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The Forum > Article Comments > IEA: renewables growth is stalling > Comments

IEA: renewables growth is stalling : Comments

By Nicholas Cunningham, published 15/5/2019

In 2018, total deployment of renewable energy stood at about 180 gigawatts (GW), which was the same as the previous year.

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What 100% renewables supporters don't get is that it may be a niche product. Chia breakfast cereal may storm the market but it doesn't mean cornflakes are doomed. At high penetrations the integration costs of wind and solar may stymie further growth. These costs include subsidies, massive storage, frequency correction, long distance transmission and load balancing by inefficient thermal plant notably open cycle gas and fast ramped coal.

The likely winning party of next weekend's Australian election has promised 50% renewables by 2030. Not sure about the other 50% but nuclear is not allowed. Trouble is we need to reliably power millions of EVs, desalinate seawater in dry times such as now and replace costly to run gas appliances. According to opinion polls the public wants it not sure if they grasp the problems.
Posted by Taswegian, Wednesday, 15 May 2019 9:14:48 AM
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Dear Taswegien,

The public not only wants it but is actively involved in trying to achieve it. We hold the world record for per capita uptake of residential roof top solar. These do not have to contend with transmission losses, nor are they taking up huge acerage, nor are they pumping SO2 and NO and mercury into the surrounding community.
http://www.abc.net.au/news/science/2019-04-01/coal-fired-power-emissions-mercury/10958128
Posted by SteeleRedux, Wednesday, 15 May 2019 9:54:17 AM
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If it's true, yipee!
Posted by ttbn, Wednesday, 15 May 2019 10:16:29 AM
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Yes, the take-up by private citizens and other entities is slowing as these things always do when a particular saturation point is reached!

And it is becoming clearer to even the indoctrinated Green Idealogues that renewables have a finite limit in any modern economy and that there are vastly superior and less polluting more sustainable options whose name can't be mentioned i.e., MSR thorium!.

Given the vested interest by alleged green activists in this area of going backwards, economically? Helped by useful tools, or (brainwashed from birth, anti-nuclear) gormlous greenies The only economic tool the greens have in their depopulation arsenal, is tourism and all the environmental and economic harm that brings with it!

Like increased sewerage outflows and the harm that has done, is doing to adjacent seabeds. And as always blamed on convenient scapegoat farmers and farming practices.

Plus even more unaffordable housing, homelessness and popular destinations being transformed by excessive tourists and their destruction of former beauty spots!

As their only gormless response to climate change and overpopulation!

We stay the course according to the brainwashed green formula (smash the dams and our manufacturing capacity/sector! And what has gone wrong as the consequence can only massively magnify!

. Until the tipping point in climate change is well and truly past history. And the logical outcome of allowing the lunatics/environmental fanatics to take over and run the asylum!
Alan B.
Posted by Alan B., Wednesday, 15 May 2019 11:02:12 AM
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Thank god. I see the king of the useful idiots has leapt in as usual;, I wonder if he has any math to use to see the facts. Obviously his useful idiot following is running out.

I wonder if some are realising that, it Labor get in we will soon be too broke to continue with the subsidies, & all that investment will be a dead loss, & nothing but a source of roof leaks.
Posted by Hasbeen, Wednesday, 15 May 2019 1:09:00 PM
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The present way of introducing renewable energy is "suck it and see".
We rae told that renewables are the cheapest generators.
Now, that is TRUE ! A wind turbine with maximum wind produces cheap electricity.
The same with solar. Between 9am and 3pm (summer).

The problem is that over the year wind and solar are only 35% to 50%
of their nameplate rating.
That means you have to install two other turbines, but you cannot put
them next to the others as they will all stop or give 3 times output.
So you have to put them in other good wind areas.
So if you have three good areas it helps, but the wind will not blow
in all three areas at all times, so you have to build more areas all
equipped with the same number of turbines as the first area.
Some overseas have done that work and claim you need a large country
to get a spread of weather systems.

Then having done that you need a very high powered grid so that one
area of the country can supply itself as well as perhaps two other
parts of the country.

A duplication figure of 12 has been suggested across 15,000
wind & solar farms for an Australia sized country.
I have found only one example of a suggestion like that modeling.

However such a scheme would be unaffordable.
It is better than suck it and see !
Posted by Bazz, Wednesday, 15 May 2019 9:37:59 PM
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While I'm as supportive of renewables as the next radical, I understand that it's something that needs to be done slowly. We've been dependent on other methods of power production for so long, we need to do things slowly and phase out the old stuff to bring in the new otherwise not just our planet but the whole economy will collapse. It's all rad and good to think about the benefits of having fully converted, but it's simply just not feasible!
Posted by EdwardThirlwall, Sunday, 2 June 2019 4:19:46 PM
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This article follows the Greens success in the European election, http://tinyurl.com/y2zbemx6
Posted by Luciferase, Monday, 3 June 2019 10:40:16 AM
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