Mandatory 18% energy saving after April 2016

Thanks Marcus, that's a big challenge for my garment factory which uses evaporative cooling with cooling pad, and have a lot of process load. Basically, the proposed case ventilation has just fan and pump, no air conditioning system. What would the baseline be for my factory? Will the baseline be one of 8 systems in ASHRAE or it is simply fan and pump as my proposed case?

The water is pumped and sprayed on the top of cooling pads. The hot air outside is drawn through the wet pads, cool down, coming through the space and drawn out of the factory by exhaust fans located on the opposite wall. I don’t think the factory area is simply mechanically ventilated. I think it is likely conditioned. Since 18% saving is high enough so I really need to identify the baseline. Will it be one of 8 AC system as per ASHRAE90.1 or just fan and water pump (to spray water on the pads). Your advice on selecting baseline type is highly appreciated.