Skip to main content

HVAC design

Energy Management System – Not Another Litter Box

By Energy Efficiency, Energy Rant No Comments
In recent weeks, I have been spending considerable time examining energy management system projects for energy efficiency program evaluation on the east coast.  My conclusion is this: blown opportunity abounds. The program documentation for one particular project drips with evidence that the project is a free rider, which means the project would have happened anyway in absence of the program.  How do I reach this conclusion?  First, the calculation methodology could work if the user knew what they were doing, but it is clear they either don’t know what they are doing or don’t care to get it right –…
Read More

The End of Lighting

By Energy Efficiency, Energy Rant 4 Comments
Believe it or not, I did not have a rant topic in mind going into Saturday morning – my rant writing time.  But the fog burned off quickly as a topic came into view – one that arose during the prior week.  Incidentally, I once heard a “meteorologist” instructor say he always scolded his students for saying fog “burns” off.  Instead, they should say the fog lifted.  What?  Fog is suspended water droplets, not vapor.  Water vapor in air, or as steam, is invisible.  When fog “burns off,” it changes from visible water droplets to invisible vapor, so while “burn…
Read More