BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/Los_Angeles BEGIN:DAYLIGHT DTSTART:20200308T030000 TZOFFSETFROM:-0800 TZOFFSETTO:-0700 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:PDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20201101T010000 TZOFFSETFROM:-0700 TZOFFSETTO:-0800 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:PST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20200819T051234Z UID:028AE365-1DE8-4706-BC5C-B3FDDB057B5B DTSTART;TZID=America/Los_Angeles:20200818T180000 DTEND;TZID=America/Los_Angeles:20200818T200000 DESCRIPTION:Online Event!\n\nPlease register so we can send the meeting ID and password.\n\nStudies of space solar power (SSP) for the commercial gri d have usually considered transmitting power from geostationary orbit (GEO )\, via microwaves at frequencies below 10 GHz\, where the atmosphere is r elatively transparent. Due to beam divergence from that distance at such f requencies\, system sizes must be be large\, leading to power levels of 10 00 MW or more. However\, the scale of the systems\, and the need to develo p low-cost routine access to space\, make competing with traditional energ y sources challenging in the near-term. More recently\, studies by the US Naval Research Laboratory have considered SSP for nearer-term niche uses i n remote locations. At such locations\, providing power by conventional me ans can be challenging. Many remote locations are typically powered by gen erators\, which depend on fuel delivered at great cost\, often through haz ardous environments. Power requirements for such users range from a few hu ndred 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 orbit s are highly inclined orbits\, which may be sun-synchronous\, or have a re peating ground track\, or both. In addition\, elliptical orbits may be con sidered which have relatively long dwell times over ground sites that are beneath their apogee. Since non-GEO orbits do not remain over their intend ed ground sites\, systems or constellations\, of satellites must be design ed\, in which beam handoffs can provide a given ground site with power muc h of the time\, while making maximum use of the satellites as multiple sat ellites serve multiple ground sites.\n\nCo-sponsored by: Coastal Los Angel es Section APS Chapter\n\nSpeaker(s): Seth Potter\, \n\nRedonod Beach\, Ca lifornia\, United States LOCATION:Redonod Beach\, California\, United States ORGANIZER:c.jackson@ieee.org SEQUENCE:3 SUMMARY:Orbit Options for Near-Term Space Solar Power URL;VALUE=URI:https://events.vtools.ieee.org/m/235875 X-ALT-DESC:Description: <br /><p>Online Event!</p>\n<p>Please register so w e can send the meeting ID and password.</p>\n<p>Studies of space solar pow er (SSP) for the commercial grid have usually considered transmitting powe r from geostationary orbit (GEO)\, via microwaves at frequencies below 10 GHz\, where the atmosphere is relatively transparent. Due to beam divergen ce from that distance at such frequencies\, system sizes must be be large\ , leading to power levels of 1000 MW or more. However\, the scale of the s ystems\, and the need to develop low-cost routine access to space\, make c ompeting with traditional energy sources challenging in the near-term. Mor e recently\, studies by the US Naval Research Laboratory have considered S SP for nearer-term niche uses in remote locations. At such locations\, pro viding power by conventional means can be challenging. Many remote locatio ns 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. Furth ermore\, some remote facilities are at high latitudes\, which are inaccess ible 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 ti mes 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 g iven ground site with power much of the time\, while making maximum use of the satellites as multiple satellites serve multiple ground sites.</p> END:VEVENT END:VCALENDAR