Traditionally, Specifying must have requirements, and Purchasing the specified product are main consecutive stages while procuring most industrial systems.
UPS market price study, by UPSonNet contradicts assumed Price to performance or cost to size correlation. Thus, specifying the simplest and smallest system doesn't ensure lowest cost. Adding a Cost Oriented Reevaluation (COR) stage, can boost significantly ROI; always of prime importance, particularly with present economy
Three dominant UPS types are offered by manufacturers. The Off-Line type solves outages and short-term grid disturbances;
In the process of checking the pros and cons of On-Line versus Line interactive UPS for a particular project, http:www.upsonnet.com UPSonNet found that some On-Line systems were cheaper, compared to equivalent Line Interactive types. Deeper investigation, suggested that the assumption of constant Price to Power ratio should also be questioned.
This led to performing a study of North American voltages UPS Prices from small 350VA size systems up to 120kVA installations. The research was based on market prices, of main brands like APC, Powerware, Tripplite as well as smaller good standing companies, and filtering the results by a weighting factor representing supplier's market share.
The study violates the assumption of performance to price or size to cost correlation. A better UPS may cost less, while significantly higher power may have a slight effect on price. Market prices are affected by numerous factors, such as, technological innovations, strength and preferences of individual producers, popularity of certain power levels or certain brands, and more. Therefore, no price logic is obeyed when individual systems, are concerned.
Research results call for additional Cost Oriented Reevaluation Stage, before the specification is confirmed and forwarded to purchasing department. The COR stage should investigate alternate solutions, and modify UPS specification for getting superior technical performance and better economical outcome.
Guiding steps on UPSonNet's site, direct users How to Use UPS Price List to gain significant advantages. COR implementation enables, to achieve such benefits as system upgrading, extending output power, increasing back up time, introducing redundancy, and more, while decreasing system cost sometimes by almost 40%.
