Atomic Show #350 – Dr. Shannon Bragg-Sitton, Associate Laboratory Director, Energy & Environment Science & Technology, INL

The Idaho National Laboratory (INL) is best known for its nuclear engineering and pioneering reactor testing programs. Somewhat lesser known is the Lab’s cutting edge research in all other energy sources including wind, solar, hydro, geothermal, biomass and batteries.

The Energy and Environment, Science & Technology (EES&T) Directorate, one of five directorates at the Lab, focuses its research on understanding available energy sources and melding them into coherent and maximally effective systems. The Directorate’s R&D programs seek to take advantage of the special characteristics each energy source adds to the mix.

Dr. Shannon Bragg-Sitton is INL’s Associate Laboratory Director in charge of the EES&T. She is a nuclear engineer by education and experience who initially focused on what she refers to as “nano-reactors.” Those devices, the smallest of which are no bigger than a kitchen trash can, are designed to serve space applications, either as planetary – or Lunar – power supplies or as propulsion sources.

During our conversation, Shannon described her career trajectory from being a student to working at NASA to being a professor at Texas A&M focused on space nuclear power. She described moving to the Idaho National Laboratory as a way to broaden her technical and leadership scope. She mentioned how that move was partially motivated by the challenge of being a tenure track professor while also having three “very young” children.

At INL, she branched out from her special interest in very small reactors and eventually found herself in charge of a division that developed concepts for micro grids that incorporate a wide variety of power sources in ways that maximized effectiveness and economy while still ensuring continuing reliability. She learned to appreciate the value and contributions from non nuclear power sources while never losing her passion for nuclear energy and its capabilities.

Her career advice boils down to a set of recommendations for young professionals:

Maintain a questioning attitude,
Be open to new opportunities,
Be willing to get outside of their comfort zone
Be able to adapt in the face of changing circumstances.

Aside: Shannon has a special interest in the development of young professionals in the nuclear industry. When we first met, she was part of a group of seven passionate professionals who were founding a group they called NA-YGN – North American Young Generation in Nuclear. At the time, the industry organizations were dominated by people in the north of 45 category. NA-YGN was aimed at people who were 35 or younger, but they made an exception for a 40+ blogger who shared their passion. End Aside.

We talked about the utility of energy storage, both in the form of electrical energy stored in a chemical battery and thermal energy stored in a system like the molten salt tanks associated with TerraPower’s Natrium power plant. We talked a bit about the rapid successes being achieved in micro reactors as part of the Reactor Pilot Program and we also talked about the way that a number of exiting developments at INL are helping to contribute to a growing economy in Idaho Falls.

As a long-time resident of Idaho Falls, Shannon expressed mixed emotions about the increased traffic and higher costs of living associated with new activities at INL, but came down on the side of being happy about the economic development. She also spoke passionately about Idaho as a wonderful place to live and to raise a family, especially if you like activities like hiking and camping.

You’ll enjoy the show.