抄録
Storage battery is utilized in the grid, in the household, combined with solar power generation, fuel cell, for accumulating overpowered electricity and emitting it while it runs short. But we have very little information of energy loss with storage battery, during accumulating and emitting electricity, by transferring direct current to alternating one and reverse process. The authors have evaluated saving energy and energy loss of fuel cell and storage battery combined system. It says that not only fuel cell trait, whose efficiency is high at full load, but also storage battery trait, which loses some electricity during accumulating, emitting and transferring, should be evaluated. In addition to that, we have tried to evaluate saving energy and energy loss of solar power generation and storage battery combined system. We have got lots of information on these issues.
