Flywheel Energy Accumulator Concept: Demonstrate on-board flywheel energy storage subsystem as one potential component of an SSP architecture. Demonstrator would be deployed in LEO - 500-600 km altitude, inclination = 97.5 degrees Key Features: Flywheel Energy Storage to accumulate 12 hours of power for delivery during a 2.5 minute pass (twice daily) Suggestor/Source: Research Institute of Machine Building, Kaliningrad, Russia Discussion This concept represents a Soviet version of an SPS-2000 type project, but selects on-board power storage with 2 power dumps daily during ground station overflights. Power is accumulated using a 15 ton flywheel system. The reference paper considers both dynamic and photovoltaic variations. References: Y.S. Mozjorine, et. al.. Small-scale space power station: feasibility and usage prospects, SPS 91, Paris, 1991. Advantages Disadvantages Early demo concept Minimizes PV requirements Requires both space and ground storage High capital cost per watt/hr Flywheel mass and maintenance issues
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