KETEP 세계에너지시장정보

Abbreviations .......................................................................................................................................... 5 

1. Introduction ..................................................................................................................................... 8 
 1.1 Portfolio composition ................................................................................................................ 9 
 1.2 Vision and objectives to In Space Solar Energy Harvesting (ISSEH) ......................... 10 
 1.3 Governance structure .............................................................................................................. 13 
 1.4 Portfolio synergies “Collaboration matrix” ........................................................................ 14 

2 Portfolio Working Groups .............................................................................................................. 14 
 2.1. Working Group 1 - Solar Cells .............................................................................................. 15 
  2.1.1 WG 1 Objectives ..................................................................................................................... 16 
  2.1.2 WG 1 State of the Art - Solar Cells .................................................................................... 16 
  2.1.3 WG 1 GAPs- Challenges/Opportunities - Solar Cells ................................................... 19 
  2.1.4 WG 1 Portfolio Innovations ................................................................................................. 20 
  2.1.5 Conclusion and Recommendations WG 1 Solar Cells ............................................. 21 
 2.2 Working Group 2 - Wireless Power Transmission ............................................................... 22 
  2.2.1 Main Objectives of WG2 ....................................................................................................... 23 
  2.2.2 WG 2 – WPT State of the Art ............................................................................................... 23 
  2.2.3 Review SoA for microwave (MW) technology ............................................................ 24 
  2.2.4 Review SoA for optical technology ............................................................................... 26 
  2.2.5 Space-Based Advancements .......................................................................................... 26 
  2.2.6 Terrestrial and Subaquatic Applications ..................................................................... 27 
  2.2.7 LPT Applications in Space .............................................................................................. 27 
  2.2.8 WG2 WPT – Key Challenges ........................................................................................... 28 
  2.2.9 WG2 GAPs – Challenges/Opportunities ...................................................................... 28 
  2.2.10 WG 2 WPT Portfolio Innovations ................................................................................. 30 
  2.2.11. Conclusion and Recommendations WG 2 WPT ..................................................... 31 
 2.3 Working Group 3 - In-Space Green Propulsion .............................................................. 32 
  2.3.1 WG 3 - Objectives .............................................................................................................. 32 
  2.3.2 WG 3 - State of the Art ...................................................................................................... 33 
  2.3.3 WG 3 - GAPs- Challenges/Opportunities ..................................................................... 35 
  2.3.4 WG 3 - Portfolio Innovation & Activities ...................................................................... 40 
  2.3.5 Conclusions and Recommendations of WG3 ............................................................ 41 
 2.4 Working Group 4 - System Engineering ........................................................................... 41 
  2.4.1 Innovation for IOD/IOV – mass volume/power/budget ............................................. 42 
 
4. Need for new R&I developments ................................................................................................. 45 

5. Future In Space Solar Energy Harvesting Use Cases ........................................................... 46 

6. “Bottom-up” Roadmap ............................................................................................................... 48 
 6.1 Innovation Timeline ........................................................................................................... 48 
 6.2 Portfolio Innovation & Commercialisation Synergies ..................................................... 51 
 6.3. Lessons Learned .................................................................................................................... 52 

7. Conclusions .................................................................................................................................. 54 

References ............................................................................................................................................. 56 

Annex: Future “Use cases” for In-Space Solar Energy Harvesting ....................................... 59 
 Introduction to WG Use Cases ..................................................................................................... 59