Not fireball if you seen his twitch series he still don't have enough power on forgecraft
A few weeks back on the server series, Direwolf was building his reactor, and according to some spreadsheet calculations Fireball said that he found that a 7x7 with 5 fuel rods and diamond blocks for cooling were in the "sweet spot" which produced more power with lower fuel cost... somewhere around 21,000 RF/t. and he also has a similar turbine setup.
Dire implemented the reactor in this episode and has since added the turbine. He also went on to create a Computercraft program that adjusts the reactor and the turbine to keep the turbine spinning at a relatively constant speed around 1800 rpm.
[edit] Feel sorry for Fireball... His batteries at his "ground" base are kept constantly charged and are capable of producing 11.1 billion RF/t, poor guy