Skip to main content
Tag

energy storage

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
Excess Power

Electricity Storage by the Other NWA; Chum v Beluga

By Energy Rant No Comments
Energy storage is easy and cheap. Grid-grade electricity storage is complex and expensive. Definitions of energy storage vary. Some consider hot water, chilled water, or ice to be stored energy. It’s really storing the benefits of energy consumption. For phenomenal refreshers and mental strolls down memory lane, see Storing Energy v Storing Benefits and Something Old, Something Old. Why is grid-scale electricity storage so expensive? To answer this question, let’s consider the forms of storage and the hurdles that must be overcome to make it cost effective. Electricity Storage Challenge #1 = Inefficiency First, we have the storage of potential…
Read More

Reverse Diversification Coming to a Utility Near You

By Energy Rant One Comment
In my Personal Finance class as an undergraduate, our instructor used the term diworsification for large stalwart companies. Diworsification occurs when a company buys another company it knows nothing about and isn’t complimentary to the core business. Utilities got into this in the wild west days of 1990s deregulation, buying telecommunication and even real estate companies. That didn’t end well, and they went back to their core business of the regulated monopoly.In recent years we have experienced a reverse diversification of our power supply – namely in the reliable, conventional, thermal power plant sector. We still get almost half our…
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

Utility Death Spiral? The Duck has Your Back

By Energy Efficiency, Energy Rant, Utility Stuff 15 Comments
There is weekly, if not daily, chatter about the end of the monopolistic electric utility systems we have today.  They call it the utility death spiral, and it goes like this: Distributed generation, also known as DG, which includes rooftop solar photovoltaic (PV) systems will compete directly with utility power. Utilities are stuck with fixed rate base for which they need to be paid through purchased energy from customers. Photovoltaic may produce competitively-priced energy for some customers after the bevy of incentives and tax breaks.  Home-generated electricity drives down the utility’s revenue. Utility raises prices to cover their fixed cost.…
Read More