Just trying new methods in fresh ultimate world.
To power my early network + basic ore processing:
1-2 combustion engine to start
Aqueous accumulator
1 BioReactor (makes biofuel with no power draw, just not efficient unless you provide many material types). You may have to update minefactory reloaded manually to get this -- don't think it is in the pack version.
BioReactor basically takes just plastic, made from smelting rubber.
I never used combustion before, so part of the reason why I am giving this path a try. It is instant on, but that cool down time to restart is a little iffy, but should be ok for typical early game usage.
Biofuel gives about 30 minutes per bucket and you get 1.4 buckets with 9 seed/plant types in the reactor. Each 1.4 buckets only uses one of each material in the reactor and it only runs when it can output. Doing all these different farm types early is a little annoying, but 45 minutes up time whenever you want is darn good early. Just needs a little automation of several farm types to run full time. Time to make a rush up the TC tech tree for golems