CASSIOPeiA – A New SPS Concept

Ian Cash, of SICA Design Ltd, presented a new Solar Power Satellite (SPS) concept during the Space Solar Power Workshop of the IEEE WiSEE conference held in Montreal last month. Ian’s presentation is linked below. Special thanks to Elisa Shebaro of PowerSOL, who attended this conference and brought the CASSIOPeiA presentation to my attention.

The CASSIOPeiA Solar Power Satellite is “based on the principle of wavelength-scale modular integration of all major functions, from solar collection through to beam-formation.” With no moving parts, CASSIOPeiA’s patent-pending phased array permits beam steering through 360 degrees.

The ultralight helical structure maintains a constant solar collecting area directly facing the Sun. Stowed as an integrated and highly compact package, this concept offers “the enticing possibility of a fully functional SPS deployed as a single payload.” The full CASSIOPeiA white paper can be read here.

Dr. Seyed (Reza) A. Zekavat, Michigan Tech, and Darel Preble, Space Solar Power Institute, Georgia Tech, co-chair the Space Solar Power Workshop as part of the annual IEEE WiSEE Conference. Papers and presentations from recent Space Solar Power Workshops can be seen at the bottom of Dr. Zekavat’s faculty page, here.

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NASA to Study SBSP … AGAIN

NASA Selects Economic Research Studies to Examine Investments in Space

As one of five research proposals selected for year-long studies, NASA will study the Colorado School of Mines’s proposal, “21st Century Trends in Space-Based Solar Power Generation and Storage.” Although previous NASA studies of the space-based solar power concept have not resulted in any meaningful action, perhaps this time will be different. It is at least encouraging to learn that NASA is still interested in this potentially game-changing idea.

“Our space technology work is focused on providing new capabilities for robotic and human exploration of the solar system, but we are also here to help enable new commercial markets or enterprises,” said Steve Jurczyk, associate administrator for the Space Technology Mission Directorate at NASA. “The results of these studies provide insights into the potential economic impacts of new space-based capabilities and applications which in turn helps guide our investments in technology development.”

Jeremy Hsu’s article, NASA Wants to Know Cost of Space Solar Power, brought this September 23, 2017 NASA announcement to my attention. I left the following perhaps not-so-humble opinion in the comment section of Jeremy’s article:

IMHO: Space Based Solar Power (SBSP) will be our planet’s main source of energy at some point in the 21st century. The initial research and investments will be funded by a public-private partnership, with similarities to the transcontinental railroad and communication satellite projects.

I agree that high launch costs are one of the biggest hurdles to a successful implementation and scale-up of SBSP. Because of this, space-based mining and manufacturing technologies should precede, or at least parallel SBSP development.

Fossil fuels are a finite resource.Only the future point in time at which fossil fuels will be more costly to extract than they are worth is in question. For all practical purposes of humankind, energy from the sun is an infinite resource.

“It can’t be done!” is a self-fulfilling and self-defeating stance, especially when it is fueled by an inordinate amount of self-confidence.

All the best,
Rob Mahan
Self-appointed Advocate
Citizens for Space Based Solar Power

NSS To Premiere IAA Study of Space Solar Power

Space Solar Power

The First International Assessment of Space Solar Power:
Opportunities, Issues
and Potential Pathways Forward

IAA Study of Space Solar Power

Recently, a member of the National Space Society Board of Directors informed Citizens for Space Based Solar Power of the following:

“On 14 November the National Space Society (NSS) will premier the 3-Year, 10-Nation, International Academy of Astronautics (IAA) Report on Space-Based Solar Power.”

From the IAA website: “Now, more than ever, large-scale and sustainable new energy sources are needed to meet global needs while satisfying environmental concerns. . . . During 2008-2010, the first international assessment of space solar power was conducted by a study group under the auspices of the International Academy of Astronautics.” The study contains the following major sections:

1. Introduction
2. Solar Power Satellite Systems Concepts
3. SPS Supporting Systems
4. Technology Readiness And Risk Assessment
5. SSP / SPS Policy And Other Considerations
6. SPS Market Assessment and Economics
7. Preliminary Systems Analysis Results
8. An International Roadmap for Space Solar Power
9. Conclusion: Findings And Recommendations

The full text of the 242-page report can be accessed here.

The following is a 41-minute presentation from the International Space Solar Power Symposium at the National Space Society 2011 International Space Development Conference (ISDC) of a draft report of the study, Space Solar Power: The First International Assessment of Opportunities, Issues, and Potential Pathways Forward by John C. Mankins (Artemis Innovation). Mankins is the Chair and Editor of the study.