Sorry, but you are still not being clear.
It sounds to me that you have an existing facility, and you are building an addition to it. It also sounds to me that there is an existing 800 amp service disconnect, and that it provides power to two existing panels, and that each of these two existing panels is rated for 800 amps.
What I don?t know is what is being added, in terms of new load. You said they were adding 15,000 square feet, but you didn?t say how much load is being added. For all I know, there is a pottery workshop off one of the side corridors, and it has a dozen large kilns. Or perhaps all that is being added is lights and receptacles. Or perhaps there is a new kitchen to serve food during basketball games. You didn?t describe the results of the load calculation, other than to suggest that the engineer performing the load calculation made an error.
My questions:
1. Did I correctly describe the existing facility?
2. Was a load calculation performed for the new addition?
3. What was the error to which you referred?
4. What is the problem that needs a solution?
5. Are you suggesting that the utility be asked to provide a new service of 2000 amps, in addition to keeping the existing service of 800 amps?
You have to help us understand, or we won?t be able to help you. Remember that we have not seen this building, nor the load calculation, nor the proposed new service. All we know is what you tell us.
