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53
Joined
3 yr. ago

  • That is goddamn infuriating.

  • I looked up prices in Massachusetts, they are higher than the national average. Looks like 2 main factors:

    1 A higher than usual percentage of mini splits vs central air. These will be more efficient and have a lot of comfort benefits, but are considerably pricier then retrofitting a central air system. So if you are retro fitting CA, you could come in under average.

    2 MAs impressive $10k+ incentive system for whole home heat pump systems has resulted in HVAC companies raising prices, because of course it has. This is why we can't have nice things.

  • In addition to Thejevans points, your cost estimate is very high. That cost would be in line for a geothermal heat pump, which is far more efficient. Air to air heat pumps can be installed for more like $3-10k in most residential homes. And on the higher end that is a big house that is probably saving more than $550 a year.

  • I'd say anyone choosing to drive 74mph in a 25mph zone can be said to have disregarded safety. And if you haven't realized you are going 74mph in a 25mph zone, you shouldn't have a license, let alone be an officer.

  • I am not any kind of expert either, but I have been following this company for a couple of years. If it makes it to market and is at all price competitive i can't see it not being a big deal. Granted, that is an if, not when, but they seem to be further along than most battery tech you read about.

    No rare earth metals or even nickel or copper, has a very flat degradation curve even at charge rates up to 30C (testing stopped at 3k cycles in the coin cell tests), non flammable and non toxic. The only thing you would wish for is better capacity, but it is already better than any mass produced Li ion cell, and it has a theoretical maximum a couple times that of Li ions.

  • You're right, battery news IS always breathlessly excited about the next crazy advancement, but they have a lot of things in their favor on this one. They broke ground on a manufacturing plant last year, which is not the case for most battery news stories. And the battery uses no rare earth metals, is non flammable, and performes better by nearly every metric than lithium ion. If they make it to market, I think they will absolutely be revolutionary.

  • A increasing percentage of new construction gets heat pumps. Some replacement HVAC units make the switch, but there is still a large portion of people who won't because of misinformation and/or stubbornness.

    But, unfortunately, most existing residential systems do not use heat pumps, under 20% in the US I believe.

  • They are too expensive. But only because auto manufacturers are only making midsized and larger suvs or luxury cars. The average price of an EV has dropped over 50% in China since 2015. That would have been tough for us to match, mostly because of batteries, but we could have made much more progress than we have.

    The electric grid isn't nearly as unprepared as people say. Sure, we need to build out more charging stations, but the grid as a whole far exceeds current needs. In fact, nationwide electrical usage is actually trending down in the US because of efficiency gains. Better building codes, heat pumps, LED lighting, if it uses electricity newer stuff is more efficient. If we had sold 8 times as many EVs in 2023 than we did, electricity usage would have stayed about flat.

    https://cleantechnica.com/2024/02/02/the-us-added-1-2-million-evs-to-the-grid-last-year-electricity-use-went-down/

  • Well, you are right about the subsidies and going after bigger market shares. And they may not be the highest quality vehicles, but I don't think they will be terrible either or they wouldn't hold on to the market share they gain.

    They have been making electric buses and forklifts in the US since 2009, and have a decent reputation.

  • EVs very rarely catch fire. A vehicle with a large tank of gasoline which is burned to produce power poses a much higher fire risk.

    20-60x more likely to catch fire, depending on which study you look at. My first Google result said 20x, but it was on an EV focused website, and I thought they might not be impartial. But Kelly Blue Book should be pretty good, right? Their article says 60x.

    https://www.kbb.com/car-news/study-electric-vehicles-involved-in-fewest-car-fires/

  • I think the subscription is just for the instructor led and gamified exercise routines for the indoor mode. Which is still crazy high, but the ebike and it's off grid charging work without it, it looks like.

    I was mildly amused by them saying you could earn 100% co2 free energy. With 3 hours of pedaling for a full charge, I know I'd be huffing and puffing a fair amount of co2 by the end, haha.

  • Well, as far as crash safety, I would think it would almost always safer to be facing backwards. That's the way infant car seats are. Facing backward would mean your whole body would absorb the inertia change against the seat and your head would be supported. Better than seat belt bruises and a bobble head imitation, seems like.

    That's assuming the forward facing people in the back row are buckled of course. 60 mph headbutt would be...bad. Turn those seats around too maybe?