My customer like many is now concerned with energy usage (this is good for me) and has commmissioned me to develop opportunities with the control system to save money.
How do I correctly calculate electrical usage costs on equipment? For example I have four 120 ton rooftops that are 93kw (480 x 195amps). These RTU's control a common space and a lead / lag control sequence is being developed. Can I factor in maintence related cost savings because of less runtime?
Appreciate any ideas..