Climate Change in Australia


#5069

Ignore.


#5070

Brilliant , you obviously did not watch the third and full length video.

Sit down and work this one out.

One 1600Mw coal fired power station requires 1,067 1.5 Mw wind turbines working at 100% efficiency.

Turbines have an AVERAGE output of 17.5%, the minimum output is much lower, down as far as 0.75%.

Replacement, 6,400 wind turbines each tower containing 168 tonnes of steel and 700 tonnes of concrete, plus composite materials and rare earth metals. And that is ignoring the infrastructure the each turbine needs, transmission towers and roads etc.

All this for a product that lasts on average about 15 years as opposed to a coal fired facility The has a shelf life of 50 years.

So basically you need to build and dispose of 21,333 wind turbines that deliver unreliable and intermittent power for each coal fired station.
How much CO2 for each turbine?

How many wind turbines does Australia have at the moment?
Best guess, somewhere south of 3,500.
It’s going to get awfully crowed out there.

And even after you watched Bill Gates video yo missed the main point.

IT IS NOT PRACTICAL.


#5071

Your maths is wrong. AGAIN

Your logic is wrong. AGAIN

I would explain but you show no capacity to comprehend.


#5072

Captain Velcro, back at it again.


#5073

At a value of 20% of the mass of construction materials released as the carbon dioxide emissions, with twenty thousand turbines, each weighing a thousand tonnes, that’s four million tonnes of emissions. That’s less than a large coal plant produces in a year. Over fifty years construction emmissions of wind turbines are perhaps one or two percent coal combustion emissions.


#5074

We started building them in the 90’s as far as I know, none have been retired. No idea where you have pulled 15 years from.


#5075

No idea? Hint : it’s a dark place


#5076

Even the rabid Murdoch media admit that Sorfy has “no cookies”


#5077

It’s an empty place…


#5078

My math is wrong but you provide none of your own.

GOOSE.

Prove me wrong.


#5079

And no matter what you say the power generated is intermittent and variable.

Would you buy a car whose brakes worked on the same principle.
Maybe I will stop, maybe I won’t.
Maybe I will go, maybe I won’t, maybe I will only speed up to 25kph.

That is wind and solar power.


#5080

I have gone to the trouble of showing you the correct maths before and you just ignore it.

so fix it yourself


#5081

Now I have been known to be stubborn, but I am not stupid. Your denial of what just about every nation on earth is changing their power generation to, is just really stupid.


#5082

Working out well in Germany isn’t, reopening lignite mines, gas from Russia, Polish black coal, French nuclear power to keep the system going and an ex communist hag who says they are going 100% renewable. Great way to destroy the strongest technological country since WWII.


#5083

This is the reality you Goose:

Figures from the Nenew Economy website

websitehttps://reneweconomy.com.au/nem-watch/

Generation in Victoria on Sunday 17February at 7:57am

Demand : 4593Mw

Generation:

Brown Coal: 4,436Mw
Gas: 1Mw
Wind: 29Mw
Large Solar: 75Mw
Small Solar: 54Mw

Renewables contributing 3.462% of Dopey Dan’s target of 45% renewables.

Where is the other 41.53821% coming from?

Unicorn farts? Pixie dust?

Brown Coal on the other hand contributed 96.582%

Let’s see you work your magic maths on that lot.

Twenty ■■■■■■■ Nine Mw

Wind, total nameplate capacity 1740Mw
Average output over 43 reading in December and January 313Mw.
Maximum efficiency 60.00%
Minimum efficiency 0.75%

And you clowns think you can operate an advanced industrial society on figures like that?

Morons.


#5084

And that’s why we have to move from brown coal to more renewables, which include batteries.


#5085

From that same reneweconomy website:

Black coal plants push Australian wholesale energy prices to record highs
Sophie Vorrath 14 February 2019 62 Comments

Australia’s fleet of black coal-fired power generators helped to deliver record high electricity prices in the final quarter of 2018, even in the face of lower overall demand, a new report from the Australian Energy Market Operator has shown.

AEMO’s latest Quarterly Energy Dynamics report shows that average NEM spot electricity prices for Q4 2018 were $82-96/MWh – the “highest prices for that period on record,” it says, in all regions except Tasmania.

As AEMO explains, these prices are notable not just for the record high, but because they occurred despite average demand for the quarter falling to its lowest level since 2002, and despite the increased contribution of cheap renewables and lower emissions.

According to AEMO, the drivers of the high prices – which for the majority (60 per cent) of the time were set by black coal generators – included planned and unplanned coal plant outages, reduced gas generation availability and output, high gas prices and high hydro prices.

“Black coal remained the dominant price-setter in the mainland NEM, particularly in Queensland and New South Wales, where it was the marginal generator more than 60 per cent of the time,” the report notes.

“In Victoria and South Australia, black coal set the price around 40 per cent of the time,” it added, noting that the dominant price-setting power stations were Gladstone (11%), Bayswater (10%) and Stanwell (9%) power stations. (Yes, black coal generators even set the price in coal-free South Australia, because the market is connected).

Interestingly, AEMO observed that the prices did not go beyond the level that might trigger further investigation from regulators (who investigate when prices go above $5,000/MWh). Generators appear to now understand the boundaries they must not cross, but that still allows plenty of area to play games.

AEMO’s report notes that when black coal wasn’t dictating prices, gas was doing the job in setting high prices– led by Torrens Island and Pelican Point in South Australia.

“Q4 recorded an increased incidence of gas playing a price setting role. GPG set the price 25 per cent of the time in the NEM compared to the long-term average of 15 per cent.”

And it, too, set the price at higher levels. For example, in Victoria, when gas set the price it averaged $115/MWh compared to $91/MWh in Q4 2017, the report found.

Hydro’s reduced price-setting role, meanwhile, coincided with reduced output and availability at prices below $100/MWh.

Another contributor to the record electricity prices, the report noted, included the structural shift of offers from black coal-fired generators to higher prices between 2014 and 2018, as well the progressive closure of approximately 4,000MW of coal-fired capacity between 2013 and 2017.

Coal generation also distinguished itself in Q4 2018 for the frequency of outages – both planned and unplanned.

It was the extended outages at Yallourn and Loy Yang A power stations, the report notes, that helped brown coal-fired generation deliver the lowest quarterly average since market inception.

And black coal-fired generation, too, experienced a load of outages – although all up it delivered more power in Q4 than in Q3 2018, despite lower electricity demand.

“There was … a relatively high number of sudden generator trips when compared to recent quarters, particularly in Queensland and New South Wales.”


#5086

Where are you going to get the power for the batteries?


#5087

The renew economy website is a propaganda outlet for the renewables industry.

It might interest you to know that with one unit down for maintenance and one unit failing the minimum output of Brown Coal was 79.895%, as opposed to the maximum efficiency of wind which was 60.00%

In ten years time this states power supply will be in worse condition than it was in 1950 after the depression and war years meant no power station were erected and every small factory had to have its own generator.


#5088

You don’t really need me to answer that question, but my solar panels. They get powered by the sun.

The days are fast approaching where non-rewnewables will be the supplementary power supply, not the main supply.