, Wash., sending more than 9.7 million MWh to the Pacific Northwest power grid during 2018.

The single 1,207-MW single GE-built Mark-2 boiling water reactor that is owned and operated by Energy Northwest—which comprises 26 public power member utilities across Washington state—has set new generation records five out of the past seven years.

Because the plant consistently surpassed generation records set first in 2012 (9.3 TWh), then in 2014 (9.5 TWh), and again in 2016 (9.6 TWh), the plant was a POWER magazine Top Plant in 2017. The plant won the award also due in part to an operations overhaul that began in 2009, when Columbia suffered a series of scrams that landed it on the Nuclear Regulatory Commission’s (NRC’s) radar, and led it to vastly improve its performance.

A Remarkable Cost of Power

The company said in a Jan.…

NERC: Accelerated Coal and Nuclear Retirements Pose Limited Reliability Risks

December 20, 2018

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The accelerated retirement of coal-fired and nuclear generation by 2022 could adversely affect reliability in four regions, including in the east and over a swathe of the central U.S., the North American Electric Reliability Corp. (NERC) warned as it released findings from a “stress-test” scenario.

But the entity tasked with ensuring reliability and security of the North American bulk power system (BPS) also noted six of 10 assessment areas—which cover PJM, New England, MISO, the Electric Reliability Council of Texas (ERCOT), and the Western coast—would have enough generation capacity to maintain peak demand, even if they see high levels of generator retirements over the next five years.

A “Stress-Test” Scenario

The findings stem from NERC’s Dec. 18–released “Generation Retirement Scenario,” which the entity evaluated because, it said, the retirement of traditional baseload generators and their rapid replacement with natural gas–fired, wind, and solar generation “is changing the characteristics of the BPS and introducing new considerations for reliability planning.”

The so-called “stress-test” scenario essentially assumes that areas where coal and nuclear currently make up a large share of resource levels will see accelerated retirements so that by 2022, they will lose 30% of their coal capacity and 45% of their nuclear capacity.…

Plagued by Grim Challenges, Vogtle Nuclear Expansion Lags Behind Schedule, Says Oversight Consultant

December 6, 2018

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The two-unit Vogtle expansion in Georgia faces major challenges that are poised to derail its schedule and ramp up costs—and the project is already behind schedule, a consulting firm tasked with construction oversight of the project told regulators.

In revealing testimony filed with the Georgia Public Service Commission’s (PSC’s) public interest advocacy staff on November 30, Donald Grace, vice president of engineering for Cost Plus Technology—Nuclear Construction Oversight (CPT), noted that the total construction cost—which includes all owner-shared costs but excludes financing costs—to complete the two Vogtle units by the scheduled November 2021/2022 timeframe is $ 17.1 billion. Only about 60% of the project is complete, he said.

Meanwhile, the project faces several potentially debilitating challenges that could cause delays and drive up costs. Foremost among them are labor shortages. While Georgia Power noted about 7,000 workers were onsite as of December 4, according to Grace, “Obtaining sufficient numbers of qualified craft labor pipe fitters and electricians are necessary to support the planned installation rate for bulk piping and electrical commodities.”…