CPC H02J 3/32 (2013.01) [H02J 3/381 (2013.01); H02J 7/0013 (2013.01); H02J 7/06 (2013.01); H02J 7/345 (2013.01); H02J 2300/20 (2020.01); H02J 2300/24 (2020.01); H02J 2300/28 (2020.01); H02J 2300/30 (2020.01); H02M 3/33573 (2021.05); H02M 7/537 (2013.01)] | 14 Claims |
1. An energy storage system, comprising:
a plurality of modules electrically connected together in cascaded fashion to provide energy for a load or grid or receive energy from a load or grid, each module having an energy source and switch circuitry to selectively connect the energy source to other modules of the system, wherein an energy source of at least one of the modules is a second life energy source.
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