Life-cycle costing (LCC) is an often-used term in the pump industry, but one that rarely is implemented at the end-user level. Industry continues to use the same design criteria and specifications that have been in place for years—specifically, over-sizing of pumps, motors and valves. Energy costs won't allow us to continue down this expensive path. LCC will become the rule rather than the exception around companies that want to remain profitable—or in business.
Interestingly, LCC is one of the most effective tools you can use to justify—and convince management to pursue—energy savings projects. Sometimes called Total Cost of Ownership (TCO), this methodology takes into account the following items when evaluating equipment and/or projects:
(More information on conducting LCC analyses is available online through any number of Websites. For example, to calculate the LCC of a pump, visit www.pumpsystemsmatter.org)
On the other hand, you can't get your arms around LCC without fully understanding your utility costs— and you can't measure them unless you know how to calculate your true cost of energy.
A typical U.S. industrial electric bill will include the following information required to calculate an operation's true cost of energy:
The following equation can be used to calculate most any U.S. industrial electric bill:
Incorporate this equation in your LCC analysis. Don't forget to take into account non-energy benefits:
Capturing the benefits
You can learn a lot through an LCC analysis (and the analysis of your true cost of energy). Use it for the good of your operations. Learn and speak the language of management. Appeal to management's profit motive. Relate savings to the plant's bottom line. Whatever you do, remember that big money really talks!