Ethylene

Ethylene is a Gas from Mekanism whos Primary function appears to be Fueling a Gas Burning Generator for power, Currently this appears to be the largest supplier of energy per burn (Current tests show slightly over 6 Seconds for 1.2Million RF)

What you Need:
To build an ethylene farm you will need:
 * 1x Forestry farm
 * 15x15x2 Lit Space (sunlight will Suffice - Torches/glowstone will work if the sky is unobtainable)
 * a Permenant water source
 * Jumpstart Power Supply (enough to run the machines and farm for 1 cycle)
 * 2 Chests (or 1 chest and a bin)
 * 1x Gas Burning Generator
 * 1x Crusher (Factory will be overkill)
 * 1x Pressurized Reaction Chamber (PRC)
 * 1x Electrolytic Separator
 * Plumbing
 * Cabling
 * Item Routing Pipes
 * Forestry Fertilizer
 * Dirt
 * Crops (carrots recommended but any seed veg will do)

To Start
Clear a 15x15 area and place the farm down in the center, connect this to a chest with fertilizer, dirt and your choice of crop, route an item duct (in this example we'll be using Logistical Transporters from Mekanism) from the farm back to this chest, near Farm center, place down the Crusher, PRC and Electrolytic Separator, The positioning of these 3 is important, the Crusher Must be on the Left and the Electrolytic on the right with the Farm Behind them with atleast a 1 block gap, in this gap place a chest/bin, infront of the PRC place the Gas Burning Generator, Connect Item Ducting from the Farm Chest to the Crusher

Configure
With everything in place, setup the configs on the machines so that the Crusher will accept input from the Chest and output into the PRC (Remember to Auto-Eject) the Electrolytic Separator will automatically feed Hydrogen out to the left and Oxygen out to the right - if you have no use for oxygen set this to dump, Configure the PRC to accept Items from the Left (Crusher) and output to the back (Chest/Bin) and remember to "Auto Eject" click the warning Icon that should say Gases and configure for "Right" and "Front" Cable all these machines up and connect to power, make sure you connect power to one of the Faces of the Gas Generator as this will then allow the system to become Self Sufficient (its advised but not required to have an energy cube or 2 to separate the Farm from the rest of your grid)

Plumbing
Plumb the water from the source into the Farm, PRC and Electrolytic Separator, When Powered and Plumbed in the Electrolytic Separator should Kick in and start converting Water into Hydrogen and oxygen which will be fed into the PRC the farm should begin converting a 15x3 Ring around itself and begin planting crops, if you didnt put enough produce in to fill the farm off the bat don't panic, when the farm harvests it will feed itself and the crusher to plant more produce

Running
So long as everything is connected correctly you should now be able to walk away, the Farm will auto harvest and feed the crusher which will inturn feed the PRC with Biomass to be converted with Hydrogen from the separator into Substrate (used for making Plastic) and Ethylene, which is then pumped into the Hydrogenny to power *Everything*,

Any questions?