Nuclear Utility User Group

20th Annual ETAP Nuclear Utility User Conference
June, 2020 - Irvine, California


The 20th Annual ETAP Nuclear Utility User Conference (NUUC) offers a technical forum on the modeling and analysis of power systems of specific interest to Nuclear Utility professionals.

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ETAP Nuclear Utility User Group

The ETAP Nuclear Utility User Group is open to any and all client institutions of ETAP licensed as nuclear users. All users within a nuclear client institution using ETAP to support the activities of a nuclear utility are encouraged to participate in the annual conference and its related activities. ETAP users with a non-nuclear license who support nuclear activities can participate as an associate member.

Adobe Reader Download the NUUG Charter

Conference Goals

The purpose of the ETAP Nuclear Conference is to provide feedback and suggestions directly to ETAP's R&D group to help with the development of detailed specifications for future modules and enhancements. This event provides the opportunity to focus on detail requirements and needs specific to power generation plants and the nuclear industry. Many features and capabilities of ETAP have been developed based on the direct participation of ETAP Nuclear Utility User Group.

  • Evaluate and review recent revisions to ETAP
  • Allow and encourage the exchange of member experiences and ideas for the use of ETAP
  • Address 10-CFR-21 from a user perspective
  • Provide consolidated and prioritized feedback information to ETAP in relation to practical operating experience from the perspective of the nuclear power industry
  • Share techniques and philosophies used in analyzing the auxiliary systems of nuclear power plants
  • Learn about “best practices” through technical presentations, discussions and networking
  • Network and interact with other ETAP nuclear users
  • Be the first to learn about the new and future developments of ETAP
  • Provide feedback and requirements for future recommended enhancements to ETAP
  • Get answers to specific questions regarding ETAP
  • Develop your knowledge of power system modeling and analysis

ETAP NUUG Committee


Mark D. Bowman
TVA Nuclear
(423) 751-8239

Technical Chairman

Timothy Lensmire
NextEra Energy
(920) 755-7685

Associate Chairman/Secretary

Jeff Weibelt
Southern Nuclear Operating Company
(205) 992-7649

etap 2016 big daddy award winner

The Big Daddy Award

The “Big Daddy” Award is presented to a member who has actively contributed for many years to the ETAP NUUG.

The award recognizes the recipient’s long term contribution to the nuclear power industry by partnering with ETAP.
View Big Daddy Award winners

ETAP NUUG Special Report

In March 2013, ETAP NUUG formed the ETAP NUUG Open-Phase Task Force, a team of power system analysis experts from Duke Energy, Enercon Services, Inc., Exelon Corp., MPR Associates, Inc., Sargent & Lundy, LLC, Southern Nuclear, and Tennessee Valley Authority (TVA).
Read the full NUUG Special Report

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