I was happy to share it with him. As long as he doesn’t make a mess he’s welcome back anytime.

You stay away from my tree.

Okay, but this application only requires 1.9MWh on board. That would be about 57kg of hydrogen. The required capacity would actually be less since the hydrogen refuel time should be significantly less than recharging a battery. Anyway, I just doubt very much that 11,900kg storage vessels and fuel cell would be required. There’s simply less dead weight in a hydrogen vehicle as well as better performance and less externalities associated with battery production and disposal/recycling.

As for the efficiency of hydrogen production and delivery, it shouldn’t matter. We need to produce it anyway for emissions free steel and fertilizer production. The real problem is that we don’t have enough emissions free energy production, which isn’t one that battery vehicles or storage facilities solve. The current paradigm is one of deficit in order to create a market and I think battery storage unfortunately facilitates that. Instead, we need to build out capacity so that there’s almost always a surplus of electricity with the extra getting diverted to hydrogen production. It should be rare that the process is reversed to turn hydrogen back into electricity for the grid. That hydrogen is currently too expensive is the result of bad policy, which BEVs just reinforce.

I meant apart from the hydrogen fuel costs. It’s not obvious to me why the labor and maintenance costs of hydrogen powered mining vehicles wouldn’t be greater than that of the battery powered versions and the attendant charging/battery swapping equipment.

Why would the operating costs be higher?

Ah you’re right. Assuming an energy density of 160 Wh/kg that’s still almost 12,000kg. That much hydrogen contains about 400MWh.

A 240 tonne battery? That’s almost 240 tonnes less payload. They should make one that runs on hydrogen or ammonia.

This is how Willy Wonka’s Great Glass Elevator worked!

Cool.

I prefer “Yankees”.

Thank you!

Mechanical engineer here self-hosting my own Lemmy and Pixelfed instances in a Yunohost VM on an old Ubuntu box. It just feels better being my own admin.

I finally started on a project to improve the flowerbeds in front of my house. I removed the arborvitae and whatever was growing on the ends, replacing them with chaste tree shrubs. I also planted a line of bee balm in front. Hopefully they all take!

HB really requires hydrogen, which typically comes from fossil fuels. However, with some policy changes the hydrogen for ammonia production could come from GHG free sources instead.

Isn’t this the case for most of the ammonia based fertilizer used in all types of farming?

Doesn’t hydroponic farming already solve the weed problem without herbicides?

I think Yunohost is great. It was easier for me to set up that trying to figure out Docker. I run a few sites including AdGuard Home as well as personal Pixelfed and Lemmy instances with it in a VM on an older Ubuntu box. That said, I’m stuck on Lemmy 0.18.2 without pict-rs because the update script to the latest version available on Yunohost (0.18.3 with pict-rs) is broken. Oh well!

Ah, thanks!

Thanks!

One more reason that transitioning the car fleet to BEVs is a bad idea.