Musk finally seeing the light?9 Apr 2023 00:44
Have any of you taken a look at Tesla's Master Plan Part 3? They've finally got on board with the hydrogen electrolysis use case we've been discussing for the past few years. It'll be interesting to see how much traction this gets from this accommodating stance. Ever since Musk's "Fool Cells" jibe, the worshippers have effectively claimed that hydrogen is dumb simply because the Messiah says so, and as a result would never countenance any application of it anywhere. Presumably those same followers must now change their views...or else decide that Elon's lost his mind.
btw, he/Tesla is still not suggesting it ever gets used for direct transportation.
https://www.tesla.com/ns_videos/Tesla-Master-Plan-Part-3.pdf
Here's a snippet of one of its mentions...
"Sustainably Produce Hydrogen for Steel and Fertilizer
Today hydrogen is produced from coal, oil and natural gas, and is used in the refining of fossil fuels (notably diesel) and in various industrial applications (including steel and fertilizer production). Green hydrogen can be produced via the electrolysis of water (high energy intensity, no carbon containing products consumed/produced) or via methane pyrolysis (lower energy intensity, produces a solid carbon-black byproduct that could be converted into useful carbon-based products).
To conservatively estimate electricity demand for green hydrogen, the assumption is:
• No hydrogen will be needed for fossil fuel refining going forward
• Steel production will be converted to the Direct Reduced Iron process, requiring hydrogen as an input. Hydrogen demand to reduce iron ore (assumed to be Fe3O4) is based on the following reduction reaction:
Reduction by H2
• Fe3O4 + H2 = 3FeO + H2O
• FeO + H2 = Fe + H2O
• All global hydrogen production will come from electrolysis
These simplified assumptions for industrial demand, result in a global demand of 150Mt/yr of green hydrogen, and sourcing this from electrolysis requires an estimated ~7.2PWh/year of sustainably generated electricityh.
The electrical demand for hydrogen production is modeled as a flexible load with annual production constraints, with hydrogen storage potential modeled in the form of underground gas storage facilities (like natural gas is stored today) with maximum resource constraints. Underground gas storage facilities used today for natural gas storage can be retrofitted for hydrogen storage; the modeled U.S. hydrogen storage requires ~30% of existing U.S. underground gas storage facilities. Note that some storage facilities, such as salt caverns, are not evenly geographically dispersed which may present challenges, and there may be better alternative storage solutions.
Global sustainable green hydrogen eliminates 6 PWh/year of fossil fuel energy use, and 2 PWh/year of non-energy usei. The fossil fuels are replaced by 7PWh/year of additional electrical demand."