Process Energy for Manufacturing facility

I have seen several posts pertaining to process energy and how it should be modeled, but I am still unclear as to how it should be treated pertaining to manufacturing process energy. I am modeling a manufacturing facility, an estimated 80% of the energy consumed is done so by equipment that is used to manufacture a product. ASHRAE 90.1 states that the provisions of the standard do not apply to "equipment and portions of building systems that use energy primarily to provide for industrial, manufacturing, or commercial processes" meaning that those processes are not regulated as a part of ASHRAE 90.1. The LEED NC reference guide defines process energy on page 258 and uses the language "...but not limited to..." perhaps intending to encompass other sources of process energy? My question is, in order to adequately model the aforemnetioned manufacturing facility for LEED NC, do I have to model the process energy used in manufacturing processes? i.e. (process boilers, process cooling equipment, presses, curing systems, presses...etc) Or can I simply omit this process equipment and model the building as any other building, with standard process loads for the space type and include all equipment regulated by ASHRAE 90.1? If modeling manufacturing process energy is required, what are acceptable means for developing a baseline for the process energy, outside of metering each piece of equipment in an existing facility?