The Economist on Space Solar Power

A recent article in The Economist, 23 items of vital vocabulary you’ll need to know in 2023, was a fascinating list of new and not-so-new science and technology-related words / concepts that are starting to bubble up into everyday news stories and conversations. (If you have a free or paid account on The Economist website, or want to sign up for one, you can read or listen to the article linked above.)

The European Space Agency’s SOLARIS Space-based Solar Power Preparatory Programme, as mentioned in the referenced article

In good company with other vital new vocabulary such as passkeys and post-quantum cryptography, I am happy to note that Space Solar Power has been included near the bottom of the list. It’s exciting to see The Economist authors of this article state that the field of space solar power “… is experiencing a new dawn.”

Space solar power
The idea of capturing energy in space using huge solar arrays attached to orbiting satellites, and then beaming it down to Earth as microwaves, has been around since Isaac Asimov proposed it in a science-fiction story in 1941. But the sums have never added up: launching things into space simply costs too much. That could change if launch costs fall far enough, or if new space-based manufacturing techniques emerge, such as mining asteroids for raw materials. And in a high enough orbit, a solar-power satellite could stay in sunlight around the clock, providing a clean, reliable source of power. The European Space Agency sponsored a ground-based demonstration in Germany in 2022 as part of a proposed scheme called Solaris. America, Britain, China and Japan are also funding research in the field, which is experiencing a new dawn.

By Martin Adams, Aryn Braun, Joel Budd, Tom Standage and Vijay Vaitheeswaran
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Space Security and Space Solar Power

ISS030-E-020039 (26 Dec. 2011) — This busy night time panorama was photographed by one of the Expedition 30 crew members from the International Space Station on Dec. 26, 2011. Comet Lovejoy streaks through the star-filled sky just to the right of center. The land mass is the coast of Chile, looking southeast, with several coastal cities in the capital city region near Santiago. A 28-mm focal length was used to record the image.

“I have often suggested that given humanity’s increasing and irreversible dependence on outer space for daily human needs, space will either be safe for all or for none.”

Nayef Al-Rodhan

The future of space based solar power is dependent on solving technical, financial and political issues. Could the security of outer space end up being the most difficult issue of all? Perhaps the collective need of all humankind for a virtually unlimited source of clean energy can be the catalyst for geopolitical agreement on a peaceful use of outer space.

What will space security look like in 2021?

The article, published in The Space Review and linked above, summarizes the current positions of the United States, our allies and our competitors in outer space. In a rather ominous summary, the author asks if space will ultimately be safe for all … or for none.

Is Space Solar Power Headed for Cislunar Space?

STS097-376-019 (7 December 2000) — A close-up view of the P6 solar array on the International Space Station (ISS), backdropped against the blackness of space and the Earth’s horizon. The P6 solar array is the first of eight sets of solar arrays that at the completion of the space station construction in 2006, will comprise the station’s electrical power system, converting sunlight to electricity.

C-SBSP has long believed that space-based solar power (SBSP) hardware should be manufactured in space, away from the deep gravity well of Planet Earth. Perhaps a cislunar application for SBSP will provide the impetus needed for the United States to develop the required space-based mining / refining, space-based manufacturing and space-based assembly technologies.

AFRL Ponders Solar Power Beaming for Lunar Patrol Sat

The article, published in Breaking Defense and linked above, explains how a novel satellite might just be an early consumer of space-based solar power.

Space Solar Power Demo Headed for Orbit on X-37B OTV

The sixth mission of the X-37B Orbital Test Vehicle is scheduled to launch on May 16, 2020. As reported by Air Force Secretary Barbara Barrett, aboard will be an experiment from the the U.S. Naval Research Laboratory will transform solar power into radio frequency microwave energy which could then be transmitted to the ground. Link to the full U.S. Space Force article is below.

Hat tip to Elisa Shebaro for posting this article on her FB page and letting us know!

Encapsulated X-37B Orbital Test Vehicle for United States Space Force-7 mission (Courtesy of Boeing)

Here’s a link to an additional “X-37B’s Next Mission To Demo Space-Based Solar Power” article from the Breaking Defense website:

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.

Forbes.com article – SBSP should be a national priority

“Trump Should Make Space-Based Solar Power A National Priority”
by Bruce Dorminey, contributor, Forbes.com

Image Credit: NASA

In a recent Forbes.com article, science journalist and author Bruce Dorminey argues for the current administration to make development and deployment of space-based solar power a national priority. Read the full article here.

If President Trump were to champion space-based solar energy as a means of delivering unlimited, renewable electricity from Earth orbit, it’s arguable that his administration could leave the U.S. and the world at large with a revolutionary new source of energy.

In this advocate’s opinion, one of the most important points Dorminey makes is that ” … the fledgling space-based solar power initiative needs cohesive leadership to actively plot goals and transform it into a workable industry.” The majority of SBSP supporters have thus far focused on engineering challenges, essential to the technical “how is it done” question of space-based solar power. Two other questions, the financial “who pays for it” and the political “who gets the credit or takes the blame” must also be answered for a complete solution.

With most complex problems, the level of difficulty usually increases from the technical solution to the financial solution to the often intractable political solution. A current, complex problem to illustrate this three-pronged approach might be the ongoing battle over national healthcare. (Have even one of the three questions truly been answered yet?)

To jumpstart a U.S.-led space-based power agenda, at least three in-depth proposals for federal legislation have already been put forward:

SunSat Corporation Charter – proposed by the Space Solar Power Institute’s (SSPI) Space Solar Power Workshop, led by Darel Preble at Georgia Tech

Space Review article: Federal Legislation to Jumpstart Space Solar Power – written by Mike Snead, President, the Spacefaring Institute

D3 Space Solar Proposal – Diplomacy, Development, and Defense (D3) Innovation Summit Pitch Challenge award-winning proposal by a team of scientists led by Dr. Paul Jaffe, spacecraft engineer at the U.S. Naval Research Laboratory (NRL)

SBSP Article on HuffPo / Times of India

Reaching For The Sun (fair use)

In a March 9, 2016 article, Reaching For The Sun: Space-Based Solar Power Could Be The Answer To Climate Change, Namrata Goswami writes about the D3 Space Solar Proposal that won several top prizes for for the best ideas to advance U.S. Diplomacy, Defense and Development at the March 2, 2016 D3 Summit held in Washington, D.C.

About the idea of space-based solar power, Goswami writes:

Could this idea be as revolutionary as the Wright Brothers’ paper plane that gave us modern aviation? Perhaps!

In the rest of the article, Goswami does a good job of explaining the fundamental principles behind space-based solar power, and then she goes on to talk about Japan, China, and India already being heavily invested in the development of space-based solar power.

As noted in a 2008 C-SBSP post, 21st Century Space Race, our nation is once again behind, and once again in a position to catch up. It is a race we must lead, and if not win outright, at least cross the finish line arm-in-arm with our friends and allies.

Aviation Week Article on SBSP

European Aeronautic Defence and Space Company (EADS) subsidiary Astrium is seeking to scale up ground based demonstrations by getting public agencies and corporations interested in funding an orbital demonstration project. The company is projecting having a 10-20KW demonstrator in orbit, perhaps on the International Space Station, within five years. Astrium engineers are focusing on using infrared lasers to beam the collected energy back to the surface instead of the more traditional microwave beam approach.

This isn’t the first time Aviation Week & Space Technology has reported on space-based solar power, but it is the first time in a while and it may signify an up-tick in activities around the world.

Read the Aviation Week article by Michael A. Taverna published in the January 25, 2010 issue here.

I’ll make my plea once again … U.S. government agencies and private corporations must get on the space-based solar power development path soon or we will be left playing catch-up once again. It seems to me that Lockheed Martin Corporation is the perfect United States’ answer to EADS-Astrium’s efforts on the European continent.

SBSP on George Friedman’s Agenda

STRATFOR’s founder and CEO George Friedman discusses the push for space-based energy infrastructure after EADS, Europe’s largest space company, announces plans to launch a test satellite with solar panels. Friedman also predicted that space-based solar power will be the planet’s primary source of energy sometime in the next 100 years in his latest book by the same title … “The Next 100 Years”.

Solar Power Satellites Issue – Online Journal of Space Communication

This Issue #16 – Solar Power Satellites is the most comprehensive set of articles I have seen in one place addressing all aspects of space-based solar power.

“In this issue, the Journal advances the proposition that the next generation of satellite services will be to gather sun’s energy in space and to deliver it to earth as a clean and sustainable source of electrical power. In the 21st century, the need for alternatives to the burning of fossil fuels to generate electricity has become so great that space is now a real option.”

Ralph Nansen, author of ENERGY CRISIS: Solutions from Space, and former Manager of the Solar Power Satellite Program for The Boeing Company is the guest editor for this edition of the Online Journal of Space Communication.