Hi! I've been playing the Feed the Beast map and just did a worksheet on the MV Solar Array costs, as in materials needed to make one. Is anyone math-magically inclined enough to see if I didn't forget anything? I just hope it's clear enough how I progressed downward breaking up each component into it's raw materials until I could add it all up. It's pretty scary. 
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MV Solar Panel
8 LV Solar Panels + 1 MV Transformer
( 8 Solar Panels + 1 LV Transformer ) * 8
64 Solar Panels
8 LV Transformers
1 MV Transformer
1 MV Transformer = 2 copper cable + 1 machine block
1 LV Transformer = 2 copper cables + 3 copper bars + 2 copper cables + 4 wood planks
1 solar panel = 3 coal dust + 3 glass + 1 generator + 2 circuits
1 generator = 8 cobble + 5 iron + 3 refined iron + 1 battery (4 tin, 2 redstone, 1 copper cable)
MV Transformer raw materials
2 Copper Cables
8 Refined Iron
LV Transformer raw materials
24 Copper bars
32 Wood Planks
16 Copper Cables
Solar Panel raw materials
192 Coal Dust
192 Glass
64 Generators
128 Circuits
Generator raw materials
512 Cobble
320 Iron
192 Refined Iron
64 Batteries
Battery raw materials
256 Tin
128 Redstone
64 Copper Cables
Circuit raw materials
768 Copper Cables
128 Refined Iron
256 Redstone
Raw Material Totals
24 Copper Bars
32 Wood Planks
848 Copper Cables (142 recipies, 3 copper and 6 rubber each, 426 copper (7 stacks), 848 rubber (14 stacks))
192 Coal Dust (3 stacks)
192 Glass (3 stacks)
512 Cobble (8 stacks)
320 Iron
328 Refined Iron (648 (10 stacks + 8 total Iron, 328 of it cooked)
256 Tin (4 stacks)
384 Redstone (6 stacks)
I'll even point it out to my (admittedly small 
) LP audience in the next video. This is pretty neat. 