by Jeff Ihnen | Oct 7, 2020 | Energy Rant
Last week in Thermal Storage for Grid-Interactive Efficient Buildings (GEBs), I introduced the importance of phase changes from solid to liquid to vapor, and the reverse, to our modern world. Benefits include heating, cooling, and refrigeration for all types of uses,...
by Jeff Ihnen | Sep 30, 2020 | Energy Rant
Aside from efficiency being a core component of my thermos-fluids courses in engineering school, phase changes were also captivating to me. Phase changes from solid (ice) to liquid (water) to vapor (steam) have been used for hundreds of years, and more recently, the...
by Jeff Ihnen | Sep 23, 2020 | Energy Rant
The batteries are coming! Maybe. I recently participated in an EPA-sponsored webinar to explore the results of a couple of case studies of lithium-ion batteries used to shave and shape building electrical loads. The technology is more nascent or even embryonic than I...
by Jeff Ihnen | Sep 16, 2020 | Energy Rant
Distributed, independent, economical, efficient, reliable, resilient, flexible, adaptable, technical, clean, redundant, modern, profitable, renewable ready, and doh, smart! What is this? A microgrid? No, it’s Michaels Energy. We’re back[1]. The Rant is back, and we’re...
by Jeff Ihnen | Mar 10, 2020 | Energy Rant
I’m not in the electricity storage business, but I can recognize lousy ideas when I see them. Grid-scale battery storage is a bad idea. It will never be anything more than a frequency and voltage regulation technology, although I have to say these are critical...
by Jeff Ihnen | Mar 2, 2020 | Energy Rant
I’ve been doing a lot of program impact evaluation for the last few months. That comes with pluses and minuses. One of the minuses is that I needed to suspend writing this blog for a while. Pluses include problem-solving, working with staff throughout our...
