Refs.:
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https://www.energy-storage.news/californias-critical-long-duration-electricity-storage-requirement-needs-to-be-planned-for/
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https://www.intertek.com/blog/2017-10-06-grid-scale-energy/
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https://www.greentechmedia.com/articles/read/pumped-hydro-moves-to-retain-storage-market-leadership
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https://www.economist.com/graphic-detail/2021/03/31/lithium-battery-costs-have-fallen-by-98-in-three-decades
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https://www.powermag.com/how-much-will-hydrogen-based-power-cost/
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https://www.irena.org/newsroom/pressreleases/2020/Dec/Making-Green-Hydrogen-a-Cost-Competitive-Climate-Solution
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https://www.rechargenews.com/energy-transition/global-green-hydrogen-pipeline-exceeds-250gw-heres-the-27-largest-gigawatt-scale-projects/2-1-933755
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https://x.company/projects/foghorn
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https://web.archive.org/web/20130921055300/http://www.intpowertechcorp.com/ASME-IMECE-12-87097-FINAL-30Jul12-C.pdf
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http://www.leightyfoundation.org/wp-content/uploads/lces-2012-guangzhou-21oct.pdf
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https://ibb.co/fkNNLgR
This is an automatic summary, original reduced by 69%.
> Germany is embarking on an innovative project to turn a hard coal mine into a giant battery that can store surplus solar and wind energy and release it when supplies are lean.
> The Prosper-Haniel coal mine in the German state of North-Rhine Westphalia will be converted into a 200 megawatt pumped-storage hydroelectric reservoir that acts like a giant battery.
> Founded in 1863, the Prosper-Haniel coal mine produces 3,000,000t/y of coal and is one of the few active coal mines remaining in Germany.
> Rather than releasing the outflow the water is then stored in the lower reservoira until it can be pumped back up to the top reservoir using cheaper, off-peak power or another renewable energy source.
> Germany has such an impressive renewable energy mix that last year, on a particularly windy and sunny day, so much power was generated that people were paid to use it.
> More mines could be converted into industrial-scale storage facilities as North-Rhine Westphalia seeks to double the share of renewables in its power mix to 30 percent by 2025, Kraft said.
Summary Source | FAQ | Theory | Feedback | Top five keywords: mine^#1 energy^#2 renewable^#3 power^#4 reservoir^#5
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Between day/night cycle and weather (plus some mods like BloodyPenguin's Improved Wind Simulation) the renewable power sources are starting to reflect IRL reliability issues. I was thinking it would be cool if there were some way to use in-game hydro dams as a way to balance some of that variability, like real-world pumped storage stations (https://en.wikipedia.org/wiki/Pumped-storage_hydroelectricity). The idea being that on a sunny/windy day, excess power is used to pump water into a reservoir (or at least not release water from the dam or something), then let the water flow down and produce power when wind/solar are not producing as much or when demand is high. Seems like it could be hard to implement given the complications already in place with hydroelectric dams, but I've been blown away by what modders are able to do, so figured it's worth a shot. I think the biggest issue with this in-game would be modifying the current setting by which hydro dams only produce power when the reservoir is at full pool. Not sure if any modders have touched this at all, but given the other variables that have been tweaked seems like it could be done. Not sure how budget implications would work, or whether/how it could be connected with the water system. Discuss, I guess?
