And also, the US DOE has training for specific systems (eg Steam, Compressed Air...). Here's the site:
http://www1.eere.energy.gov/industry/bestpractices/training.html
Look into AEE, Association of Energy Engineers, for training and certification.
A few thousand dollars will get you well on your way to being a CEM, Certified Energy Manager.
Thank you for your responses.
Chris Conley - From the data that we logged, the compressor is normally 100% loaded when loaded, except for a brief period when the chiller first starts up. Then it operates well into its service factor.
Mint Julep - I have not been able to track down any...
It is a 40 ton, air-cooled recip. The brand name is Refrigerated Systems of Evansville. The model number is a bit problematic. I have been trying to get it, but I don't know if that's possible.
Is it safe to say that a chiller is at 50% of its capacity if the compressor is loaded 50% of the time? This comes from data logged in one minute intervals where the results showed the compressor was loaded every other minute. Any input would be helpful.