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05-18-2022, 02:30 PM | #221 | |
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05-18-2022, 02:31 PM | #222 | |
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05-18-2022, 03:01 PM | #223 |
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At peak load under ideal circumstances with the best newest systems. And even on those, the efficiency falls as load reduces. And how many of those are even deployed and in use?
For "Peaking" generators which are quite common, it's 30-40% at best. In the UK, the average all together is running an efficiency of ~43% Honda holds the current guinness record at 100.31 MPG, yet the national average still sits at 25.7 MPG for 2020 and newer light duty vehicles. |
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05-18-2022, 07:17 PM | #224 |
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Supercharging rates go through the roof. Are EV's going to no longer be an economic alternatives to ICE?
https://www.autoevolution.com/news/e...of-188884.html |
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05-18-2022, 10:09 PM | #225 |
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IMHO, the grid, power lines and that whole set system is an old concept. Beefing it up is a temporary fix and just a band-aide at best. I'm not exactly for the "green new wave," but for innovation to take place, we gotta get out of the comfort zone and get to an almost "oh sh*t" moment for anything to take place. I believe if they didn't set the dates to phase out ICE, we'd get nowhere. For FORD to invest billions of dollars into battery tech to meet the deadline is huge, and they won't be going back. That being said we need to re-think energy distribution completely. Naturally as humans we have to evolve and solve problems otherwise we are just going backwards, and no better place to do this than the USA, where we lead the world. The grid is an old thing.. it makes sense that every house/property in the future will become a private energy station. We have solar panels that are very advanced in space, they are just very expensive, but that will get solved eventually. Imagine in the future, a neighborhood where roofs are solar panels, driveways are solar panels, the mailbox is a solar panel, the little LED lights along the path to the front door have advanced solar panels, the back-up generators are now advanced battery packs, you park your EV in your garage and it will wirelessly charge. Who needs the grid then? Every high rise will have the same, every parking garage, every junkyard with wasted soil become a solar farm...
All this doesn't make sense when you think old... "but what about the grid!!!" |
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05-19-2022, 01:28 AM | #226 | |
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05-19-2022, 08:27 AM | #228 | |
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Set aside the skepticism for a moment and actually listen to what's happening with the batteries. They are worth..a LOT. Even when no longer usable for automotive applications. |
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05-19-2022, 08:34 AM | #229 |
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People act like hybrids and EVs are only for enviro weenies. I have an EV rate with GA Power and while we pay higher peak hours (while I'm at work so little electricity used) I also only pay about 2c/kwh from 11pm-7am which means my wife's volt can go from empty to 50mi range for about .32c
Day to day commute and errand running rarely uses more than a "tank" of electrons so before we started using her car to drive to blue ridge every 2 weeks she would go 3200mi on 9 gallons of gas plus the .32c a day (but really probably averages about .15-.20 because she rarely needs a full charge) so even with today's prices we're talking: 36 in gas 18 in electricity $54/3200mi That's why we have the car. |
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05-19-2022, 10:18 AM | #230 | |
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I work on grid expansion/update, it's part of my job. I am concerned at the pacing, not the long term plans to move to EV. The load is coming faster than the system can adapt = brownouts, declined hookups for new services, and lost service. It's not unlike working for the government - slow. Unfortunately, the government has a lot of say in what we can and cannot do. They don't always get it right, which I'm sure most find shocking Gas turbines love full load. they are to be used to backfill green sources, so as a whole they will almost never be full load - some possibly never. If I told you I could retrofit a turbine into yor car and it would get 60 MPG at 160 MPH - guaranteed, how often would you actually get 60 MPG? This is why using idealized efficiency numbers is useless. Just like Tesla rates things that are theoretically true, yet impossible to achieve. Lets not deceive ourselves, or decision makers with numbers no one will ever see. |
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05-20-2022, 06:50 AM | #231 | |
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A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission. "Yeah, but NO ONE puts an automatic trans shift knob on a manual transmission."
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05-20-2022, 09:57 AM | #232 | |
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05-20-2022, 10:23 AM | #233 | |
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Commercially on a wide spread industrial scale my gut tells me it will never happen, even if pressured to try. That gut reaction is fully based on liability/maintenance. We have a lot of battery backup systems to run the grid systems when the actual power is out. Large Battery maintenance is part of the job. Batteries get sick and behave non-uniformly. It creates risk and labor costs. Imagine having 1000 batteries all interconnected, and each with its own "history" and "issues". It would be a nightmare to manage that load, and the risk (overheat/fire, and loss of function). It could certainly be done, but would it be economical? Large utilities don't like risk, and let's be honest, we want it that way. Perhaps private large scale storage banks will be a thing, I just hope the do the math on the labor to run it long term. This kind of labor is paid 100K/yr minimum. Batteries don't create energy, they only capitalize on spot price differences ( working on margin) vs. actually creating value like solar and wind. There is less profit to work with. Last edited by chad86tsi; 05-20-2022 at 10:28 AM.. |
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05-20-2022, 10:40 AM | #234 | |
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05-20-2022, 12:24 PM | #235 | |
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05-20-2022, 12:45 PM | #236 | |
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And yeah, prices are silly, we could sell ours for 24k which was only 5 more than the price we paid in 2016. |
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05-20-2022, 03:14 PM | #237 | |
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The good news is we already have working models dumping supply into the grid, and they are a lot faster and easier to implement than conventional nuc plants for multiple reasons. |
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05-20-2022, 03:27 PM | #238 | |
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05-20-2022, 03:46 PM | #239 |
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Here's the problem with nuclear waste. If it was legit just spent fuel and actually contaminated parts it would be very small in number. I was in the nuclear navy for 9.5 years and spent my last 3 years as a repair facility mechanic. We would repack/repair upwards of 20 nuclear valves a year and maybe came across actual detectable contamination once. Every job a 75-85k valve cutter was bagged and tagged, at least 6-8 pairs of gloves, countless wiping rags, cuttings, old packing and any other waste inside the glove bag were yellow bagged, double wrapped and labelled as contaminated. Then you get a big ass bag to dispose of the glovebag in. Basically one job=one drum of "radioactive waste". 1 drum=20k in early 2000s money to dispose of.
We worked on two very small reactor plants, under 100mw and were generating train cars of waste every year. People bought into fear and made this happen. US nuclear power is safe, overbuilt and robust. Stuff built in the 60s is still viable and usable because it was so over-engineered and had so many redundancies. Fuel in a navy nuclear vessel is good for 20+ years. If we truly threw away only legit radioactive waste then the storage and disposal would be manageable easily. And, yes, I would live near one. I lived 300' from one for 5 years and was never worried in the least. Give me a 2 bedroom apartment on top of a containment vessel and I would happily live there today. In America, not some janky foreign plant. |
05-20-2022, 04:53 PM | #240 | |
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05-21-2022, 08:22 PM | #241 |
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05-23-2022, 02:22 PM | #242 | |
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We've had three major nuclear disasters in 43 years. That's not a great track record for a system that is supposed to be "safe", full of redundancies, and ran by high qualified personnel. There are countless small accidents and near misses at plants across the country and world, likely many not reported and/or the risk grossly underreported, as was the initial case with Three Mile Island, Fukushima, and Chernobyl. Nuclear power is an amazing technological advancement, but a sane person should question the risk vs reward factor when it comes to larger facilities like nuclear power plants.
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