As future mission objectives evolve, meeting these challenges will require continued advances in several technology categories, including… more efficient power and propulsion for all phases of the missions.

Of all the multi-mission technologies that support future missions, none is more critical than high-efficiency power systems for use throughout the solar system.

Since more efficient use of the limited plutonium supply will help to ensure a robust and ongoing planetary program, the committee’s highest priority for near-term multi-mission technology investment is for the completion and validation of the Advanced Stirling Radioisotope Generator.

The committee recommends that NASA consider making equivalent systems investments in the advanced Ultraflex solar array technology that will provide higher power at greater efficiency…

Investing in these system capabilities will yield a quantum leap in our ability to explore the planets and especially the outer solar system and small bodies.

Prior to prioritizing the level 3 technologies included in TA03, several technologies were renamed, deleted, or moved. The changes are explained below and illustrated in Table F.1. The complete, revised technology area breakdown structure (TABS) for all 14 Tas is shown in Appendix B.

Energy storage can be accomplished using many fundamentally different approaches. The current roadmap includes three: batteries, flywheels, and regenerative fuel cells. Two other approaches may also prove feasible for space applications: (1) electric and magnetic field storage and (2) thermal storage (especially for surface power applications). Accordingly, the structure for this roadmap has been modified by adding two new level 3 technologies:

•   3.2.4. Electric and Magnetic Field Storage

•   3.2.5. Thermal Storage

TABLE F.1 Technology Area Breakdown Structure for TA03, Space Power and Energy Storage

NASA Draft Roadmap (Revision 10) Steering Committee-Recommended Changes
TA03 Space Power & Energy Storage Two technologies have been added.

3.1.   Power Generation


3.1.1.    Energy Harvesting


3.1.2.    Chemical (Fuel Cells, Heat Engines)


3.1.3.    Solar (Photovoltaic & Thermal)


3.1.4.    Radioisotope


3.1.5.    Fission


3.1.6.    Fusion


3.2.     Energy Storage


3.2.1.    Batteries


3.2.2.    Flywheels


3.2.3.    Regenerative Fuel Cells

  Add: 3.2.4. Electric and Magnetic Field Storage
  Add: 3.2.5. Thermal Storage

3.3.     Power Management & Distribution


3.3.1.    Fault Detection, Isolation, and Recovery (FDIR)


3.3.2.    Management & Control


3.3.3.    Distribution & Transmission


3.3.4.    Wireless Power Transmission


3.3.5.     [Power] Conversion & Regulation


3.4.     Crosscutting Technology


3.4.1.    Analytical Tools


3.4.2.    Green Energy Impact


3.4.3.    Multi-functional Structures


3.4.4.    Alternative Fuels


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