Jill S. Tietjen

Jill S. Tietjen

President and CEO, Technically Speaking, Inc.


Swagata Sharma
Brianna Medema, P.E.
Anupritee Das
Melinda Piket-May
Vanessa Li
Linh Truong
Sissy Nikolaou
Laureen Ervin
Deya Riojas Glover
Alicia Bailey
Agatha Kim
Neha Dobhal
Close Up
  • What I Do
    I provide consulting services to the electric utility industry. My areas of expertise are in generation planning and fuels. I oversee analysis that is conducted, write reports and testimony, and serve as an expert witness.
  • Why Engineering?
    I really liked math and I wanted to apply my skills to solve problems.
  • School Days
    University of Virginia, B.S. Applied Mathematics, minor - electrical engineering University of North Carolina at Charlotte - M.B.A.
  • My Day At Work
    In the early years, I ran two types of simulation models - production costing and capacity expansion. Production costing models simulate the operation of the existing fleet of generation units. Capacity expansion models look into the future and project the types of generation units that will optimally serve customer needs over the planning horizon (typically 20 years).
  • Best Part
    I love to solve problems. I like to know that my work is making a difference. At the very foundation, my job is simple - I help keep the lights on.
  • Proud Moments
    I helped several utilities get the certificates of public convenience and necessity that they need to build power plants to serve customer needs. I was involved as an expert witness in that process. I am also a writer and an advocate for women. I am very proud of my best-selling and award winning book - Her Story: A Timeline of the Women Who Changed America.
  • Challenges
    Life and work rarely goes as one predicts. I have overcome bad bosses, employment cultural fits that did not work for me, and work environments that did not suit me.
  • My Family
    I am married and we have two cats.
  • Dreams and Goals
    To change the perception of women around the world. I am now an advocate for women.
  • Inspiration
    My parents. The Society of Women Engineers and the outreach program - A Great Women in Engineering and Science essay contest. That led to my nominations of many women for national awards and most of my books.
  • Want to be an Engineer?
    YOU CAN DO IT!! The keys are passion, determination, and persistence. Don't let anyone tell you that women don't or you can't. You can.
  • Additional Thoughts
    I love to solve problems. I like to know that my work is making a difference. At the very foundation, my job is simple - I help keep the lights on.
  • Hobbies
    I still play singles tennis and really enjoy it. I also love to do needlework, particularly counted cross stitch and needlepoint.

I am proud to work in the electric utility industry - helping to provide electricity to power our world. I serve as a consultant and provide expert witness services in the areas of planning for power plants and rates. For over 30 years, I have worked to get more women in the engineering field. An engineering career is so meaningful - engineers make the world work.

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B.S., Applied Mathematics (minor, Electrical Engineering), University of Virginia. M.B.A., University of North Carolina at Charlotte. Registered Professional Engineer, Colorado.
Volunteer Opportunities
  • I am willing to be contacted by educators for possible speaking engagements in schools or in after school programs or summer camps.
  • I am willing to be interviewed by interested students via email.
  • I am willing to answer written interview questions to be posted on the EngineerGirl website.
  • I am willing to participate in a conference call with a group of interested students who would like to know about my career.
  • I am willing to create an article or short feature about my some aspect of my career for the website.