Factory with a high unregulated energy loads- LEED EAp2

Hello, I am a beginner in LEED. I have a question regarding to EAp2. I am recently preparing LEED certificate report for a factory. However, I get a problem in achieving Minimum Energy Performance prerequisite (EAp2). More precisely, the objective of this prerequisite is to reduce building energy consumption by 18% in comparison to a baseline model. However, our proposed model only shows 12% energy reduction which is not enough to meet this prerequisite. The main reason is that the process loads are too high, which account for more than 70% total energy consumption. According to LEED Interpretation ID# 10291, for buildings where unregulated (process) loads account for more than 60% of project energy cost, the following alternative compliance path may be followed: 1. Create an energy model that includes only regulated loads and demonstrate that the project meets the minimum performance required for EAp2 by 18% energy consumption reduction. 2. Demonstrate that the proposed unregulated loads are 5% more efficient than the industry standard baseline or company average production efficiency by using the one of the three ECM approaches. → However, the explanation of document ECMs is not clear for me. Would you please give me explanation in more details how to calculate ECMs? Or what action should we take to meet this Energy & Atmosphere prerequisite for factory with such a high unregulated energy loads? In additionally, this factory will run a partial capacity of their machines. I means, for the 1st phase of operation, just some machines will be run, instead of all machines. In this case, can we get LEED certificated by calculating a part of process loads?