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About TN

Who we are. 

Innovating Within Science and Technology


TerraNexum on GitHub
TerraNexum on Open Collective

Professional Memberships

We are proud to be a member of the following professional organizations:

Cloud and Information Technologies

TerraNexum is proud to participate in the following programs:

Managing Founders

Dahl Winters
Co-Founder, CEO

Dahl Winters has been a leader in science R&D and technology initiatives with over 15 years of experience in IT and systems development services. She brings a wealth of expertise with strengths in geospatial big data analytics, artificial intelligence, cloud computing, and R&D innovation strategies to TerraNexum.

Previously, Dahl was the CEO and CTO of DeepScience Ltd, planning and building systems for science and sustainability applications for 7 years that have won several innovation challenges. These included developing geospatial big data analytics capabilities for enterprise customers as well as innovative systems for renewable energy and carbon capture applications.

Dahl obtained her Bachelor of Science in Biology from Duke University where she received the Reginaldo Howard full-tuition scholarship for academic merit and leadership. She also holds a Master of Science in Ecology from the University of North Carolina of Chapel Hill where she was a predoctoral fellow of the National Science Foundation.

Loren Winters
Co-Founder, Advisor - Physics

Dr. Loren Winters is a co-founder and officer of TerraNexum, serving as our secretary and treasurer. Formerly, Loren served as a physics educator for forty years and was a pioneer in the use of emerging technologies for education. He also developed a program in high-speed imaging that spread nationwide and helped build a consumer market in the field.

In addition to teaching, he has done photography professionally, licensing high-speed photos for educational and commercial use. In 2012, he received the Raymond C. Bowman Award from the Society for Imaging Science and Technology for dedication in making high-speed photographic recording available to students.

Loren has been an avid volunteer of Friends of Mt. Evans and Lost Creek Wilderness (FOMELC), a US Forest Service volunteer group maintaining these wilderness trails and keeping invasive species under control.

Advising Founders

Thomas J. Bogdan
Co-Founder, Advisor - Climate Science

Dr. Thomas J. Bogdan is a physical scientist, research administrator and science communicator, with demonstrated experience in the public, private and academic sectors, both domestically and internationally. He focuses on enabling investors, policy makers and influencers to bring the best current space and environmental science knowledge to bear on pressing economic, social and national security problems that entail advanced technologies. As the sixth President of the University Corporation for Atmospheric Research (UCAR) from 2012 to 2015, Tom ushered in a series of modern enterprise business solutions that created numerous efficiencies, reduced operating costs, and facilitated enhanced collaborations between the 1400 professional staff members and the allied academic community across the United States and Canada. As a result, during Tom’s tenure, UCAR was again selected by the National Science Foundation (NSF) to operate its largest and oldest Federally Funded Research and Development Center, the National Center for Atmospheric Research. The five-year Cooperative Agreement signed by UCAR and the NSF was in excess of one billion dollars.

In addition to these activities, Tom has had an extensive career as a research scientist, having authored over 100 papers in the refereed science literature. He also managed a multi-million-dollar portfolio of research grants with the National Science Foundation.Tom holds a Doctorate in Physics from the University of Chicago and is a graduate of the Federal Executive Institute’s program in Leadership for a Democratic Society.

Oscar A. (Andy) Quezada
Co-Founder, Advisor - Energy and Geoscience

Andy Quezada is a scientist and engineer with two decades of experience in the energy and technology development industries. He has served as a geophysicist, team leader, and advisor for large independent corporations, startup companies and academic research groups. He is currently serving as VP of Subsurface Development at Carbon America.

With a passion for innovation and the adoption of emerging technologies, he has strived for the application of integrative approaches from geophysical, remote sensing and engineering fields to the arising challenges in traditional and renewable energy. His recent experience serving as a scientist in the renewable energy industry has been focused on climate solutions and streamlining novel applied science ideas.

With the upsurge of attention on carbon removal and management, Andy's experience has been vital for tapping into the vast amount of human knowledge and technology developed for the oil and gas industry for the benefit of the new carbon and renewable energy economy.

Andy graduated from the University of Texas with a MSc in geophysics, is active in the geoscience and renewable energy communities, as well as being recently involved in mentoring students at the Colorado School of Mines.


Our Software

For the Energy Transition and Climate Adaptation

Software for Industrial Symbiosis and Decarbonization

The Kalundborg Symbiosis in Denmark is a network of 16 companies that formed the world's first industrial symbiosis in 1972. This configuration for circular production has resulted in significantly smaller expenditures, waste, and emissions for the past 50 years.


TerraNexum uses geospatial libraries and optimization techniques, including simulated quantum optimization able to run on everyday computers, to locate and plan for future locations where circular production can take place.

Whether between multiple companies as with the Kalundborg Symbiosis or between multiple assets of single companies such as distributed energy resources (DERs) or broadband fixed wireless networks, our software could serve as a general engine for identifying what connections between these companies or assets would be needed to achieve the greatest value.

The community version of our software, called OpenQGO at present, is available on GitHub. Ongoing work will be done to improve the types of representative technologies included, along with its speed when representing increased complexity.


Above: optimization results for a multi-company symbiosis involving investments in renewable energy for decarbonization within the US.

Below: A view of the results from our initial user interface, showing connections which are outputs of a simulated quantum optimization run for the problem above.

Open Source Software For Open Hardware

We are a for-profit company, but financial capital isn't the only way the world should profit.

Knowledge is personal capital. Communities learning, sharing, and applying their knowledge help to build human capital. The improvements made to their lives with new technologies is a source of physical capital.


All our software is MIT-licensed for the broadest freedom of use.



Sometimes thinking outside the box requires thinking inside the box.

Given a space and the energy and materials around you, this open-source project aims to determine the best product or enabled service you can produce with zero net emissions. The next step will be to determine the system configuration details, including the technologies and energy/material flows necessary.


Community Presentations

Sustainability and resilience are two of the biggest challenges facing our world today. The way we generate and use energy, transport goods and people, and build and operate our infrastructure all have significant impacts on our planet and its natural systems. However, addressing these challenges requires more than just identifying problems. We also need to develop and implement effective solutions that can help us transition to a more sustainable and resilient future.

That's why we have assembled this collection of presentations on topics such as geothermal energy, carbon dioxide removal, solar energy, and more. Through these presentations, each carefully researched and explored by our Spring 2023 Executive High School Intern, Allie Westfall, we aim to highlight some of the key challenges facing sustainability and resilience, and showcase some of the innovative solutions that are already available or in development.


Achieving sustainability and resilience by making technological systems work better.

Keep It Simple

Does it make sense to spend time on work so we can spend money on things we don't really need?

If it can't or won't go with you when you need it, is it really worth your time? Certainly not your money.

Eliminate Waste

We strongly believe in optimization. Why throw away anything that could be making you or someone else a profit? If you don't know how to reuse or recycle it, it's time to learn. No more wasteful spending, energy use, or emissions.

Improve Efficiency

Sustainability is simple. No need to overengineer how you get there. Energy in, resources in, product out. The least inputs for the most output. Not profiting enough? Optimize. Wasted energy and resources are costing you money.

Be Resilient

Have the freedom and flexibility to be resilient when conditions demand it. Don't let unreliable energy and resource supplies add to your list of constraints.

Produce It Yourself

Your ability to live and work sustainably should be in your control always. Life is not something you should have to buy. Nothing else alive has to pay to live.

Build Your Future

If you are waiting on anyone else but yourself to reach your sustainability or other life goals, you've lost control of your future. Build it the way you want it.