Technology

60112 readers

3800 users here now

This is a most excellent place for technology news and articles.

Our Rules

Follow the lemmy.world rules.
Only tech related content.
Be excellent to each another!
Mod approved content bots can post up to 10 articles per day.
Threads asking for personal tech support may be deleted.
Politics threads may be removed.
No memes allowed as posts, OK to post as comments.
Only approved bots from the list below, to ask if your bot can be added please contact us.
Check for duplicates before posting, duplicates may be removed

Approved Bots

founded 2 years ago

MODERATORS

475

Hydrogen locomotive (www.money.pl)

submitted 1 year ago by [email protected] to c/technology

165 comments fedilink hide all child comments

First hydrogen locomotive started working in Poland.

you are viewing a single comment's thread
view the rest of the comments

[–] uis 3 points 1 year ago

It's not green since most of it is produced from fossil fuels.

Dear Faust, it's them again. Them who say "electricity is not green since most of it is produced from fossil fuels"

It's also disgustingly expensive even compared to fossil fuels

Hydrogen is mean of storage, not source

it takes something like 3-4x the energy to produce, store, transport, and convert back to energy as just charging a battery.

Ehhh. 60% efficiency means 1.6x the energy to produce. And battaries are transported too.

In the case of trains it seems more sensible to manufacture biodiesel or synthetic fuels than this. It's certainly safer to transport and store. Perhaps existing trains can be converted relatively easily. Or electrify the train line or stretches of it.

Electrify? Yes! Everything else? Meh.

Or even put solar on carriages to reduce fuel consumption during daylight operations.

Small area, create drag, may be even energy-negative. Worse idea than hydrogen storage.