RE: Cornish Mining conference21 Oct 2021 11:56
"Other countries have the same net zero target and the solution for them is probably nuclear in northern climes. Polands copper manufacturer has ordered multiple small nuclear plants from the US"
Small Modular Reactors are potentially a major part of the energy mix of the future, essentially they are one of the few non-fossil fuel based technologies with the potential to provide reliable baseload power, and given construction costs of nuclear are such a high % of the overall cost of electricity from them, if that can be substantively reduced, nuclear would become much more favourable. Nonetheless, it would be a bold move by KGHM (copper, Poland) to invest in this technology, although I'd point out at this point it is only a Memorandum of Understanding to explore the potential use of this technology, so any financial commitment will be minimal at this stage. But the fact they are even going to the trouble to look at it, shows that they are highly concerned with the plans being put in place, and understand that existing renewable technologies, even combined with batteries, will not be adequate for their needs.
https://newsroom.nuscalepower.com/press-releases/news-details/2021/NuScale-Power-Signs-Memorandum-of-Understanding-with-KGHM-and-PBE-to-Explore-SMR-Deployment-in-Poland/default.aspx
"Solar powered smelters have been built."
Actually, no, they haven't, and there's many very good reasons smelter powered off solar energy alone is not viable. The project you refer to is no doubt this;
https://www.nsenergybusiness.com/news/uae-solar-aluminium/
If you read the *details* - and details are crucial, what you will find is they are providing solar energy of 560,000 MWh to the Plant, to make 40,000 tonnes of aluminium - with potential to expand. Given the company make 2,300,000 tonnes of aluminum, this means your "solar powered" aluminium, is in fact 1.7% solar powered. 40/2300 = 1.7%
So, yeah, its really a lot of window dressing at this stage. A lot of companies are starting to buy only "renewable electricity" - 100% certified Green, and claiming that their products embedded CO2 is thus very low, but the reality is there is a lot of creative accounting involved. I am sure there will be places in the world where you can use much higher % of renewable energy in major industrial processes cost effectively, but you always need backup thermal power, or very capital intensive energy storage solutions.
And before you start up on "batteries" - the largest battery energy storage facility in the World, Moss Landing Energy Storage Facility (1600MWh), in California, would power EGA's aluminium smelters, for less than 30 minutes. Largest battery in the world, wouldn't even get them through half an hour of the night... and if the power stops in a smelter for more than a couple of hours, and the metal solidifies, the whole line is a write-off, incoming bill for hundreds of millions of $ to fix.
Solar powered smelter in Cornwall? Hmm, I dont