RSomnambulist t1_iwpvgu2 wrote on November 17, 2022 at 1:41 PM

Reply to comment by Easypeas44 in Overhyping hydrogen as a fuel risks endangering net-zero goals by filosoful

Hydrogen leaks no matter what you do, costs a lot of energy to produce the amount we'd need, and is hugely combustible. The fact it produces only water as a byproduct is not as big a sell as you think. 1kg is about equal to 1 gallon of diesel. It costs $1.50 to produce it from NG and $5 to produce it green. Fuel cells are incredibly expensive and the vehicles will remain expensive due to the problems above. It's a viable fuel, but not for consumer vehicles.

Easypeas44 t1_iwpz8hw wrote on November 17, 2022 at 2:12 PM

There are 2 concerns that come to mind with hydrogen fuel. One being the cost of manufacturing of the hydrogen fuel cells but advancements in technology will take care of that in time. Concern #2 would be the safety measures behind putting them in vehicles, which has already been done. A hydroelectic damn or a nuclear power plant setup with a hydrogen fuel plant using electrolysis is easily attainable and would not be expensive in comparison to the infrastructure and logistics required for petroleum distillation or lithium mining for that matter. I haven't researched whether or not sea water can be used as the isotonic solution in the electrolysis process but im assuming you have a few mile markers to climb over before that is feasible, with that said, it would still be less costly to the environment and would produce far less CO2, CO or NO. In regards to renewable energy aside from it's few short comings hydrogen is the way, the truth and the light. Also, as a side note, you would likely be able to condense the exhaust from such a vehicle and recirculate the water and reuse it. The only thing standing in the way of hydrogen powered vehicles in my opinion are the dark pools of the petroleum industry.

RSomnambulist t1_iwpzx0k wrote on November 17, 2022 at 2:17 PM

You're comparing hydrogen of the future to a battery tech that will likely be replaced completely in 10 years though. Solid state batteries are already being presold. Hydrogen is inevitable but not for personal use in at least 20 years except maybe as a home fuel.

Easypeas44 t1_iwq8j0f wrote on November 17, 2022 at 3:20 PM

Its already here my friend. Watch this. https://youtu.be/Ytg23mDd1a4

RSomnambulist t1_iwq8xq9 wrote on November 17, 2022 at 3:23 PM

The infra is not. No one is rushing to build HCV gas stations like they are charging stations because the viability still isn't there for cars. As someone else said, maybe planes, but I've seen more push for SSB planes than HCV ones. That's what NASA has been testing and they have a lot of hydrogen fuel access if they wanted to go that route.