400MW using blugen - costs

units 285,714 units @ $10 k/unit = $2,857,714,000
installation 285,714 units @ $500/unit = $142,857,000
gas supply 285,714 units @ 9.5 MJ/h = 23,777 TJ/yr @ 1.57c/MJ = $373 million pa.
water 285,714 units @ 1.67 L/hr = 4.179 GL @ 0.2c/L = $8.358 million pa.
CO2 285,714 units @ 340g/kWh = 1,191,358 tonnes of CO2
maintenance $?
grid upgrades $?
stack replacements?

even at $10k per unit it will cost a fortune and chew up a massive amount of gas and water resources and pump loads of CO2 into the atmosphere. It simply does not make sense.

It will only ever be a play generator for the rich and for stupid councils trying to appear green.