Cooling Tower or Glycol option

[mechatronic]

We will be procuring three centrifugal air compressors

1. Could any one kindly advice what factors to be considered for selecting the option between Water cooling of compressors - #1 cooling tower (which will be built for cooling systems for other equipment in the plant including these compressors) or #2 Glycol system with Fin fan , exclusively for these three compressors

2. Also I need to have cost comaparison between the two options of cooling. Hence please advice how to arrive at cooling costs if a cooling tower is used

Thanks a lot,

Mechatronic