I may point out, you'Re doing it wrong.
70% for me.
1. Copper is brown, not red.
2. Putting Watermill and Redstone in is a considerable annoyance. You name a few blocks and thus Redstone is assumed to be meant as a block too... and placed redstone does not produce EU.
3. Nuclear Reactors use Lapis, too. Advanced circuits, pretty much.
I got 70% for the same reasons.
I judged that while you can use redstone to power machines the redstone itself does not produce EU.