Orbit Options for Near-Term Space Solar Power
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Studies of space solar power (SSP) for the commercial grid have usually considered transmitting power from geostationary orbit (GEO), via microwaves at frequencies below 10 GHz, where the atmosphere is relatively transparent. Due to beam divergence from that distance at such frequencies, system sizes must be large, leading to power levels of 1000 MW or more. However, the scale of the systems, and the need to develop low-cost routine access to space, make competing with traditional energy sources challenging in the near-term. More recently, studies by the US Naval Research Laboratory have considered SSP for nearer-term niche uses in remote locations. At such locations, providing power by conventional means can be challenging. Many remote locations are typically powered by generators, which depend on fuel delivered at great cost, often through hazardous environments. Power requirements for such users range from a few hundred kilowatts to several megawatts. Furthermore, some remote facilities are at high latitudes, which are inaccessible from geostationary orbit. This presentation will consider alternative orbits. Examples of such orbits are highly inclined orbits, which may be sun-synchronous, or have a repeating ground track, or both. In addition, elliptical orbits may be considered which have relatively long dwell times over ground sites that are beneath their apogee. Since non-GEO orbits do not remain over their intended ground sites, systems or constellations, of satellites must be designed, in which beam handoffs can provide a given ground site with power much of the time, while making maximum use of the satellites as multiple satellites serve multiple ground sites.
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- Date: 18 Aug 2020
- Time: 06:00 PM to 08:00 PM
- All times are (UTC-07:00) Pacific Time (US & Canada)
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- El Segundo, California
- United States
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Dr. Charlie Jackson IEEE Coastal Los Angeles Section
- Co-sponsored by IEEE Coastal Los Angeles Section MTT-S Chapter
- Starts 20 July 2020 06:00 AM
- Ends 16 August 2020 11:30 PM
- All times are (UTC-07:00) Pacific Time (US & Canada)
- No Admission Charge
Speakers
Seth Potter of Boeing (El Segundo & Huntington Beach)
ORBIT OPTIONS FOR NEAR-TERM SPACE SOLAR POWER
See details on first page.
Biography:
Associate Technical Fellow - Boeing
Seth Potter holds Bachelor’s and Master’s degrees in Physics from Columbia University and a Doctorate in Applied Science from New York University. He is currently employed as a Principal Engineer/Scientist at The Boeing Company in Huntington Beach, California, where his work has included satellite servicing, space solar power, Mars exploration, lunar exploration, and communications satellites. He has written or co-written nearly 30 articles, papers, and book chapters in the fields of space solar power, space telescope servicing, wireless power transmission, advanced space missions, and energy.
In addition to being a member of the Board of Directors of the National Space Society, Seth Potter is Secretary of the Sunsat Energy Council, an organization that promotes space solar power, and is also a member of the Steering Committee of the NASA Aerospace Technology Working Group (ATWG). He is also a former president of OASIS, the Greater Los Angeles Chapter of NSS, and a former Board member of the New York City and Education chapters of NSS.
Agenda
Event Picture from Boeing Space Systems, posted on WWW.
Joint Meeting: