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KSI SC 809 Final Project -Space Based Solar Power (SBSP) Demonstrator

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KSI SC 809 Final Project – SBSP Demonstrator Concept Origin

The concept of SBSP was proposed by Peter Glaser back around 1970 as a solar power satellite being basically orbiting a large solar panel orbiting high enough above the Earth where it would be in almost continuous sunlight. In geosynchronous Earth orbit (GEO = 24 hour period) a solar power satellite would appear stationary over a point on the Earth’s equator and would beam down power using either microwaves or lasers. On the ground the beam is converted to usable electricity by a collection system using a rectifying antenna or rectenna."Power from the Sun: Its Future", P. E. Glaser, Science, Vol 162, Issue 3856, Pages 857-861, 22 November 1968"Method And Apparatus For Converting Solar Radiation To Electrical Power“, P. E. Glaser, United States Patent 3,781,647 December 25, 1973

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Solar panels - a large flat array of photovoltaic cells

Transmitter - converts the DC power from the cells to a microwave beam or alternatively a laser

Attitude and Orbit Control System (AOCS) - the solar panel would be maintained face on to the Sun for maximum power output while the microwave antenna or laser mirror would 3-axis mounted by a robotic assemble to point constantly at the fixed location on the Earth

Ground System - either a rectenna (rectifying antenna) for microwave system or additional PV cells for laser system that ties into the electric grid on station

KSI SC 809 Final Project – SBSP Demonstrator System Components

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KSI SC 809 Final Project - Use StarTech EDDE Technology for capture of ‘scrap’ solar arrays

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KSI SC 809 Final Project –SpaceX Trunk Module Array

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KSI SC 809 Final Project –Soyuz/Progress Orbital Module Array

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KSI SC 809 Final Project – Low Earth Orbit Construction Site

Manned orbital workshop

Robotic Assembly

- Use of both manned and robotic operations as required for on-orbit assembly of transmitter and solar arrays

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KSI SC 809 Final Project – Can SpaceX and OSC reduce commercial booster cost to LEO by an order of magnitude?

Delta 4Atlas 5

Falcon Heavy

ULA Alternatives COTS AlternativesOrbital Antares

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KSI SC 809 Final Project –Transmitter (Power Beaming) and AOCS delivered in SpaceX DragonLab

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KSI SC 809 Final Project – Final Assembly on station in LEO with BA-330 habitat / DragonLab

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KSI SC 809 Final Project – boost demo assembly to GEO using EDDE technology or more conventional rocket system

Orbital Sciences ATK Star-48 solid rocket engine or SpaceX DragonLab extension module

Star Technology and Research (STAR) ElectroDynamic Debris Eliminator (EDDE) vehicle

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KSI SC 809 Final Project –DragonLab-based 3-Axis Attitude and Orbit Control System (AOCS) will keep transmitter/ panels oriented towards Earth/Sun and de-orbit at end of test

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KSI SC 809 Final Project – Ground Station and Grid Tie at Diego Garcia Naval Support Facility

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KSI SC 809 Final Project -Budget Estimate

$300M - Space platforms (not including launch costs)

$150M - Ground station and rectenna array

$50M - Contingency _____

$500M – Total budget

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KSI SC 809 Final Project - SBSP Demo

Questions?