Category: Climate change
US Lobby’s $1.1 Trillion Freight Rail Electrification Study Intentionally Asked The Wrong Question
Direct electric freight rail is not speculative technology. It already operates across enormous railway systems, moves very heavy freight and works in difficult climates. The interesting North American question is therefore not whether electric freight rail can work, but where catenary should go first, where batteries or dual-mode locomotives make … [continued]
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IFA Berlin Recap Part 1: Diverse Approaches To Sustainability
IFA Berlin, which stands for “Innovation For All,” is a diverse technology show. There were numerous mobile, entertainment and AI-enabled devices, but there were also a range of clean technology products. On the first day of IFA, I saw several different paths to sustainability. Products from large companies and small … [continued]
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Hydrogen Learning Curves Are Counting The Wrong Doublings
Hydrogen cost forecasts often borrow one of the clean-energy transition’s most useful empirical tools: the experience curve. If a technology has historically fallen by a given percentage in cost every time cumulative deployment doubles, analysts can estimate how many doublings lie ahead and compound the learning rate into a future … [continued]
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Hydrogen Kept Failing The Test — And Getting Another Test
In 2023, a senior executive responsible for decarbonizing a major transportation company asked me, with some exasperation, what drove the “madness on hydrogen.” Hydrogen proposals kept arriving for applications where the energy balance and economics looked dreadful. That conversation became What Drives This Madness On Hydrogen?, an attempt to explain … [continued]
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Federal inspectors say Palisades failed to follow regulations on radiation exposure
The Nuclear Regulatory Commission said the violations were of “very low safety significance” but the company said it’s taking the problem seriously.