• 5 Posts
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Joined 3 years ago
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Cake day: June 18th, 2023

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  • All I know is that our panels, our battery, and out inverter are all from China, because nothing else delivered anything near similar value.
    Our neighbor ordered a system from a contractor that made a total (and more expensive) upgrade of the entire energy system of the house, including air to water heat pump, and his panels are Chinese too, which I know because I saw them before they were mounted.
    He paid about 50% more than we did, and it was still Chinese panels.

    Hyundai makes good value panels too that were available from the same contractor, that could also have been a good choice, but we went with the Chinese panels because they were almost 30% better value.

    Everything else was about 50% more expensive!!!


  • We have 2 pretty big installations a few kilometers from where I live, I’ve never heard any noise from them.
    Silicon panels do not contain cadmium, and the amount of lead is microscopic, and probably less than what would be contained in the different substances used to maintain a normal field of crops, and certainly less than what is used over 20 years, that is the minimum durability for even cheap solar panels. Panels that are based on Cadmium are no longer used. (Except maybe in USA?)

    I have no idea why there would be lithium batteries that leak into the groundwater? Lithium is also not really toxic except above pretty high levels, and is already naturally in the groundwater in most places.
    In fact I live in the place in Denmark that has the most lithium in the groundwater, and I have never heard it mentioned as a problem. We can drink tap water without issue, and it’s even rated as way higher quality than bottled water.

    https://www.freeingenergy.com/are-solar-panels-really-full-of-toxic-materials-like-cadmium-and-lead/

    Even for the panels that use Cadmium, the Cadmium is encapsulated, and even in extreme landfill conditions, very little of it escapes into the environment.

    this is not conspiracy level stuff here

    Wrong, it absolutely is. it’s decidedly insane. I have never heard anyone here make any of those claims here, and I live in the best area of Denmark for solar power, so we have more solar power here than anywhere else in the country. We also have people that are a bit out there, but luckily they are not that far gone.


  • The county’s medical director has claimed that large solar facilities are a potential health risk for residents.

    That is outright insane. The article goes more into why he/she is saying that:

    the county’s medical director who, in a memo, warned of the threat of noise, visual pollution and potential sources of contamination.

    So how does a perfectly stable construction create harmful noise? I bet it makes less noise in the wind than trees do.
    And if visual pollution is harmful, USA sure has a major problem, because I’ve never been anywhere with more visual pollution than USA.
    Advertising everywhere, insane light pollution, even just the wires hanging in the streets, that should have been dug down since the 60’s. Cities have little architectural regulation or plan, and shopping areas are a complete mess of either clashing architectures or just but ugly concrete buildings.
    And WTF is he on about with potential sources of contamination??? That’s just a completely made up argument from ignorance.

    Here they call it iron fields, and AFAIK it’s all about them being ugly, and has nothing to do with weirdo health claims.
    Personally I’d prefer the fields around our house to not become solar farms, but from a health perspective, I bet it’s actually safer, as there are no toxic chemicals used.
    While ordinary fields are generally sprayed with manure, insecticides and weedkillers which all contain toxins.


  • False, the chargers have transformers, and I bet charging stations with 20+ chargers have local transformer stations too.
    For one transformer station to supply for instance 12 chargers at 100 amps each or 4 at 300 amps each is both 1200 amps.

    When you deliver the same energy in a much quicker time

    You obviously completely failed to understand my explanation that this is not what is happening on the scale of charging stations with many available charging slots.
    Obviously these 1,5 MWh charging stations will not be availbale at you local grocery store, they are part of bigger installations with probably already around 20 charging slots of 300-400 kWh charging capacity.



  • You have to consider that the amount of power needed is the same, it is just delivered quicker for the individual car.
    But spread among thousands of cars it all evens out, making the power delivery required mostly the same.
    Slower charging just means more cars are charging at the same time, and 50 cars charging at a lower rate is the same as 10 cars charging 5 times as fast, but also only a fifth of the time.

    So for the network it’s the same, it’s only for the individual charger that there’s a real difference.


  • This is very impressive, I just saw a Youtube video from Sweden about how insanely fast these new BYD cars charge 10-70% in 5 minutes!!!

    Meanwhile the new Tesla model Y that supposedly charge at 250 kWh, has one of the worst charging curves in the market, and drops off to only 100 kWh already at 35% charge level!!

    The new Tesla cars are actually worse than the old ones, because Tesla is using their own inferior battery design made for the Cybertruck, that Elon Musk used to rave about how amazing would be, but gave them so many problems to manufacture, and apparently this never got completely solved.

    Anyone who think Tesla is still a market leader or even just still a good option must be unaware of how bad Tesla is now compared to the competition. Tesla did some cool things early on, but they are nowhere near what their marketing is claiming.


  • I must admit I was a bit worried about the extra time for the trip because of charging, but after this trip, although the trip was maybe about ½ an hour extra each way, I found that it doesn’t really matter, the silence of the electric makes it much more relaxing than any ICE car I’ve ever owned. So much that the family we visited could tell we were less tired from the trip than usual. We usually have about 10 minutes break midway, to get a sandwich and switch driver. I think the charging made it so we weren’t so much in a hurry to finish the break. All in all way more relaxing way to drive, we also used to drive 140 km/h in the ICE car, but with the EV we limited it to 120 km/h, because we figured the higher speed would just mean more charging time.

    So in short I agree, that all my fears regarding longer trips have evaporated. Also I can see the point some reviewers make, that with faster charging a bigger battery isn’t as important as it used to be. Our car has a 77 kWh battery, and can charge at 125 kWh. but the real charging peaked at 113 kWh, and we broke it off at about 65% because the rate begins to drop to around 70 kWh at that point. So we typically charged from 15-20% to 60-70% using 2 stops. This was at temperatures around 5° C out and 8° C home, There was also strong wind out, so we charged 2 times both ways. Out because of unfavorable weather, and home because we started with only a 70% charge.
    On the way out the efficiency was 20% worse than back home, so the poor weather with strong head wind and lower temperature was a major influence.

    But I think to drive the car close to or even below 10% requires that you know your car in such situations, and are confident you can find a charger in time.
    This was our first such trip, I bet we can do better next time. 😀
    The car is a VW iD.4 Pro Performance Tech 2021 for anybody curious. Battery state 90%.


  • EV owners are saving upwards of 60 per cent on fuel compared to their old petrol cars. At $2.54 a litre for premium, that stops being a brochure stat and starts being a survival strategy.

    We just had our first 1000 km round trip with our EV. We spent about 40€ on fast charging, and home charging was mostly free because it was from our solar panels, but would be equivalent to about 8€ for a full charge if we had to pay the night rate.
    Then we topped the car while visiting, but that was with only a 6A cable, so not much was charged, let’s say about 3€.
    So all in all about €51, despite fast chargers are a bit expensive compared to home charging. Also we arrived home with enough charge for more than 100km left on the battery.

    With our old ICE car that would have been 155 € in gas/petrol.

    So even using the “expensive” fast chargers our EV allowed us to drive at a third the cost of gas/petrol. But in everyday driving the savings are way bigger, even if we had to pay normal prices and didn’t have our solar panels. The savings are at least twice of using fast chargers.
    But gas/petrol is also almost 50% more expensive here than the price they list for Australia.


  • I think the only way to electrify trucks to a degree that it makes a difference is through legislation.
    Electric trucks seem to me to have downsides that make them unprofitable compared to diesel, unless legislation shift the economy to favor electric.
    The weight of the battery makes it so a truck can carry less, and it will inevitably have shorter range than a diesel truck.
    So an electric truck can carry less weight for shorter distances, and it’s probably more expensive to make and buy because of the battery.

    I think it will happen eventually, but I’m not aware that anything serious is done in EU to help it along.