It doesn’t have potential. It’s possible, but not practical. Using hydrogen for transport is snake oil - there are plenty of other industrial uses that should have much higher priority.
In order to meet the global industrial demand with green hydrogen, we would need to dedicate 3x the global renewable generation capacity from 2019 entirely to hydrogen production. That simply isn’t going to happen - and that’s just trying to deal with demand where there are no other options but hydrogen. If you start adding transport the demand will sky rocket. This is great for those in the business of selling hydrogen, terrible for everyone else.
Hydrogen is also an incredibly inefficient fuel, both in terms of burning it and in terms of energy cost to produce.
Methane is also not exclusively extracted through fracking. You’re minimising the negatives of hydrogen and sensationalising the competition.
The other advantage of SLS is that these rockets are owned by the people, not private companies.
Yes because Boeing are totally a company for the people, they never take advantage of government contracts and always stay within budget.
Say what you will about SpaceX and the issues with the private sector and publicly traded businesses, SpaceX have revolutionised the rocket industry and driven costs down.
You’re not being honest if you argue from the assumption that the green Hydrogen for space flight is coming from Earth.
Remind me again, where is SLS taking off from? Who’s the one not being honest in their argument here?
Go suck Elon’s dick elsewhere.
Wow. You’re not worth speaking to.
You’re not being honest…
This is an ad hominem. Please, be nice here…and thank you for apologizing to @TWeaK@lemm.ee.
I mean, we’re talking about hydrogen for rockets here which is an absolutely tiny portion of global fuel consumption, wether or not we should be using it for anything else and the costs and scale of doing so is neither here nor there. ( Personally I think hydrogen powered cars are dumb)
In the context of rocket science hydrogen is just a better fuel in absolute terms. It is ~25% more efficient than methane. It’s less dense and thus needs larger tanks, but due to the square cube law that matters less and less the larger the rocket is, so on particularly large rockets like those going to the moon, hydrogen is just flat out better and leads to smaller less costly rockets if done properly.
The problem is that Boeing has been holding nasa hostage and extracting ransom, I don’t think nasa should be reliant on private companies for it’s rockets, they should have a internal department that develops and builds boosters in a similar way to how JPL works with probes and rovers. It would be costly upfront for sure, but would save money in the long run since it would prevent private companies from exploiting public interests in the future.
The SLS isn’t owned by the people ether, not really anyways, all the infrastructure and production lines are owned by Boeing which is just as bad as any of the new companies.
Personally I think NASA should just have an internal booster production team/facility like they do with rovers and probes through JPL.
It’s ludicrous to me that the consensus coming out of the space shuttle program and SLS that nasa’s designs were blamed for cost when the cost mainly came from choices made by private interests and contractors.
I hadn’t heard that take before… very interesting to learn of the influence Boeing has on NASA.
Natural gas can be green too. You can extract it from landfills or from bioreactors of organic waste.
But still… you’re burning hydrocarbons so you end up producing a lot of CO2 which is going straight into the atmosphere. That’s not what I’d call super green.
It’s carbon that’s already part of the carbon cycle. Like burning wood or consuming food.
The carbon to worry about is the stuff we’re extracting from underground.
