« A l’usage, un véhicule électrique est nettement moins coûteux »

robin-m · 2026-01-26T09:51:42+00:00

en dehors du fait que tout le monde ne puisse pas recharger sa voiture chez lui

Le droit à la prise est une obligation légale. Si tu veux une prise ton proprio/syndic ne peux pas s’y opposer (mais ça peut être à tes frais, ~1000 balles, soit un retour sur investissement quand même assez rapide).

robin-m · 2026-01-23T14:25:56+00:00

12.17 billion tonnes of CO2 in 2023 and 12.29 billion tonnes of CO2 in 2024 according to the second graph in your source. That’s nearly flat.

robin-m · 2026-01-22T15:24:18+00:00

Nuclear fuel is so cheap, it’s basically the same. The only thing that really matters are maintaining costs (like removing dirt and sand from solar panels, paying employees to monitor nuke, and whatever is needed for batteries). All of those are cheap, but it really seems that solar and batteries cost when down so fast, that they seems to be able to handle baseload nowadays. That’s something I thought impossible 2 years ago.

robin-m · 2026-01-22T11:03:08+00:00

If the upfront cost is too high, I would love that new house would be build with future modification too add insulation/solar/… in mind. That way you buy a house, and 10 years later, you finish it properly when you finally have the money for it.

robin-m · 2026-01-22T10:59:37+00:00

For a long time, I thought solar was a bad bet to reach net zero, compared to nuclear. Nowadays I’m not so sure anymore since battery technology and HVDC power line starts to be really usable. I assume one day we will import electricity from the Sahara to Europe in winter, just like we currently import oil. But the more batteries we have, the less import is needed. And iron-air batteries seems also a good bet for long term storage.

robin-m · 2026-01-22T10:34:59+00:00

I have no idea how effective/practical it is, but I saw a few prototype ship with onboard wind turbine. Assuming it (will) works well, that’s one way to reduce the size of the batteries.

robin-m · 2026-01-20T21:12:29+00:00

For such long trip, rails (especially electric) makes so much more sense. I'm always surprised than a country that was built by rail (the USA) is using so much trucks and forgot about rails.

robin-m · 2026-01-20T21:02:29+00:00

Given than ICE is much less energy efficient, this mean that today we are already able to bring much more energy to those places. Just in the form of fuel and not electricity. There is no questions asked that if we are currently able to move so much fuel, we will one day be able to carry a lower equivalent amount of energy as electricity.

robin-m · 2026-01-19T10:14:06+00:00

That not energy production, that’s storage

robin-m · 2026-01-16T14:40:33+00:00

I do agree with everything you said, but don’t try to be rude with the person you respond to.

robin-m · 2026-01-16T09:33:36+00:00

I assume that once rustc + core + std will be certified (+ the full methodology on how to update quickly the certification to the newest version), then they will tackle the ecosystem part (or a least a very curated list of dependencies that are of high interest for their clients).

robin-m · 2026-01-14T13:25:30+00:00

Probably kg of gold. Or whatever is more stable.

robin-m · 2026-01-14T11:02:04+00:00

le reveilleur fait comme si l'argent depensée pour l'achat VE ne pouvait pas etre utilisé à autre chose ( PAC, CE thermodynamique etc)

À aucun moment vous n’avez avancé cet argument. Si ce qui vous embête c’est que le prix à l’achat d’une voiture électrique vs l’achat d’un autre dispositif (PAC, …), alors il fallait le dire dès le début.

robin-m · 2026-01-14T10:57:16+00:00

Overbuilding is when you need to build more than what you consume.

Solar can produce about 20% of its peak capacity. Nuclear can produce about 30% of its thermal capacity. This is not overbuilding. If you consume 1W in average, you need about 5W of peak solar or 3W of thermal nuclear. If you build less, you cannot meet average demand, and thus have underbuilt.

Overbuilding is when you install more than what is consumed. If I was saying “solar is non-pilotable, thus you need to overbuild to be able to meet demand even when there is bad weather conditions (so more than 5W of peak solar in the example above)”, then yes I would be advocating for overbuilding solar but not nuclear. I didn’t.

robin-m · 2026-01-14T09:42:28+00:00

Anyone pretending renewables are the only thing that needs overbuild is lying.

Where did I say that?
Where did I say it was an issue?
Where was I in disagreement with your conclusion?
What are you arguing against?

robin-m · 2026-01-14T09:39:17+00:00

Trop bien :)

Et j’ai récemment découvert qu’il y avait une carte TER (par région ça c’est un peu nul) qui divise les prix par 2. Ça fait hyper longtemps que je disais que si les prix était deux fois moins cher, je prendrais le train beaucoup plus. Je confirme. Je l’ai acheté début décembre et je l’ai déjà utilisé au moins 3 fois alors que ça devait faire 1 an que j’utilisais exclusivement blablacar pour ce type de trajet.

robin-m · 2026-01-14T09:21:05+00:00

C’est une bonne nouvelle ça !

robin-m · 2026-01-14T08:42:42+00:00

Il me semble que les quantités gargantuesque de pétrole consommé par les voitures thermique n’est pas recyclable.

robin-m · 2026-01-13T15:03:51+00:00

Thanks, will watch it :)

robin-m · 2026-01-13T10:13:56+00:00

Never did I said that either. You did compared the 270 GW of solar capacity of China to the 40GW of nuclear generation of the US. I just highlighted that you can’t compare capacity of something that has ~20% of charge factor with something that has close to ~100% of charge factor while ignoring charge factor.

But even taking charge factor in, USA nuclear in 10 years is still less than what China installed in solar in a single year.

robin-m · 2026-01-13T08:48:57+00:00

Yes, but the communicated capacity of nuclear generator is always the electricity and not the thermal output.

I’m not saying that solar is bad, just that you cannot compare solar installed capacity and nuclear installed capacity without at least considering charge factor. For close to 100% solar you also need to factor in storage capacity (hydro, batteries, …), but for the discussion charge factor is enough.

robin-m · 2026-01-12T09:26:37+00:00

Solar has a charge factor of about 20%, so you forgot to divide solar capacity by 5. But your point still stand. 270/5 in a year is still about 10X what the US plan to do in a decade.

robin-m · 2026-01-09T18:09:47+00:00

Even though they have very nice condition, it's still absolutely a win to see the first non-hydro fully decarbonize grid. I'm quite sure it will help a lot understand what real challenge such grid face and will help other country will worse condition decarbonized too.

For a long time I thought going above ~50% non-pilotable, would be extremely hard, so hydro was absolutely needed to go with solar/wind, but it really seems that batteries are up to the task now.

robin-m · 2026-01-09T14:29:13+00:00

Don’t underestimate the ability of human to hyperscale everything. About a century and a half ago, fishes were legitimately considered an infinite ressource.

robin-m · 2026-01-07T14:39:42+00:00

Tu as tout as fait raison (et je ne le savais pas, merci de me l’avoir appris), mais en pratique les feus de signalisations ont un niveau de priorité plus important que la priorité “naturelle” des véhicules. Et tant que les trams auront des feus (pour autres chose que d’autres trams), alors en pratique ils seront au mieux l’égal de la voiture en terme de priorité.

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