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Michael DiTullo @d2lo.bsky.social

This is hard for people to understand. Generating electricity and moving it over power lines into a battery to be used in an EV motor is just very efficient. Extracting/refining gas, putting it on a boat, then truck, then exploding it in a car where 80% becomes waste heat is very inefficient.

aug 24, 2025, 9:18 pm • 37 3

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Abigail Dombey @abigaildombey.bsky.social

Yup, exactly.

Gasoline powered vehicle: Around 80% of the energy is lost to various inefficiencies 100% of original fuel 75-84% of original energy is lost 68-72% Engine losses 4-6% Parasitic losses 3-5% Drivetrain losses 0-2% Auxiliary electricity use 16-25% of original energy goes to wheels Data from FuelEconomy.gov Image by Karin Kirk for Yale Climate Connections Electric vehicle: Around 11% of the energy is lost 100% of original fuel 31-35% of original energy is lost, but 22% is recaptured 10% charging loss 18% Drivetrain losses 22% Energy re-captured by brakes and fed back to battery 3% Power train cooling and steering 0-4% Auxiliary electricity use 87-91% of original energy goes to wheels Data from FuelEconomy.gov Image by Karin Kirk for Yale Climate Connections
aug 24, 2025, 9:34 pm • 164 59 • view
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Michael DiTullo @d2lo.bsky.social

I love these visuals! Thanks for sharing. Those are great.

aug 24, 2025, 10:11 pm • 5 0 • view
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Abigail Dombey @abigaildombey.bsky.social

They are, aren’t they!

aug 24, 2025, 10:37 pm • 3 0 • view
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vriesk (Jan Srz..) @vriesk.bsky.social

FWIW, this is less abysmal for diesel engines.

aug 25, 2025, 10:22 am • 0 0 • view
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vriesk (Jan Srz..) @vriesk.bsky.social

Also, this ignores heating issues with EVs in colder climates - for ICE it's just the waste heat that gets recycled, for EVs either you drive cold or use up precious energy to heat yourself (hopefully with the AC unit acting as a heat pump, but still).

aug 25, 2025, 10:24 am • 2 0 • view
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Robert R @corsair321.bsky.social

This is a red herring. The energy required to heat (or cool) the interior is a tiny fraction of total.

aug 25, 2025, 12:08 pm • 3 0 • view
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vriesk (Jan Srz..) @vriesk.bsky.social

No, it's not. That really depends on the outside temperature and your personal comfort zone. E.g. this site estimates some 15% efficiency loss in -7°C even with a heat pump: motorwatt.com/ev-blog/howt...

aug 25, 2025, 1:13 pm • 0 0 • view
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Robert R @corsair321.bsky.social

15% of a small amount is not a significant difference. Quoting from the article: However, modern EVs equipped with advanced thermal management systems can maintain up to 97% of their range even in sub-zero temperatures.

aug 25, 2025, 1:29 pm • 0 0 • view
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vriesk (Jan Srz..) @vriesk.bsky.social

No, that's not "15% of a small amount", that's 15% or so of the range, which is rougly the same as the percentages on the picture. 97% is quite great indeed, but almost unbelievable TBH. Also, it's stated for 0°C, not -7.

aug 25, 2025, 1:43 pm • 1 0 • view
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Robert R @corsair321.bsky.social

Gas cars throw away 60% energy every single day. EVs lose 15% on the one coldest day of the year. I live in Toronto and I lose more energy cooling my EV in August than I lose heating it in January. And that’s because I’m lazy.

aug 25, 2025, 2:06 pm • 0 0 • view
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Andy @ab-initio.me.uk

Prerty sure that is accounted for in the visuals…

aug 25, 2025, 10:48 am • 6 0 • view
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Jonathan Cullen @jovicu.bsky.social

📌

aug 25, 2025, 10:07 am • 2 0 • view
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Aki Kivirinta @akikivirinta.bsky.social

Stealing these.

aug 25, 2025, 10:08 am • 4 0 • view
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Traci Birge @traciinfinland.bsky.social

This is really interesting. thinking for a while what to do vehicle-wise, esp bc our old ethanol conversion on gas doesn't seem to work anymore. Always had old cars Don't drive every day 1 big trip/month (c. 350 km 1 way) Low winter temps & snow Semi-regularly tow trailer Maybe biogas (used car).

aug 25, 2025, 11:16 am • 1 0 • view
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Grumpy D. Kelson @grumpykelson.bsky.social

When the solid state batteries show up here, that kind of range will just not be anything you will think twice about.

aug 25, 2025, 11:26 am • 0 0 • view
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Traci Birge @traciinfinland.bsky.social

yes, looking forward to better solutions. But, the fact is that the most I've ever paid for a car is still under 3000€, so I'm obviously not a person who will buy a new EV unless it is what I want: no frills, long range & long lasting, handles cold climate, reasonable corporate responsibility.

aug 25, 2025, 11:33 am • 1 0 • view
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Abigail Dombey @abigaildombey.bsky.social

If not now, then wait a few years and there’ll be a great range of second hand EVs which can meet all your needs (including cost).

aug 25, 2025, 12:31 pm • 3 0 • view
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Abigail Dombey @abigaildombey.bsky.social

How many miles a year do you do?

aug 25, 2025, 12:32 pm • 1 0 • view
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Traci Birge @traciinfinland.bsky.social

We have biogas made of waste products, but no new biogas cars being brought into the market in EU. The secondhand market has high availability, so that's on my radar for now. I think many people here outside of cities would be more inclined to hybrids bc reasons I listed + crisis preparedness.

aug 25, 2025, 3:35 pm • 0 0 • view
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Abigail Dombey @abigaildombey.bsky.social

Biogas is outdated tech - that’s why there’s no new biogas vehicles on the market. But EVs are brilliant for crisis preparedness! They can power homes for days if not weeks!

aug 25, 2025, 3:45 pm • 3 0 • view
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Traci Birge @traciinfinland.bsky.social

Yes, this is a good point! OTOH, not sure how great they are in an evacuation-due-to-invasion situation, and that is probably the main crisis people are thinking about in this neck of the woods.

aug 25, 2025, 3:47 pm • 1 0 • view
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Abigail Dombey @abigaildombey.bsky.social

If you’ve got home charging and solar panels, then your car would be charged up virtually all the time.

aug 25, 2025, 3:49 pm • 1 0 • view
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Traci Birge @traciinfinland.bsky.social

honestly, I don't know. Don't drive that much and not every day (not necessarily even every week), but I have those long trips. One issue is style of EV cars. Little shopping baskets or expensive sports cars. Need a basic, affordable wagon that also pull a trailer and has a good range.

aug 25, 2025, 3:23 pm • 1 0 • view
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Graeme Cobb ⚡️🚙🚗⚡️ @graemecobb.com

MG 5 has proven to be a reliable wagon. There are two battery sizes: 52.5 kWh which were later upgraded to 61 kWh. I’d recommend the latter.

aug 25, 2025, 9:48 pm • 2 0 • view
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Traci Birge @traciinfinland.bsky.social

Wagon style is popular in Finland (and probably other parts of Europe) as a practical design. But that's not really what's on the market in EVs, unfortunately. Skoda says they are planning some Fabia-Octavia style EV, but I don't think they have it, yet.

aug 25, 2025, 3:31 pm • 0 0 • view
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Abigail Dombey @abigaildombey.bsky.social

The Skoda Enyaq is pretty nice - though no idea about its towing capabilities. Likewise the MG5.

aug 25, 2025, 3:33 pm • 1 0 • view
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Abigail Dombey @abigaildombey.bsky.social

@graemecobb.com is brilliant at suggesting EVs to meet people’s needs.

aug 25, 2025, 3:34 pm • 2 0 • view
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Traci Birge @traciinfinland.bsky.social

Agree- it's about the closest I've seen for us, but.. we have 2 everyday cars: ethanol converted Skoda- cost under 3000€ several years ago, Berlingo diesel cost 500€ last year. Enyaq starting 45 000 € 😂. So, it's just a different world.

aug 25, 2025, 3:44 pm • 0 0 • view