Category: Hydrogen

Can You Put Hydrogen in Natural Gas Pipelines? Ya, but…

Ya-but the rabbit, courtesy of Google Gemini TL&DR Summary:  sure, you can re-use an existing gas pipeline to carry some quantity of hydrogen at some pressure, and do so safely.  How much pressure and under what circumstances and operating conditions, and how much energy can be delivered via that repurposed pipe, and whether or not […]

How Green is Green Hydrogen on a Lifecycle Basis?

Image source: Google Gemini. Gemini won’t draw people, i.e. sketchy looking men in business suits, so I asked it to draw “a robot similar to Bender from Futurama”, and that did the trick. Worried about copyright? Suggest you talk to Google. TL&DR summary:    a recent paper published by Dutch researchers in the journal  Nature  Energy […]

Breakthrough in Electrolyzer Efficiency!

“FOR IMMEDIATE RELEASE This isn’t just a step forward; it’s a colossal leap towards a future brimming with sustainable energy! Our team of wizard-like scientists and technical magicians have unlocked the secrets of hydrogen electrolysis, achieving unprecedented levels of energy efficiency that were previously considered the stuff of dreams. The newly discovered process, affectionately dubbed […]

Scaling Example #2: Water Electrolysis

Scaling Object Lesson #2: Water Electrolyzers For Hydrogen Production We learned about vertical scaling in the 1st article in this series: …and about horizontal scaling or “numbering up” in the 2nd: Now we’ll use these tools to examine the scaling future of an extremely important decarbonization technology: electrolyzers for producing hydrogen from renewable electricity. My readers will […]

Are German Gas Pipelines “Fundamentally Suitable” for Hydrogen?

Update: my peer reviewed article in Energy Science and Engineering (Aug 2024) summarizes some of the points in this piece. https://scijournals.onlinelibrary.wiley.com/doi/10.1002/ese3.1861 A recent study https://www.dvgw.de/medien/dvgw/forschung/berichte/g202006-sywesth2-steel-dvgw.pdf carried out by Open Grid Europe GmbH with the assistance of the University of Stuttgart, paid for by DVGW (Deutscher Verein des Gas- und Wasserfaches- the German Association for Gas and […]