Fuel cell

Battery

PV

Self-sufficient rate

Energy cost (103 JPY/year)

CO2 emission (t CO2/year)

Base

0%

294.9

4.03

FC

X

61%

392.7

3.12

FC + BT

X

X

61%

570.1

3.12

PV

X

43%

288.9

2.88

HB

X

X

101%

378.3

2.03

HB + BT

X

X

X

101%

548.4

2.10