I get this a lot, and I am sure APC says to buy 1 large unit. They always recommend the most expensive option.
APC and other tech people approach it as a technical decision. Yes, one flawless unit that never fails that is supplied by two power inputs like this 30kva unit recently sold is great. One central unit simplifies design, management and looks cool.
But...
I approach the decision as a small business owner and a guy that signs the checks.
Price – Two 5000va units cost $2200. One 10,000va costs $2600. (actually I need to raise that price more to make my point clearer)
Flexibility and Growth – Having two offers more configuration options. Further as you grow, you can upgrade in stages … like buying another 5000va unit.
