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Post by fish on Oct 9, 2024 15:40:49 GMT 12
I've always had this crazy idea that the EV ferries are all go cause the whole of life costs are cheaper than ICE ferries. That is once you account for how much diesel they burn over a design life. That and engine hours / engine replacement etc.
That would mean the EV ferries aren't necessarily being done for climate change. The fact that there is govt subsidies etc awash around the game just makes it a more profitable proposition. Oh, and the optics are very good also.
I am probably wrong though.
Not following the jet unit adoption, but I can vaguely understand some propeller head doing a whole of life analysis on carbon V alloy and showing that carbon is cheaper over the whole life due to weight / fuel savings and possibly maintenance / coating systems.
Either that, or the people we trust to make important financial decisions for our cities and infrastructure planning are just grossly incompetent. This possibility cannot be ruled out on the information to hand.
Do ferries have to pay duty and GST on diesel like everyone else does? If so, EV ferries would be loads cheaper to operate than diesel ferries. The question becomes if that is cheaper enough to offset the initial capital cost, noting the first few will have a premium for new tech.
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Post by ComfortZone on Oct 9, 2024 20:26:28 GMT 12
Not following the jet unit adoption, but I can vaguely understand some propeller head doing a whole of life analysis on carbon V alloy and showing that carbon is cheaper over the whole life due to weight / fuel savings and possibly maintenance / coating systems. Interesting question, brother used to work in the aviation world, said when a plane (talking 747's and the like) needed some panel beating it was quite straight forward to remove and replace the skin, frames and stringers. Only needed paint for decoration, not protection. Composites a whole different world in both aviation and marine. In marine don't takes the knocks as well as a metal boat and needs a much greater skill set for repairs especially with all the secondary bonding issues. I suspect the design has been driven by people who do not have real world experience of the wear and tear ferries take in service |
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Post by ComfortZone on Oct 17, 2024 8:27:18 GMT 12
Ian Bradford on historical storms back to ~1000AD Rain and Flooding are NOT Climate - they are Weather Events breakingviewsnz.blogspot.com/2024/10/ian-bradford-rain-and-flooding-is-not.html?m=1excerpt The United States Geological Survey (USGS) has been working with several groups to identify the frequency and the strength of past storms that were not previously studied. One of their studies looked at hurricanes in northwest Florida going back 2000 years. Past conditions were only due to natural processes and cannot be blamed on human interference. The USGS research suggests that existing records of recent storms may under represent how often powerful hurricanes have made landfall in northwest Florida in the past. The USGS study identified several strong hurricanes reaching category 4 and 5 levels that made landfall between the years 650 and 1250 AD. A category 5 hurricane has a wind speed of 155 mph or more. None of this hurricane activity can be attributed to humans. It was all part of natural processes.
Just digressing to another area: From Georgia to North Carolina, major hurricanes struck twice in 1893 and then in 1898.1899,1906, and 1911. A number of smaller hurricanes struck between 1893 and 1911. The first major storm of 1893 was the most damaging hurricane to strike North Carolina and the second most deadly natural disaster in U.S. history. It arrived in August killing 2000-3000 people and thousands of farm animals. Compare that to around 100 deaths from Hurricane Helene and 20-30 deaths from hurricane Milton.
Clearly hurricanes are not a new phenomenon. Hurricanes have occurred many times in the past and often of greater intensity than we see at present. In fact, in spite of the fact that we are told oceans are warming and causing more hurricanes, actual observations show hurricane activity is declining. The following is a graph of hurricane activity since 1990. |
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Post by GO30 on Oct 17, 2024 13:07:05 GMT 12
Interestingly if you reads the latest IPCC report they agree with the post above, there is no increase in frequency or intensity of storms worldwide bar in the Gulf of Mexico.
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Post by GO30 on Oct 17, 2024 13:14:46 GMT 12
BYD Shark 6 price announced last night. That's their new ute that has 90-100km of battery and a 1.5 turbo petrol generator under the bonnet that can give it another 700km. The wheels are electrically driven via 2 motors the entire time,the ICE only generates.
I was expecting 85K plus, they came out saying 70K.
At that price they will be head to head with the usual suspects who I'd think should be quite concerned about now. In fact that is cheaper than some of the top end deRangers and Toymotors. The BYD is cheaper than 8 of the 14 deRanger options sold in NZ. Cheaper than the top 4 Hilux double cab options as well. We may see a battery wagon force ICE wagons down in price, that wouldn't be a bad thing.
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Post by ComfortZone on Oct 17, 2024 15:16:16 GMT 12
We may see a battery wagon force ICE wagons down in price, that wouldn't be a bad thing. Utes are quite cheap to build, relatively speaking, and very profitable for the manufacturers |
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Post by fish on Oct 18, 2024 20:52:44 GMT 12
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Post by GO30 on Oct 19, 2024 7:19:36 GMT 12
Fornicate me, that's just crazy.
Some of this new technology must have been created just to ensure a key phrase never goes extinct, that being 'you just couldn't make this shit up'  |
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Post by Cantab on Oct 23, 2024 8:10:05 GMT 12
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Post by GO30 on Oct 23, 2024 8:33:36 GMT 12
Not sure its a bombshell but it is the 3rd study to come to the same conclusion. 3 rather diverse places as well.
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Post by harrytom on Oct 28, 2024 10:45:05 GMT 12
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Post by ComfortZone on Oct 28, 2024 21:33:37 GMT 12
yet another reminder that Unreliables cannot be relied on, in spite of huge sums bein sunk into them joannenova.com.au/2024/10/650m-in-renewable-energy-didnt-save-broken-hill-from-days-of-blackouts-after-a-storm-islanded-it/opens The lights went out in Broken Hill. A storm blew seven transmission towers over disconnecting the area from the national grid on October 17th. About 19,000 people live there, and with a 200MW wind plant, a 53MW solar array and a big battery, plus diesel generators it was assumed they’d be OK for a while without the connection to the big baseload plants, but instead it’s been a debacle. They’ve had nearly a week of blackouts with intermittent bursts of power, barely long enough to charge the phone.
The fridges in the pharmacies failed, so all medications had to be destroyed and emergency replacements sent in. Schools have been closed. Freezers of meat are long gone… Emergency trucks are bringing in food finally and hopefully the schools will reopen today. But the full reconnection will not happen until November 6th.
The bad news is that when there is no reliable 50Hz baseload supplier of electricity, the solar panel inverters just don’t mesh well with the diesel generators. The frequency of the diesel generators varies slightly as the load changes, and these fluctuations cause issues with solar inverters, which need a stable frequency to synchronize properly.
Hence, in a blackout, the solar panels were not just useless, they were a threat to the system, so people were asked to switch them off: |
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Post by em on Oct 29, 2024 7:38:57 GMT 12
That’s fuckin weird . Our 2018 vintage “ solar inverter “ happily takes 50Hz from the generator even on a sunny day with the panels supplying as well . It’s not a Chinese model though . Elon is going big a solar farms so who knows what will happen .
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Post by em on Oct 30, 2024 7:47:46 GMT 12
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Post by ComfortZone on Oct 30, 2024 8:07:19 GMT 12
The description of a 4 hr battery pack means what? Can it meet 20% of the SW demand on a hot 40 deg+ February day when industry is running flat out and everyone has their air conditioning cranked up? I very much doubt it. The WA SW system is isolated from the rest of Australia, the idiot state liebour government is still pushing ahead to decommission the coal generators at Muja and Collie but have nothing up their sleeves to provide reliable baseload. Maybe they could get Nickel West (BHP) to crank up the 30MW LM6000 GT's (currently mothballed) fed by gas pipeline I managed the installation of at Kalgoorlie Nickel Smelter and Kambalda (as well as Leinster and Mt Keith) in the late 90's. Part of the installation was having the ability to interconnect with the grid, it was a nightmare satisfying Western Power that the systems could synchronise correctly.
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