by Jeff Ihnen | Dec 2, 2024 | Energy Rant
This week, we capitalize on last week’s basics of tire rolling resistance, how it translates to passenger vehicle fuel economy, and non-Newtonian and non-linear nuances. Tires by the Numbers Figure 1 shows the nameplate for one of my tires. Left to right: M+S...
by Jeff Ihnen | Nov 25, 2024 | Energy Rant
Back in the day, when I interviewed engineers for potential employment, I would ask what they’ve done in their lives to study and reduce energy consumption. As an example, this week, I nerded out on tires. As an efficiency nut and passionate driver of our curvy...
by Jeff Ihnen | Nov 19, 2024 | Energy Rant
The race is on to decarbonize the grid, and those states that are forcing it too quickly are seeing soaring electricity prices. This is fabulous for our industry because energy efficiency and load management have become much more cost-effective. But are higher prices...
by Jeff Ihnen | Nov 12, 2024 | Energy Rant
Two weeks ago, I described the chasm before mass-market electric vehicle adoption. The chasm, as shown in Figure 1 and depicted in the EV Rant as a moat, is the gap between enthusiastic nerds and mainstream curmudgeons. I’m often among the mainstream...
by Jeff Ihnen | Oct 28, 2024 | Energy Rant
In September, I wrote a series of five Rants on data centers, a concise and comprehensive collection that might just be the Data Center Digest you never knew you needed! Chip and server power density, cooling, and projected GW load growth. Data center facilities...
by Jeff Ihnen | Oct 22, 2024 | Energy Rant
A recent study, Stacked Energyscapes, led by professors at Loyola Marymount University and Penn State University, caught my eye. The paper describes webs of complexities associated with transitions from fossil-fuel-powered economies to clean-energy economies. I...
