Better Diesel

Keep in mind you can use an HV Diesel Generator for compact HV power generation. As you might expect, it produces up to 1024 EU/t. Remember that you can find the amount of energy stored in every fuel with REI.

Once you have access to processing units and highly advanced machine hulls, considering making a few Large Diesel Generators. Each of these bad boys will turn fuel into EU, up to 16384 EU/t!