Skip to main content
Tag

thermal energy

Electricity Rates and Reliability – Access and Policy

By Energy Rant No Comments
For 50 years ending in 2000, electrical loads in the United States expanded at an average of 5.1% per year. For the next 20 years, the growth was essentially zero. Projections for the coming five years are roughly 1% per year (compounded annual growth rate, CAGR). Although that is far from 5% CAGR, it is more than zero, and considering construction of everything from generation to transmission lines is on the decline, something must give. For example, transmission line construction fell from 4,000 miles per year in 2013 to less than 1,000 miles from 2016-2020 to a measly 55 miles…
Read More
Elephant On 3 Legged Stool with Money on his back surrounded by powerlines

Rising Price of Less-Reliable Electricity

By Energy Rant No Comments
“Americans used to spend little energy worrying about whether the lights would come on at the flick of a switch, or how much that electricity cost. For a growing number of people, those days are over.” Those are the first two sentences of an article published in The Wall Street Journal last week, Get Ready to Pay More for Less-Reliable Electricity. Other nuggets from the article: Customers of the largest 17 utilities in the country are bound to see electricity prices outpace the consumer price index through 2030. Over the ten years ending in 2022, outages increased by 20%. The…
Read More
RTO and ISO Map

Good, Perfect, and Real Carbon Targets – Part 3

By Energy Rant No Comments
In this week's Energy Rant, we're covering part three of good, perfect, and real carbon targets.In Part I of this series, we examined how various storage technologies work, their pluses, and minuses. In Part II, we put numbers to generation and storage technologies, including maximum power, duration of discharge (for storage), cost per megawatt and megawatt-hour to build and operate, and a slew of other great stuff. In Part III, we will size up the numbers from Part II to actual grid demand. The objective is to provide scale to see what we would need to pair high percentages of…
Read More
construction cost

Good, Perfect, and Real Carbon Targets – Part 2

By Energy Rant No Comments
In this week's Energy Rant, we're covering part two of good, perfect, and real carbon targets.Last week we looked at grid-scale energy storage options for a couple of them, namely hydrogen and flywheels; I asked, “What could go wrong?” To be fair, my comment on hydrogen was its use as a buoyant gas to float the Hindenburg. Hydrogen, while very light, is explosively combustible, so putting it in a blimp was crazy. I always like to throw factoids in for budding STEM enthusiasts. Take a helium (non-combustible) balloon on a string, hold it by the string in a moving vehicle.…
Read More
Gas Turbine Generator

Good, Perfect, and Real Carbon Targets

By Energy Rant No Comments
I recently delivered an electrification presentation for Wisconsin Public Utility Institute’s Energy Utility Basics course. While introducing myself, I said, "I’m an engineer, and I can’t help it." I also said the answer to the question, “Can we ___?” is always, “Yes, it’s just a matter of money.” That led me to briefly discuss politicians, with no background in the subject, declare that “we” (state, city, etc.) will be powered by 100% renewable energy by 2050. The universe is between here and there. When I hear that renewable electricity is cost-competitive with conventional sources like combined-cycle natural gas or even…
Read More

Phase Change Materials for Grid-Interactive Efficient Buildings (GEBs)!

By Energy Rant No Comments
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, including space conditioning, food storage and transportation, healthcare, manufacturing, and of course, thermal storage. The simplest everyday thermal storage material is ice. Grocery and convenience companies have enormous ice-making facilities for guess what: thermal storage and your lowly Igloo or swanky Yeti coolers. I have a Coleman Lil Oscar cooler that I’ve used since Ha School. Now that is…
Read More

Energy Storage v Storing Energy’s Benefits

By Energy Efficiency, Energy Rant, Renewable Energy, Sustainability, Utility Stuff 4 Comments
As we march along with the nation’s rather massive build-out of renewable energy resources, questions emerge for how to fill the gaps when the sun sets and the wind stops blowing – i.e., when it’s nice to be outdoors, especially in the summer.  So there you have it – turn off the lights, grab a drink and go out on the deck to hang out with your friends and family.  Now there is a behavior program to get behind!  Patent underway.  Unfortunately, the discussion is focused on energy storage rather than “quality time”, a term that predates “work-life balance”. Once…
Read More