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Your question, and the EMS programming, is in regards to HVAC system operation. I assume by "Electric Equipment" you mean the HVAC system and not the zone electric equipment. Your EMS program simply enables the system to operate via the availability schedules. These schedules control the availability of the components, not their performance. In this case your expectation is that the components will run at full capacity when they are available, this is not actually the case. In your input file, the performance of these components is controlled based on the set point managers. The coils are still trying to meet a load and that load is varying since SetpointManager:SingleZone:Reheat is being used. This SPM calculates a temperature required to meet a zone load. If you want the coils to turn on at full capacity when available, use scheduled SPM's to place a very low/high temp at the outlet of the cooling/heating coil (use 2 SPM's). Then when the coils are "available" they will try to meet a very high load (via the temps at the outlet nodes which is what controls the performance).