this post was submitted on 11 Feb 2024
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What? Of course you can store power for weeks. It doesn't just dribble out onto the floor. Go away for a month and come home, your EV is still sitting there with the battery charge whatever you left it on.
Yes, EVs use their stored energy for driving... I'm not sure what your point was there. Do you think transporting hydrogen is free and doesn't cost energy?
I've parked mine outside in the Australian summer. It didn't magically lose energy. The battery is a dense insulated brick on the bottom of the vehicle, so it doesn't really get hot enough to need cooling even when it's 40C / 104F and you park in the sun.
You can drain the battery in a few weeks, but you need something running like Sentry Mode consuming power.
So, let's say I leave an EV at the airport, with 60% charge, battery in reasonable health, and return 2 months later and head home, having lost maybe 3%. You are telling me that's....not doing exactly what you're saying I can't and didn't just do?
You don't also immediately lose all the stored energy either. In a (hypothetical, future tyme) properly kitted out scenario, I leave my EV plugged in at the airport and it's battery contributes to local grid storage while I'm away. So the 60% I arrived with might drop down during high load, but since my utility company has a handy app I can schedule when I need to unplug and ask for the charge percentage to be topped up in time.
I might even not have to pay to park my car in that scenario, or potentially even earn credits back...
Explain to me what hypothetical means to you. Then re read my post and note where I point out the hypotheticals.
And you definitely would not lose 30-40%. I'd meet at 8-10% but you are either inexperienced with the tech or shilling an agenda with that 30-40%.
But what would me and my actual lived experience know right?
That's more an issue with hydrogen than it is with EVs. Hydrogen is very leaky.
Boil off from liquid hydrogen is still an issue as of 6 months ago:
https://www.hydrogeninsight.com/innovation/solving-the-liquid-hydrogen-boil-off-problem-us-awards-48m-towards-h2-research-and-development/2-1-1522238
Rio Tinto's scientist puts the boil off of hydrogen at about 1% per day in storage tanks.