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This is why I don't do politics or science by meme, or in this case a simple graph, because we are find a set of numbers that suits our agenda and just publish it. Is the above the cost of generation, the wholesale price, or the retail price. Because, the latter two have factors that can distort the market. For example, Denmark's wholesale price is connected to the European markets believe it or not, so if an expensive dirty coal plant happens to produce and sell energy at the same time or within a price setting period, the wholesale price is largely set to be based on that price... which is far more expensive than wind or solar. That is wholesale price distortion. Of course, other European markets are subject to this as well, but since the grid is segmented, not all are setting the same wholesale price. Then the distortions at the retail price are local market conditions, taxes (of which Denmark has a lot - even VAT (GST) on electricity! Wowsers. Not even the UK levies VAT on electricity. So the retail price may not be at all reflective of the generation price. I prefer the Levilised Cost of Electricity comparison, which seeks to take out some of the more artificial price setting. According to Google AI, Denmark wins on wind, but loses on Gas and Solar: Note, the cheapness of fracked shale gas does not include the cost of cleaning up. Also, if Denmark decided to stay gas (or presumably coal, etc), from the above, they would be paying roughly double or more to produce electricity. I would suggest that the numbers show that wind and solar is much cheaper - for them. Not so much for the USA, again except this does not cover the true clean up costs. Which sort of shows the point of renewables - the optimum mix will be determined by local conditions. And, yeah, in some cases, even fossil fuel generation will make sense.. So, lets do a like for like comparison. South Australia, according to Google has around 84% of its electricity generated from wind (44% of total electricity generated) versus solar (33%). According to your chart, Denmark has a touch under 70%. That would suggest for South Australia, solar and onshore are very cost effective producers of electricity and offshore not so much (at least not yet). Also, because of SA's rapid deployment of storage, they seem to be already reaping some economies of scale benefits because of a rapid roll out, but as there is only commentary, it is hard to tell. In addition, in SA, gas is more than double solar and coal is almost triple the cost of solar, and around double of offshore wind. It does though, beat offshore wind, so unless we can address the issues that cause that, offshore wind (which probably has more constant wind). But interesting, SA is more wind and solar as a percentage of its generation, yet on a levelised basis, SA is cheaper. And as someone who has worked in the generation business, I am sure you're aware of the importance of this measure over retail or wholesale prices as a true indication of the comparative cost of generation. Thee price that is paid at the "pump" is only in a small way related to the cost of generation.. that, in @pmccarthy's vernacular, is the politics end of the argument. The cost of generation is the data end, and renewables are already at a big advantage there. Take politics out of it, and there really is no compelling reason to do so., The sun doesn't always shine - no.. Only at night or seriously overcast days is it that bad, but when it is shining brightly, we can store the excess and save it for when it isn't shining brightly. Even today, they are developing nocturnal solar panels which can harvest the infrared rays during radiating cooling of the earth to generate electricity (https://www.moeveglobal.com/en/planet-energy/sustainable-innovation/nocturnal-solar-panels-energy-without-sunlight). And there is a new technology that it looking at capturing vibrations from the wind and earth instead of using blades to generate electricity - fewer parts, cheaper and less landfill: https://en.wikipedia.org/wiki/Vibration-powered_generator This is the point. Fossil fuel burning is destroying the planet (in conjunction with a lot of other stuff we do). And now, it is no longer cheap to do it; and it will get more expensive. So we have to seek out alternatives. To not do it is kicking the can down the road and just making it more expensive to fix. It can be done; the tech is already here and it is improving very quickly. It is the politics that is the issue. In the mean time, if you want to take a meme-led approach, go for it. As for wind and solar not yet powering most of a country - well - no.. but it does most of a state that is the physical (admittedly not population) size bigger than many countries. But it's a ridiculous assertion because a place should use the most appropriate renewable/s, not an arbitrary renewable, anyway.1 point
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