• 6 Posts
  • 461 Comments
Joined 3 years ago
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Cake day: November 8th, 2021

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  • fossil fuel power plant are tops 40% efficient while ice powered cars are around 33%.

    If you power you EV off a fossil fuel power plant, then that difference, minus the grid losses, the charging losses and then the inverter and motor losses, is how much co2 emissions you are saving.

    Of course that’s assuming your driving habits don’t change, with that high upfront investment and relatively lower per mile costs compared to using gasoline.

    And that’s not to mention the one time emission from the production of that EV amortised on its 15 year hoped-for lifetime.

    Beside capturing government subsidies and the arbitrage saving from using temporarily cheaper electricity as fuel, I don’t see EVs making much sense either from an economic or a saving the planet standpoint.

    Without a zero emission energy production as the source, EVs don’t make sense beyond hype and cope.

    All fossil fuel electrical generation, and that includes natural gas, has to be shutdown. Or else it will not make a lick of difference.












  • On the other hand. Actual ham radio needs exotic and antiquated equipment, and for all of that you will get a clunky walkie-talkie that can’t do the walkie part and has extremely limited bandwidth, that would collapse if even 0.1% of the population tried using it.

    If you do have all the gear and license and just tried to find how to send even 2400 bits per second to another ham radio operator, it would take weeks just to find one another and setup this feat of engineering.

    Modulations are obsolete, not even QAM64. There has been no attempt beam forming on HF so there is only very few channels that can be used concurently.

    All in all it’s like CB but with extra steps.

    A hobby, not a reliable, practical method of mass communication and very stuck in its ways where preserving the spectrum is more valued than communication.