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First AP1000 Nuclear Units Reach Key Milestones

June 23, 2018

Two Westinghouse AP1000 nuclear power plants being constructed in China have successfully completed significant project milestones.

Sanmen Unit 1—the world’s first AP1000 reactor—achieved initial criticality on June 21. Initial criticality is a nuclear industry term meaning the reactor’s neutron population has remained steady from one generation to the next and the nuclear fission chain reaction is self-sustaining for the first time.

“Today we completed the final major milestone before commercial operation for Westinghouse’s AP1000 nuclear power plant technology,” Westinghouse President and CEO José Emeterio Gutiérrez said in a press release announcing the accomplishment. “We are one step closer to delivering the world’s first AP1000 plant to our customer and the world—with our customers, we will provide our customers in China with safe, reliable and clean energy from Sanmen 1.”

The next significant step is connecting the unit to the electric grid. Assuming work continues on schedule, Sanmen Unit 1 will be the first AP1000 nuclear power plant to commence operation.

Meanwhile, at the Haiyang facility, fuel loading began on Unit 1—another AP1000 reactor.…

DOE Set to Support Small Modular Coal Units

May 11, 2018

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The U.S. Department of Energy (DOE) wants to know whether small-scale, modular coal-fired power plants are feasible. The DOE this week put out a request for information on how to accomplish such projects, following on its announcement earlier this year that it wants to establish funding opportunities for new coal technologies in an effort to prop up the industry.

“The objective of this RFI [Request for Information] is to support DOE’s mission to lead research and technology development that promotes the advancement of coal-fired power plants that provide stable power generation with operational flexibility, high efficiency, and low emissions,” according to the DOE announcement made May 8. Among the details: a design that has a lower cost than traditional coal plants, capability to be load-following, and with an efficiency higher than 40%, well above the current average of 33% for a traditional coal plant. (The efficiency of a power plant is measured as the percentage of the total energy content of that plant’s fuel that is converted into electricity.)…

More Coal Units Being Mothballed in Indiana

February 27, 2018

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An Indiana utility has confirmed it will close three coal-fired power units, replacing that generation with a proposed natural gas-fired facility along with additional solar power.

Evansville, Indiana-based Vectren Corp., a holding company whose assets include Vectren Energy Delivery of Indiana-South, on February 20 released its Smart Energy Future strategic plan, designed to reduce Vectren’s carbon emissions by at least 60% from 2005 levels to comply with Environmental Protection Agency (EPA) regulations.

Vectren first talked about retiring coal-fired units in late 2016, a surprising move in a state that has long relied on coal for the bulk of its power generation, ranking second behind Texas in total coal consumption as recently as 2016, according to the U.S. Energy Information Administration (EIA). However, EIA notes how coal’s share of the state’s total electric power generation has fallen in recent years, and after decades of receiving more than 90% of its power from coal—as much as 98% in 1998—Indiana now receives about 71% of its electricity from coal, according to EIA data from 2016.…

Two More Japan Nuclear Units Will be Decommissioned

December 24, 2017

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Kansai Electric Power Co. (KEPCO) announced it will permanently close two older nuclear reactors in Japan, rather than invest nearly 100 billion yen ($ 900 million) to bring the units up to the country’s new safety regulations. Japan’s Nuclear Regulation Authority (NRA) created new standards for the country’s nuclear plants after the meltdown at the Fukushima Daiichi plant in March 2011.

KEPCO on December 22 said it will decommission reactors No. 1 and No. 2 at the Oi facility in central Japan over the next year. Each unit has a generation capacity of 1,175 MW. The reactors, which came online in March 1979 and December 1979 respectively, will be the largest decommissioned in the country since the Fukushima disaster, which occurred when a 9.0-magnitude earthquake caused a massive tsunami that flooded the Fukushima plant in the northeastern part of the country. The resulting release of radiation was the largest since the Chernobyl meltdown in Russia in 1986.

Japan idled all 50 of its remaining nuclear units after the Fukushima incident.…

More U.S. Coal Units Closing Despite Possible Market Pricing Change

November 22, 2017

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U.S. utilities continue to announce closures of financially troubled and older coal-fired power plants even as government officials work on a bailout plan to keep them operating.

Owners of a coal plant in Montana that has only been online since 2006 informed the state’s Public Service Commission (PSC) last week of plans to shutter the facility early next year if they can’t find a buyer. The news comes at the same time Louisville Gas & Electric and Kentucky Utilities (LG&E-KU) said it would close two long-running coal-fired units at the E.W. Brown Generating Station near Harrodsburg, Kentucky, in February 2019.

The announcements are the latest in a series of closures announced in recent months, including three large coal-fired plants in Texas—two operated by Vistra Energy and another by Luminant, a Vistra subsidiary—that generate about 4.2 GW of electricity, or about 12% of the state’s coal-fired generation capacity. Another large Texas plant, CPS Energy’s 840-MW Deely station in San Antonio, is scheduled to close in 2018.…

UPDATED: SCANA, Santee Cooper Abandon V.C. Summer AP1000 Nuclear Units, Citing High Costs

August 1, 2017

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SCANA Corp. and Santee Cooper have ceased construction of Units 2 and 3 at the V.C. Summer Nuclear Station in South Carolina.

The project owners said the decision, prompted by analysis of detailed schedule and cost data, would save customers nearly $ 7 billion. The project, which was about 64% complete, has been in limbo since key contractor Westinghouse filed for bankruptcy in March.

The decision comes just days after Westinghouse’s parent company Toshiba agreed to pay the two project owners nearly $ 2.2 billion to cap its liabilities from the unfinished nuclear project. Toshiba reached a similar $ 3.7 billion agreement with Southern Co. in June as it seeks to limit its liabilities from the Vogtle project. Both AP1000 nuclear projects are years behind schedule and billions of dollars over budget.

Construction continues at the two Vogtle AP1000 units in Georgia. A project owner, Georgia Power, on July 28 told POWER that it expects to complete the cost-to-complete and schedule assessment by the end of August.…