"Their desired location is typically the best place for it!"
I disagree... most of our clients are just focusing on the cost not in the functionality, operational ease, maintenance and achieving the optimum performance of these equipments. It is the engineer’s responsibility to provide a design that is best for their clients...
In utopia, your response would be understandable, and all us engineers and tech folks would be on cloud nine; more than happy to design, and design, and design until our little hearts are content that it is perfect. But, as we come crashing back to reality, all that effort takes time and money, and the design will cause project cost overruns. You have stated,
"most of our clients are just focusing on the cost not in the functionality, operational ease, maintenance and achieving the optimum performance of these equipments." Which means your design should be technically correct, e.g. safe and not cause damage to equipment, and most importanty, make the client happy. They are not interested in functionality, because no matter how operationally perfect you think it is, if the client is not happy in the end (in your case low cost) you will not have them any longer.
So, in utopia, you will want to build a separate control room adjacent to the equipment, with at least 3 engineer computer work stations ($5000 each), and a 50" wall monitor$$$$$. The engineers desk will run you at least $15,000-$20,000 with chairs and accessories. Add HVAC, dimmable lighting, a bathroom(s) (his and hers), a sink, refrigerator microwave, etc. You will want to have a window overlooking the generators for viewable observation of the units.I'd say 20' x 20' might work.
The O&M folks will be exstatic, the architect, will s*** a load of bricks then start laughing, and shortly after, most likely your firm will be relieved of it's design duties. The new firm hired to take over then designs the equipment as cheaply as possible, and the Owner is happy again, and the architect love them. Unfortunately, your firm now has a bad reputation for not listening to the client and having cost overruns; nobody wants to hire you.
The guy with the money always wins!:grin: