by Jeff Ihnen | Apr 28, 2026 | Energy Rant
Quirky nerd alert: fans and pumps are the lungs and heart of industrial facilities. They move air, oxygen, heat, particulates, as well as cool systems and equipment. However, unlike mammals, the lungs and hearts of industrial systems and facilities do not evolve to...
by Jeff Ihnen | Mar 31, 2026 | Energy Rant
Industrial facilities love a good checklist: swap in premium motors, add variable frequency drives, call it efficiency. But when it comes to motors and drives, that plug-and-play mindset can backfire. In many cases, the difference between real savings and wasted...
by Jeff Ihnen | Aug 15, 2016 | Energy Rant
The convergence of several issues, and AESP’s Summer Conference, Technology – The Great Game Changer, gave me no choice. I have to do this – talk about the many issues involving building energy models, which are used for everything from single family homes to high...
by Jeff Ihnen | Jan 12, 2016 | Energy Rant
In recent years, there has been a push by some intervenors and program implementers to move larger and larger, and riskier measures from custom efficiency into prescriptive buckets. These include air handling system replacements, control system replacements, and of...
by Jeff Ihnen | Jul 30, 2012 | Energy Efficiency, Energy Rant
Rant fans are getting a break this week. This post exemplifies a smashing success in energy efficiency and is a bit of a spinoff on capitalizing energy efficiency as I discussed in Facility Management, Taliban Style and Better than Doritos. The story begins with a...
