40% elec efficiency for 2.8M yen AUD 34,323.70
for decentralised power this is a winner hence market in Japan but for CO2 emission reductions Bluegen is the winner.
bluegen 60%elec eff is 100% improvement on 30%grid eff
panasonic 40%elec eff is 33% improvement on 30% grid eff
BIG DIFFERENCE
heating water from each unit is the same deal.