[Hugh R]

The p traps are around $12,000 each.

I was wrong, they are Cummins and John Deere.

Someone at the organization (it's a very small elementary school district) who doesn't know anything about generators asked Cummins to do something, and they offered to sell them 4 $12,000 load banks and 4 p-traps, the load banks do nothing to reduce HP, and they were an additional $12,500 each.

Larry: here is the info from the descriptions on the Air Permits:

Cummins Model No. 4BTA3.9-G5, four cyl. 99 BHP, turbocharged, after cooled No. Serial No. at this time.

Cummins MModel 4BT3 3-G2 Serial No. 68011959 82 BHP

John Deere 4 cyl tubrocharged Model No. 4045TF150 110 BHP No Serial No.

Cummins Model No. 4Bt3.9-G4 Serial No. L00185069 4 cyl turbocharged 102 BHP

I will contact Cummins, but in looking at the permits I see three of them would have to have their BHP reduced by 50% or so. That may not be obtainable. Since I don't know generators, as Larry said some of them run 30,000 PSI on the injection which to me is amazing. I just want to be able to talk to Cummins intelligently about options.

My understanding is that any modifications to get under 50 BHP must be "real, quantifiable and permanent". John Walker, you are correct in that they look at the model and what the State and local agency will require and that is generally it, unless you can demonstrate a real, permanent drop in BHP.