Number of reactor outages on the decline

Sponsored by

Only 11 of the nation’s 100 commercial nuclear reactor units were offline May 21, according to data from the Nuclear Regulatory Commission (NRC), although a few listed their generation percentage at less than 5 percent.

There were 20 units listed with zero generation as recently as a month ago. Spring and fall are the traditional times for refueling outages and, in some cases, purely maintenance outages. Companies are now working to conclude most outages in order to have the units available for the summer air conditioning season.

So expect fewer reactors to be on the sidelines not long after the Memorial Day holiday.

One of the most recent outages occurred Sunday, May 18, when the Xcel Energy Prairie Island 2 nuclear unit in Minnesota was taken offline to remove an obstruction in drain piping from a pump.

The work is expected to be completed in a few days. The situation poses no danger to the public or plant workers, the company said.

·      FirstEnergy Beaver Valley began its refueling outage April 18. After beginning startup and hitting 18 percent on May 20, it was back at zero on May 21

·      Public Service Enterprise Group (PSEG) Salem 2 began its outage April 12 and remains out of service.

·      PPL Susquehanna 1 went into refueling on April 12; still offline.

·      Duke Energy Catawba 1 in South Carolina started a regularly-scheduled refueling and maintenance outage May 6.

·      Duke’s Harris 1 unit in North Carolina a planned maintenance outage (no refueling involved) May 16, a spokesperson said. The unit is down for turbine-related work including replacement of hydrogen coolers and exciter coolers, a spokesperson said.

·      Tennessee Valley Authority (TVA) Sequoyah 2 began its refueling outage May 12.

·      SCANA V.C. Summer started in South Carolina its refueling outage April 4.

·      Exelon Braidwood 2 in Illinois began its refueling outage May 3.

·      Entergy Arkansas Nuclear 2 began coast-down to refueling April 23, went offline around April 27.

·      STP Nuclear Operating Co.’s South Texas Project 1 went down for refueling March 15.

One of the more recent returns to services include the Dominion Millstone 2 unit in Connecticut. It returned to service early May 18 after a refueling outage that started April 5.

Sponsored by
Most Popular Articles


April 2015
Volume 19, Issue 4

Utility Products Topics

Transmission & Distribution
                       Vehicles & Accessories
Tools & Supplies   Safety
Line Construction & Maintenance   Test & Measurement

How to deploy mobile forms + devices to speed up field service processes & reporting

Overcoming the pain points associated with any process is much simpler and more cost effective than you think. This webinar will detail the benefits of switching to mobile forms for field data collection and reporting.
We'll examine real use cases and ROI of integrating mobile forms within a given field service process, including for work orders, inspections, checklists and proposals.
A quick AT&T Mobile Forms demo will reveal the feature rich, user-friendly nature of the solution. You'll see why it’s a must-deploy to speed up data collection, eliminate invoicing/data entry lags and auto-generate/deliver insightful reports.



Industry Company Pages

Keep up-to-date with the latest news and articles from some of the prominent utility product companies and resources.


Everlast Substation signs

Everlast safety signs and Everlast Substation signs meet all ANSI and OSHA requirements and continue to be readable for the life of the substation. When most signs fail ours shine.

Everlast pole tags

Everlast pole tags for distribution poles have been used all over the world in this great earth's worst environment's proving it is the longest lasting product to use on pole's!

Swage Bus Accessories

Swage Bus Accessories use a compression technology process called "swaging" that enables installation of aluminum bus accessories without the need of a welder.