Board Thread:General Discussion/@comment-84.46.242.52-20130127095803/@comment-6294495-20130210192940

A power farm using 6 stacks of redstone engines ( 384 )  produces 19.2 EU/t and works quite well for a quarry. This isn't max speed but it breaks a block about once every second and works about as fast ( if not faster ) than two low voltage solar arrays. Here's a screenshot.

Materials: Engines

24 stacks cobblestone

15 stacks wood

6 stacks iron

6 stacks redstone dust

6 stacks glass

Pipes:

6 wood

24 cobblestone

12 glass

1.5 stacks redstone dust