Category Archives: Batteries

Heavy-duty hydrogen fuel cell trucks a waste of energy and money

Posted on July 30, 2020 by

Preface.  Hydrogen fuel cell trucks are incredibly inefficient. Turning hydrogen back into electricity with a fuel cell is only 24.7 % efficient (.84 * .67 * .54 * .84 * .97) as shown in figure 1. There are multiple stages … Continue reading →

Posted in Batteries, Electric Trucks, Electric trucks impossible, Hydrogen | Tagged , , , , , | 3 Comments

MIT: Why the electric-car revolution may take a lot longer than expected

Posted on February 22, 2020 by

Preface. This study from MIT explains why price parity of electric and gasoline vehicles is likely to take a lot longer than 5 years, and perhaps never if cars continue to depend on lithium-ion batteries. Deeper cost declines beyond 2030 … Continue reading →

Posted in Automobiles, Lithium-ion | Tagged | 5 Comments

EV cars only go half as far in freezing weather

Posted on July 29, 2019 by

Preface.    Below freezing, li-ion batteries don’t perform as well.  Consumer reports found that about half the driving range was lost.  Perhaps this is why nearly half of PHEV/BEV vehicles are sold in balmy California, while the half of the states … Continue reading →

Posted in Automobiles, Lithium-ion | Tagged | 5 Comments

Utility scale energy storage has a long way to go to make renewables possible

Posted on May 15, 2019 by

What follows comes from my book “When Trucks Stop Running: Energy and the Future of Transportation” , which is also where you’ll find the references backing up what I’ve written below. I often get letters from people about energy breakthroughs … Continue reading →

Posted in Alternative Energy, Batteries, Battery - Utility Scale, Critical Thinking, Electric Grid, Electricity, Renewable Integration | Tagged , , | 7 Comments

Why aren’t there battery powered airplanes or flying cars?

Posted on March 13, 2019 by

Preface.  Batteries are too heavy for airplanes to get off the ground. Though that hasn’t stopped people from trying: Norway’s new electric plane crashes during demo flight (Robitzski 2019) The two articles below explain why. Alice Friedemann   www.energyskeptic.com  author of … Continue reading →

Posted in Batteries, Energy | Tagged , , | 5 Comments

Can Zinc batteries save us?

Posted on February 17, 2019 by

Preface: The New York Times had two articles about zinc air batteries in September 2018.  Right now, finite natural gas is the dominant way of balancing unreliable, outright missing, or intermittent power from wind and solar.  So other energy storage … Continue reading →

Posted in Batteries, Energy Storage, Lithium-ion | Tagged , , , , | 2 Comments

Want to go off-grid? You might need hundreds of Tesla batteries

Posted on February 4, 2018 by

Preface. Although you may not be as far north as Victoria, British Columbia (48.4 latitude), you’d ideally want to be at 30 degrees or less latitude from the equator to even consider the expense of off-grid solar power.  And even … Continue reading →

Posted in Batteries, Photovoltaic Solar | Tagged , , | 11 Comments

Given the laws of physics, can the Tesla Semi really go 500 miles, and what will the price be?

Posted on November 21, 2017 by

Preface: Most people think that electric truck makers need to tell us the specs — the battery kWh, price, performance, and so on — before we can possibly know anything about their truck. But that’s simply not true.  We know … Continue reading →

Posted in Electric Trucks, Electric trucks impossible, Fuel Efficiency, Lithium-ion | Tagged , , , , , , , , | 16 Comments

Anyone who whines about airplanes should have to take the Oregon Trail

Posted on June 20, 2017 by

Source: Book cover of “Oregon Or Bust: True Short Stories from the Descendants of Oregon Trail Pioneers, Prospectors, Trappers, and Settlers in the Great Northwest Hardcover” by Gentry Ward Cutsforth (2012), XLibris. [ In addition, I recommend the Louis CK … Continue reading →

Posted in Airplanes, Lithium-ion, Transportation | Tagged , , | 3 Comments

How are energy storage batteries coming along? U.S. House hearing 2015

Posted on April 5, 2017 by

[ My favorite quotes from this U.S. House of Representatives session: THOMAS MASSIE, KENTUCKY. I want to say this has been a very enlightening hearing, and it confirms my personal experience, which is batteries are not sexy. Buckets of acid … Continue reading →

Posted in Batteries, Energy Policy, Energy Storage | Tagged , | Comments Off on How are energy storage batteries coming along? U.S. House hearing 2015