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Re: General Discussions

Reply #690
Do you think it's a bit naive to be taking what Boris says to the bank? Boris, Scomo & Trump are birds of feather. Scomo has gone big on projects that will only start years into the future (if they ever do) and I guess Boris has learnt at the feet of the master.

Amen.
Only our ruthless best, from Board to bootstudders will get us no. 17

Re: General Discussions

Reply #691
The thing that is often overlooked with this whole power thing is its availability.
The sun doesn't shine for 24 hours.
The wind doesn't blow for 24 hours.
What do you do in the meantime? You need some HUGE batteries to cope.....and then we start into our battery debate again.

What happens if we put all our eggs into the solar basket and there is a volcano, or even an asteroid that plunges a city, state, country into darkness for days on end? Remember the volcano that shut down all of europe a few years ago?

Nuclear works, just like coal, whenever you need it too.

Remember that there are other ways to store electrical energy than batteries; pump hydro, flywheel, compressed air, and thermal energy.  Then there's natural disasters and breakdowns taking out nuclear power plants.

A sensible approach would be to invest in everything but fossil fuel power generation.
“Why don’t you knock it off with them negative waves? Why don’t you dig how beautiful it is out here? Why don’t you say something righteous and hopeful for a change?”  Oddball

Re: General Discussions

Reply #692
Remember that there are other ways to store electrical energy than batteries; pump hydro, flywheel, compressed air, and thermal energy.  Then there's natural disasters and breakdowns taking out nuclear power plants.

A sensible approach would be to invest in everything but fossil fuel power generation.

A smart way would be to invest in something that gives you best bang for your buck that is reliable and a long term option with much less effect on the environment than fossil fuels.
That is nuclear power.

Power Output vs waste produced dwarves anything else.

Re: General Discussions

Reply #693
A smart way would be to invest in something that gives you best bang for your buck that is reliable and a long term option with much less effect on the environment than fossil fuels.
That is nuclear power.

Power Output vs waste produced dwarves anything else.


Not really, renewable energy sources are providing significant electrical energy now and the energy storage methods available mean that there can be ongoing access to electricity when conditions don't suit generation (are there many days when the sun doesn't shine, the wind doesn't blow, waves aren't generated, the hydroelectricity dams are empty and the tides don't turn?).  Nuclear power could be part of the mix but fusion rather than fission seems to be the way ahead ... and it doesn't leave dangerous waste for many lifetimes.

Nuclear fusion reactors, like the one being built in France, have a way to go but have the potential to provide truly clean energy.
“Why don’t you knock it off with them negative waves? Why don’t you dig how beautiful it is out here? Why don’t you say something righteous and hopeful for a change?”  Oddball

 

Re: General Discussions

Reply #694
The trouble is all those cost comparisons claiming solar and wind are much cheaper do not take into account the true cost of storage, the ongoing maintenance costs, and the effects of subsidies.

Nothing reported is like for like, it is very selective, and it's an indictment on all those involved in the debate so I trust none of them.

On storage like hydro and thermal, it's also not necessarily the best option. Raising and lower water levels or temperatures have a similar side effect that result in the emission of methane. Solar thermal has some advantages, but to build an array that can deliver power in daylight hours and still store enough thermal for overnight requires massive arrays on a scale well beyond the current capability, they also have environmental impacts and huge ongoing maintenance costs. Flywheels and compressed gases are an option for small distributed systems, like street batteries, but they all have issues related to the environmental impact, cost and ongoing maintenance, which are again not factored into the cost comparisons between renewable and alternatives.
The Force Awakens!

Re: General Discussions

Reply #695
The trouble is all those cost comparisons claiming solar and wind are much cheaper do not take into account the true cost of storage, the ongoing maintenance costs, and the effects of subsidies.

Nothing reported is like for like, it is very selective, and it's an indictment on all those involved in the debate so I trust none of them.

On storage like hydro and thermal, it's also not necessarily the best option. Raising and lower water levels or temperatures have a similar side effect that result in the emission of methane. Solar thermal has some advantages, but to build an array that can deliver power in daylight hours and still store enough thermal for overnight requires massive arrays on a scale well beyond the current capability, they also have environmental impacts and huge ongoing maintenance costs. Flywheels and compressed gases are an option for small distributed systems, like street batteries, but they all have issues related to the environmental impact, cost and ongoing maintenance, which are again not factored into the cost comparisons between renewable and alternatives.

Yes that’s true LP, and particularly when you consider that:

Quote
Australian fossil fuel subsidies hit $10.3 billion in 2020-21

Of course, a significant amount of the “renewable energy” subsidies is allocated to the fictional “clean coal” research effort.
“Why don’t you knock it off with them negative waves? Why don’t you dig how beautiful it is out here? Why don’t you say something righteous and hopeful for a change?”  Oddball

Re: General Discussions

Reply #696
Yes that’s true LP, and particularly when you consider that:

Of course, a significant amount of the “renewable energy” subsidies is allocated to the fictional “clean coal” research effort.
No disputing that, now tell us the like for like!

Also tell everyone the source of the numbers and how they are calculated. Also if we calculated the figures for both sides of the debate using the same rules, how would they fall?
The Force Awakens!


Re: General Discussions

Reply #698
No disputing that, now tell us the like for like!

$2.8 billion for renewable energy, including the “clean coal” allocation.

Renewable energy amounted to 32.5% of electricity generated in 2021 so, even discounting the “clean coal” scam, taxpayers are shelling out more to keep the coal-fired power stations going.  Even with that significant assistance, energy companies are bailing out of coal plants because there’s no money to be made.
“Why don’t you knock it off with them negative waves? Why don’t you dig how beautiful it is out here? Why don’t you say something righteous and hopeful for a change?”  Oddball

Re: General Discussions

Reply #699
Not really, renewable energy sources are providing significant electrical energy now and the energy storage methods available mean that there can be ongoing access to electricity when conditions don't suit generation (are there many days when the sun doesn't shine, the wind doesn't blow, waves aren't generated, the hydroelectricity dams are empty and the tides don't turn?).  Nuclear power could be part of the mix but fusion rather than fission seems to be the way ahead ... and it doesn't leave dangerous waste for many lifetimes.

Nuclear fusion reactors, like the one being built in France, have a way to go but have the potential to provide truly clean energy.
Mind boggling process building a mini star/sun contained in a magnetic field within a reactor casing that can take a 1300 degrees celsius temperature.

Re: General Discussions

Reply #700
Mind boggling process building a mini star/sun contained in a magnetic field within a reactor casing that can take a 1300 degrees celsius temperature.

Absolutely!  But it’s happening now!

I should have paid more attention in physics 🙄
“Why don’t you knock it off with them negative waves? Why don’t you dig how beautiful it is out here? Why don’t you say something righteous and hopeful for a change?”  Oddball

Re: General Discussions

Reply #701
Absolutely!  But it’s happening now!

I should have paid more attention in physics 🙄
Me too, I did Elec Engineering at Swinburne Uni  but Nuclear Fusion was never one of the prac classes...😉

Re: General Discussions

Reply #702
Me too, I did Elec Engineering at Swinburne Uni  but Nuclear Fusion was never one of the prac classes...😉

My oldest brother is a physicist.  When he explains things like nuclear fusion it all seems so simple and feasible.

One of my staff was the humanities rep on the Australian Synchrotron committee of management.  When he explained how it worked and what it could do, it made perfect sense.  However, I still struggle to understand the theory behind it.

“Why don’t you knock it off with them negative waves? Why don’t you dig how beautiful it is out here? Why don’t you say something righteous and hopeful for a change?”  Oddball

Re: General Discussions

Reply #703
Me too, I did Elec Engineering at Swinburne Uni  but Nuclear Fusion was never one of the prac classes...😉
I did same at La Trobe, while there wasn't a prac class, there was certainly some lectures on it. The benefits of Nuclear was akin to something like Coal powered plant vs a guy a bicycle powered generator.

Re: General Discussions

Reply #704
I did same at La Trobe, while there wasn't a prac class, there was certainly some lectures on it. The benefits of Nuclear was akin to something like Coal powered plant vs a guy a bicycle powered generator.
We had lectures on Nuclear Power but Fusion was a process considered something akin to star trek travel and it was all about Fission back in my day.
At the end of the day it's turbines being run by steam from heated water , how you heat the water is the debate. Even your so called green Windfarms still rely on Turbines, generators, gearboxes and associated electrical equipment, as well as suck up gallons of oil.
Fission, Fusion...doesn't matter as long as it's a balanced setup with renewables and nuclear working together. Fusion would be great but the tech is still in the early days..