The document discusses the SPS-ALPHA concept for space solar power. It proposes building solar power satellites composed of small, mass produced components that could be assembled in space. A key element is a thin-film reflecting mirror that would collect and reflect sunlight to photovoltaic cells to generate microwave power beams, which would then be transmitted wirelessly to receivers on Earth. The concept involves developing the necessary technologies and conducting ground experiments and space demonstrations to validate the system and reduce risks prior to the deployment of operational solar power satellites.

2. Space Solar Power: SPS-ALPHA
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Artemis Innovation Management 27-March-2012
Solutions © 2012 pg. 3

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Artemis Innovation Management 27-March-2012
Solutions © 2012 pg. 4

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Artemis Innovation Management 27-March-2012
Solutions © 2012 pg. 5

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7. • None of the individual elements of the
SPS-ALPHA will be larger than ~ 150 kg,
enabling low cost through large-scale
mass production
Space Solar Power: SPS-ALPHA
Artemis Innovation Management 27-March-2012 Solutions © 2012

8. Space Solar Power: SPS-ALPHA
Artemis Innovation Management 27-March-2012 Solutions © 2012

9. Sunlight
Reflected
Sunlight
Space Solar Power: SPS-ALPHA
Artemis Innovation Management 27-March-2012 Solutions © 2012
Reflecting
Thin-Film
Mirror
Multi-Bandgap PV
Retrodirective Microwave
Wireless Power
Transmission (WPT)
Rectenna
(Microwave WPT Receiver)
Received
Power
Low-Intensity
Microwave
Transmission

10. Space Solar Power: SPS-ALPHA
Artemis Innovation Management 27-March-2012 Solutions © 2012

11. Space Solar Power: SPS-ALPHA
Artemis Innovation Management 27-March-2012 Solutions © 2012

12. Project Integration
and Reporting!
Integrated Framework
for Analysis & Modeling!
FOM Sensitivity Analyses"
International Team Members"
WP1"
Space Solar Power: SPS-ALPHA
Business Case
Development:
Terrestrial Markets and
Space Applications!
SPS-ALPHA System
Concept Definition and
Visualization!
Artemis Innovation Management 27-March-2012 Solutions © 2012
Critical SPS System /
Subsystem Mass
Estimation!
Integrated Technology
Readiness and Risk
Assessment"
Systems-Technology
Trade Space Definition!
Space Solar Power
Subject Matter Expert
Workshop!
WP3"
WP4"
WP5"
WP6"
WP7"
WP9"
WP8"
International Inputs"
WP2"
Public Dissemination of
Results"
Cost Estimation and
Economics Analysis"
Technology Options/Selection"
Figures of Merit Definition"
Definition of Key FOM Values"
A"
A"
International SSP
Concept Studies &
Expts!
WP11"
Supporting US
Experiments!
B"
B" B"
B"
WP10"
WP# = “Work Package Number”"

13. System
Segment
Selections
Definition Module
ETO
Transport
ETO
Infrastructure
ISO
Fuel-Depot
ISO
ISAAC
ISO
Servicing
WPT
Ground Rcvr
Solar Power Satellite
Platform Architecture / Systems
Integration Module
Space Solar Power: SPS-ALPHA
DRM
DRM
Artemis Innovation Management 27-March-2012 Solutions © 2012
SPS
Platform
Selections
In-Space
Transport
Future Technology Toolbox
Mechanical
Electronics
Optics
Energy
Propulsion
Intelligent
Systems
Communications
Chem Processing
Manufacturing
& Cost
Estimation
Database
MSS
Selections
HexSat
Modules
Mission
Modules
Solar Harvest
Modules
Structural
Modules
CMD/Comm
Module
Propulsion
Module
Mission
Targets
Analysis
Results
Market
Scenarios /
Schedules
Database
MCE
Selections
SAMS
Robotics
FTT
Selections
System
Sizing
Selections
TRRA
Module
TRRA
Results
STAGE 1

14. System
Segment
Selections
Definition Module
ETO
Transport
ETO
Infrastructure
ISO
Fuel-Depot
ISO
ISAAC
ISO
Servicing
Solar Power Satellite
Platform Architecture / Systems
Integration Module
Space Solar Power: SPS-ALPHA
DRM
DRM
Artemis Innovation Management 27-March-2012 Solutions © 2012
SPS
Platform
Selections
In-Space
Transport
Future Technology Toolbox
Mechanical
Electronics
Optics
Energy
Propulsion
Intelligent
Systems
Communications
Chem Processing
System
Sizing
Selections
Manufacturing
& Cost
Estimation
Database
MSS
Selections
HexSat
Modules
Mission
Modules
Solar Harvest
Modules
Structural
Modules
CMD/Comm
Module
Propulsion
Module
Mission
Targets
Analysis
Results
Market
Scenarios /
Schedules
Database
MCE
Selections
SAMS
Robotics
STAGE 2
TRRA
Module
TRRA
Results
3
4
5
WPT
Ground Rcvr
FTT
Selections

15. System
Segment
Selections
Definition Module
ETO
Transport
ETO
Infrastructure
ISO
Fuel-Depot
ISO
ISAAC
ISO
Servicing
Solar Power Satellite
Platform Architecture / Systems
Integration Module
Space Solar Power: SPS-ALPHA
DRM
DRM
Artemis Innovation Management 27-March-2012 Solutions © 2012
SPS
Platform
Selections
In-Space
Transport
Future Technology Toolbox
Mechanical
Electronics
Optics
Energy
Propulsion
Intelligent
Systems
Communications
Chem Processing
System
Sizing
Selections
Manufacturing
& Cost
Estimation
Database
MSS
Selections
HexSat
Modules
Mission
Modules
Solar Harvest
Modules
Structural
Modules
CMD/Comm
Module
Propulsion
Module
Mission
Targets
Analysis
Results
Market
Scenarios /
Schedules
Database
MCE
Selections
SAMS
Robotics
STAGE 3
TRRA
Module
TRRA
Results
WPT
Ground Rcvr
FTT
Selections
6
7
8
9

16. Space Solar Power: SPS-ALPHA
Artemis Innovation Management 27-March-2012 Solutions © 2012

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Artemis Innovation Management 27-March-2012 Solutions © 2012

18. Space Solar Power: SPS-ALPHA
Artemis Innovation Management 27-March-2012 Solutions © 2012

19. Tech C Tech A
Tech D Tech B
A B C D E
Consequence of R&D Failure
Probability of R&D Failure
(PF ~ R&D3)
5
4
3
2
1
Space Solar Power: SPS-ALPHA
(CF ~ TNV * !TRL)
Artemis Innovation Management 27-March-2012 Solutions © 2012

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Artemis Innovation Management 27-March-2012 Solutions © 2012

21. Space Solar Power: SPS-ALPHA
Artemis Innovation Management 27-March-2012 Solutions © 2012

22. Space Solar Power: SPS-ALPHA
Artemis Innovation Management 27-March-2012 Solutions © 2012

23. SPS No. 2
Year
SPS No. 1
SPS No. 1
SPS No. 2
Ongoing Operations (SPS 1 & SPS 2)
Space Solar Power: SPS-ALPHA
Cost / Revenue ($, B, ‘12)
SPS
Pilot Plant
SPS
Demos
Artemis Innovation Management 27-March-2012 Solutions © 2012

24. Space Solar Power: SPS-ALPHA
Artemis Innovation Management 27-March-2012 Solutions © 2012