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this is ~2 year old info from a presentation I can't dig up quick, but iirc the numbers were roughly $4 - 5 per kg of green hydrogen from western PEM systems, a
by cagenut 2y ago
this is ~2 year old info from a presentation I can't dig up quick, but iirc the numbers were roughly $4 - 5 per kg of green hydrogen from western PEM systems, and about $1 even for grey hydrogen (steam reformed nat gas).
at the time rumor had it that the chinese alkaline systems were producing green hydrogen for $2 - 3/kg
the inflation reduction act put some monster subsidies in place that added up to something like $3 or $4 per kg, so effectively they were trying to force the economies of scale by moving the price drops forward several iterations.
of course the new administration is already ripping apart that legislation, so its doubtful much of that will pan out now (if you ever thought it would).
in the meantime, the price of a kwh of wind/solar has continued to decline rapidly, so the original $4-5 estimates can be reasonably eyeballed down to $3 - $4 now. still not enough, but in a decade it might be.
of course as with all of climate change economic math, so long as pollution is free its difficult to cost compete with.
- boringg 2y agoPretty sure the hydrogen market shook out really hard when nothing significant came about the massive infusions of money during the zerp years. Hydrogen is and will remain a relatively niche player given its use case (industrial) and complexity of managing. Wish it were different.
- cagenut 2y agoI'd be interested to know what massive infusions during zIrp you're talking about, I'm not familiar with any (r&d stuff sure). the IRA would have been a massive infusion, but it passed in '22, after the rate hikes (its how/why it got its dumb name). Even still most of its effects were convoluted tax credits that are difficult to model investment risk on right now (putting it nicely).
- BobaFloutist 2y agoI don't know why it only just now occurred to me to wonder how you measure the KG of something lighter (less dense) than air. I know mass is not the same measurement as weight, but we still mostly use weight to measure mass, don't we? Obviously this has already been solved for helium, but is it just measuring volume and converting? Or pressure level in a known volume? Or I guess if you pressurize it enough it'll be more dense than air. What a fun problem!
- rawgabbit 2y agoI believe they use flow meters and convert that to kg. https://www.rheonik.com/company/h2-filling-stations https://www.rheonik.com/company/h2-filling-stations FYI from searching the internet and asking chatgpt, I came up with these rules of thumb regarding BTU equivalency: 10 gallons of California RFG gasoline is equivalent to 10 kg of hydrogen 12 CCF natural gas 9 gallons of low sulfur diesel 330 kWh of electricity The efficiency between internal combustion and BEV are of course dramatically different.