1 solar:
	3 coal = 9/20 UU
	3 glass = 3/8 UU
	2 circuit = 2 iron + 12 copper cable + 4 redstone
	1 generator = 8 iron + 8 cobble + 1 battery

==> 1 solar:
	33/40 UU
	10 iron = 5 iron ore = 25/2 UU
	1 battery = 4 tin + 2 redstone + 1 copper cable
	12 copper cable
	4 redstone
	8 cobble

==> 1 solar:
	13 UU
	13/40 UU
	4 tin = 6/5 UU
	6 redstone = 1 UU
	13 copper cable = 13 rubber + 13/3 copper
	8 cobble

==> 1 solar:
	15 UU
	21/40 UU
	13 rubber = 13/3 resin = 52/63 UU
	13/3 copper = 13/10 UU
	8 cobble

==> 1 solar:
	16 UU
	33/40 UU + 52/63 = (2080/2520 + 2079/2520) = 4159/2520 UU
	8 cobble

==> 1 solar:
	17 UU
	1639/2520 UU
	8 cobble