The units are wrong – it’s 6.4 kj not mj. See the “how_will_we_get_there_from_here” doc. Also, I think in Eric’s google tech talk, he mentioned 330 hz.
Nothing seems to add up
6.4 kj * 330 hz = 2.112 MW
Lets just say the generator will produce from a few kilowatts to a few gigawatt’s. I fully understand that there can be great uncertainty ATM.
Probably much will be cleared up at the end of this year or next when unity is achieved.