sustainability.stackexchange.com/questions/5297/… seems to be a troll of the "I am just asking" variety. Seems uninterested in working towards an acceptable answer, just in nit-picking. So thanks @EnergyNumbers for closing that.

Although FWIW I found the incoherent use of units in the question amusing when the OP immediately started hammering on tiny issues with the answer. "I have no idea how the metric system works and don't care whether I'm using the right units, but your answer must be exact"... yeah, nah. The correction kinda spoiled that.