Lets see. I believe the exact number is 222 eu/t in my main grid.
1. I have two wind farms augmented with solar panels to hit 32 eu/t (IE, five windmills with only two obstructions crazy high up). Nighttime output is around 10 eu/t.
2. 3 sets of 4 advanced solar panels, so thats daytime output of 32 eu/t.
3. 1 set of two gregtech gas turbines running on methane of which I have a tank, so thats also providing 32 eu/t.
4. A set of three regular generators which are kept constantly full of charcoal by my golem buddies. One takes the balsa my multifarm makes, pops it into an electric furnace, and the others keep the generators full and happy.
In all of the above cases the generators feed into batboxes to provide a buffer; I usually shoot for as close to 32 as I can get, but in the last case I don't imagine I should given how stupid default generators are.
I used to utilize a two-chamber hybrid thorium/plutonium breeder reactor which output 138 eu/t, but this design was broken (or rather "fixed") by whichever gregtech version we moved to when the ultimate pack updated to 1.1.1 or 1.1.2. It's a good thing I tested it in creative ahead of time.
Powering my matter fabricator, however, I have 12 diesel generators and 16 thermal generators.
Thermal generators were deactivated when my nether pump went dry recently, and thanks to the weird effects governing lava flow, I haven't yet gone off and made a new one yet given how it randomly restarted pumping with no input from me (at least twice).
On my to-do list are a few semi-fluid generators (each produces 8 eu/t, so I'll probably set them up in fours). I just recently hit River bees in the extrabees tree; these produce clay dust. 8 clay dust can be electrolyzed into 2 sodium cells (30k eu each) and 1 lithium cell (60k eu) at the cost of maybe only 10k eu. Once I get a third river queen and give it fast work speed, I intend to automate this process with yet more golems. I'd been interested in sodium/lithium power generation for quite a while, but only with the river bees do I have a source of clay that isn't a pain to acquire.
As for my michael jacksons, I'm producing 80 mj/t. Its just 16 biogas engines running round the clock. A single small multifarm with only half the plots farming balsa trees provides enough biomass for there to be a surplus, although this might be because I use honey to amplify output.