Thanks: 130
Likes: 501
Needs Pictures: 8
Picture(s) thanks: 2
Results 541 to 555 of 860
-
15th February 2020, 06:37 PM #541
Yes, but that doesn't address the issue of base load that Paul has raised.
Dispatchable electrons is the issue.
With enough batteries and other storage, maybe, but the magnitude of those that would be required to provide dispatchable power for any length of time and the economics of doing so has been questioned by Paul.Stay sharp and stay safe!
Neil
-
15th February 2020, 08:12 PM #542
Is there much hope that batteries will come of age to provide base load power? I get the feeling that it won’t pan out that way except for vehicles etc.
When we do get to the EV being mainstream, our power requirements to charge them will ramp up the baseload too I would expect
-
15th February 2020, 08:50 PM #543
Beardy
Batteries are not the economic answer for the moment. Baseload power would only be affected if battery charging took place primarily when solar was not operative. At this stage we can only guess at how charging profiles will develop. The benefits of electric cars are diminished if fossil fired power is used to recharge them.
Regards
PaulBushmiller;
"Power tends to corrupt. Absolute power corrupts, absolutely!"
-
Post Thanks / Like - 0 Thanks, 1 Likes, 0 , 0Beardy liked this post
-
15th February 2020, 11:11 PM #544
Coal Fired Feasibility Study
In an earlier post I referenced a newspaper article from WA regarding a feasibility study for a new coal fired power station in QLD. It appears that the location concerned was the site of Collinsville, inland from Bowen. This is my take on the porposal.
The old Collinsville power station was small. 4 x 31MW units and 1 x 66MW unit. It was built on top of a coal mine and had (still has) a good supply of coal. It was closed down in 2018. At least once during it’s operation they had to shut the station down when they ran out of cooling water. They used old style cooling towers rather than the huge hyperbolic towers, not that that would have made much difference.
Today there is a 42MW solar farm on site. Much has been touted about re-opening Collinsville. That is mis-leading and more exactly the description would be the creation of a completely new station. The indigenous company, Shine Energy, which has local connections is the interested party.
Back during the last Federal election there was a promise of $10 million to fund a feasibility study. Nothing happened to honour that commitment until recently when the Morrison government announced a $4 million grant for a feasibility study.
My impression is that Shine Energy is seeking significant funding if the project went ahead (and in that statement we are well ahead both of ourselves and the feasibility study). I don’t know who would be interested in putting up the $2 billion. The government has no interest in financing anything and has divested itself of much it used to own. I would be surprised if any bank was interested in today’s climate (pun intended).
The government is clearly keen to get onside with the marginal seat of Collinsville (or whatever the electorate is called) and they will no doubt point to the feasibility study as testimony to their commitment to coal. If challenged by southern electorates where there is less sympathy with fossil fired power, they will claim it is only a feasibility study and one they possibly already know is doomed to failure. The government will probably claim they sought an independent study, but the cynical among us might even claim it is a sly ploy to curry favour with zero responsibility and less intent.
One problem is that QLD is probably the worst state of all to contemplate such a venture even disregarding carbon emissions and a move that may well be seen as completely contrary to targets anyway. The last coalfired units built in Eastern Australia, six of them, are all in QLD. They will all last until 2050 if required. I was going to say the best location would have been Victoria, but they have brown coal and that is worse even than black coal for carbon emissions. QLD has, if anything, a surplus ofpower.
There is talk of an ultra critical boiler. Ultracritical is similar in concept to supercritical with the only real difference being that the pressures are higher again with 280bar to 300bar in an ultracritical compared to 240bar for supercritical. Traditional modern drum boilers are 168bar. The advantage of ultracritical is better efficiency, but this has to be balanced against greater strain on all components. This type of unit in the past has had to be around 400MW plus to be economic.
In a way that is the right way to go from a technology aspect, but not at all from the carbon reduction point of view. Time will tell where this will go.
Regards
PaulLast edited by Bushmiller; 15th February 2020 at 11:17 PM. Reason: Incompatible computer!
Bushmiller;
"Power tends to corrupt. Absolute power corrupts, absolutely!"
-
Post Thanks / Like - 2 Thanks, 0 Likes, 0 , 0
-
15th February 2020, 11:31 PM #545
[QUOTE=Beardy;2173838]Really? You are checking to see if I have logged on as you are busting to win an argument
I am not particularly a fan of the whole CC mantra / religion
The thing here is that religion is a belief system and science is not.
Science is a tool. Just like a shovel or rather the idea of of shovel. So if you know what a shovel is then you can adapt the design to suit what you want to shovel, like a super wide shovel for snow or an narrow shovel for digging trenches or a spade for garden work etc. (I should have said 'chisel') If you don't believe in shovels and you have to move a pile of horse manure then you will just have to use your hands.
And science is a unique tool in that it is self correcting. It is only when an idea has been tested thousands or millions of times that it is accepted. Everybody tries to find fault with every theory, every experiment, every set of data. That is how it works. When the scientists say that co2 is causing climate chaos they are not just making an ambit claim, they are stating the best picture of reality which we currently possess. That is why all these astonishingly precise and complicated things that make up global 20thCentury civilization work. All the medicine, communications, global travel, modern agriculture, computers...everything is because the science is right. Religion on the other hand is just what a bunch of people reckon...
-
Post Thanks / Like - 1 Thanks, 3 Likes, 0 , 0
-
16th February 2020, 01:30 AM #546
Big badass huge batteries by the billions
Collinsville.... Imagine if they used that $2 billion for solar and battery .
I just happened to receive an investor pack for this.
Battery isn't trivial. It is the future .
https://thehub.agl.com.au/articles/2...t-on-batteries
Also ESCRI-SA - Dalrymple Battery Project
-
16th February 2020, 06:46 AM #547
[QUOTE=Toymaker Len;2173978]Len you have misunderstood me
Maybe that is my fault for not elaborating on the comment.
I am not referring to the science I am talking about the cult like following that has emerged as a result where people cannot even have a rational discussion on the topic without vilification, children have been denied their innocence and are being used as political pawns. In a broad sense the public has been led to believe that we have the answers and the right wing and Murdoch are preventing it from happening. You hear the touts of solar, wind, thermal, nuclear, hydrogen, batteries mung beans or whatever else is out there like we have a solution in waiting, it feels like everyone is hysterically running around in circles waving their hands ( and placards) in the air saying do something, children are crying and suffering mental health issues because they have been told they have no future.
That is not the scientists doing that is it? I saw a program were a leading scientist said a particularly finding had been taken out of context and the information being circulated is not correct/ misleading he was asked why then don’t the scientists step up and set the record straight to which the reply was to the effect of “We are scientists, our job is to report our findings not how the information is disseminated ”
If I look at how this thread has developed ( assuming the information is correct given this is a woodworking forum lol) in summary, we have basically already gone as far as technology can allow us to with our green energy uptake and the next phase will develop when the technology allows.
I believe that regardless of who the political leader is of the day and what Murdock thinks, when a viable solution comes to light there will be no stopping it as it will be a huge money trail that even Gina would put her shovel down and follow it.
Everyone needs to put down their placards, take a deep breath, calm down and stand back and have a rational look at where we are at.
We spent too much time focusing on things like the percentage of the reduction of our emissions over the next X years. Realistically we are arguing over 10 or 20% of 1%
As Ray said earlier, there is a sensible common ground in the middle
-
Post Thanks / Like - 0 Thanks, 1 Likes, 0 , 0doug3030 liked this post
-
16th February 2020, 07:32 AM #548
-
16th February 2020, 07:42 AM #549
Some great footage here from Vic Parks of the fire damage
YouTube
-
Post Thanks / Like - 2 Thanks, 1 Likes, 0 , 0FenceFurniture, Toymaker Len thanked for this postwoodPixel liked this post
-
16th February 2020, 08:01 AM #550
I've never seen burnt landscape where it is just sticks that are left - usually brown crowns, but at the two minute mark the landscape is just bare earth.
"because of Climate Change and it's impact, so this is not normal bushfire - it's beyond that"
-
16th February 2020, 08:29 AM #551
-
16th February 2020, 09:50 AM #552
-
Post Thanks / Like - 1 Thanks, 0 Likes, 0 , 0FenceFurniture thanked for this post
-
16th February 2020, 09:59 AM #553I got sick of sitting around doing nothing - so I took up meditation.
-
Post Thanks / Like - 0 Thanks, 1 Likes, 0 , 0Beardy liked this post
-
16th February 2020, 01:00 PM #554
Excellent description of the scientific process, Len.
Living knee deep in scientists as I do in both my wife and my family, I know close up that the prize goes to the scientist who challenges the current thinking with a new explanation that can't be disproved. The process is one of attrition. Put forward a new theory and it will attract vigorous attempts to discredit it. A theory only lasts until it is disproven. That is why Einstein's theories are accepted, at least for now!
As far as I can see, none of the participants in this thread are calling the science into question (am I wrong about that), just what should be done about it.Stay sharp and stay safe!
Neil
-
Post Thanks / Like - 1 Thanks, 2 Likes, 0 , 0Toymaker Len thanked for this postBeardy, FenceFurniture liked this post
-
16th February 2020, 01:22 PM #555
The most useful document on that is the International Geothermal Expert Group's Report to ARENA
The one page of Key Findings summarises it quite well.
Drilling multiple 4km deep wells at an average cost of approx $15m (back in 12014) is the limiting factor along with the remoteness of the best geothermal areas from users. Just one successful well can establish the economic viability of an oilfield. The stakes are much higher for deep geothermal energy.Stay sharp and stay safe!
Neil
Similar Threads
-
Katoomba Library Board Games afternoon
By FenceFurniture in forum NOTHING AT ALL TO DO WITH RENOVATIONReplies: 6Last Post: 6th October 2018, 11:04 PM -
Just got smashed by a hailstorm
By Lappa in forum NOTHING AT ALL TO DO WITH RENOVATIONReplies: 16Last Post: 22nd March 2017, 10:30 AM -
GOING TO: Kew, NSW to Katoomba and Return
By Shedhand in forum MEMBERS TRANSPORTReplies: 1Last Post: 25th February 2012, 08:40 PM -
Air temp, Terrestrial temp different, Why?
By Earthling#44-9a in forum NOTHING AT ALL TO DO WITH RENOVATIONReplies: 11Last Post: 3rd May 2008, 12:42 AM
Bookmarks