You missed a lot of things.

It is always claimed that the conversion to 80-100% renewable energies fails because of "non-existent" & "too expensive" storage options. At the same time, most arguments against #VisionZero are reduced to lithium-ion batteries, their costs and their environmental balance. Here is an overview of chemical and mechanical storage options that are affordable & feasible with current technology.

ETH Zurich Energy Storage Handbook: "From today's perspective, the Energy Strategy 2050 is technically feasible. The necessary storage technologies are available - today on the market, marketable or demonstrably realisable."
https://doi.org/10.3929/ethz-b-000445597

Siemens Gamesa ETES: Electric Thermal Energy Storage https://www.siemensgamesa.com/products-and-services/hybrid-a...
https://www.zdf.de/nachrichten/heute/vulkansteine-als-stroms... With these storage systems, in which electricity is converted into heat and this heat is converted into electricity via steam, significant parts of existing power plants can continue to be used!

DEMIKS - Decentralised energy storage by means of integrated kinetic rotational mass storage (in connection with wind turbines) Long name, proven concept increased to 500 kilowatt hours
https://www.energiesystem-forschung.de/forschen/projekte/dem...

Pumped storage power plants. Normal in Austria, Switzerland, Norway, for Germany only in a roundabout way https://www.tagesschau.de/wirtschaft/technologie/nordlink-su....

Continue building pumped-storage power plants:
https://twitter.com/senortenor/status/1450777953844006913?s=...

https://www-ingenieur-de.translate.goog/fachmedien/bwk/energ...

Storage

Keeping the grid reliable as solar photovoltaics and wind power (both with accurately forecastable but large variations in output) come to dominate electric generation requires changes in markets, institutions, operations, habits, and mental models. This has proven feasible in both theory and practice, as illustrated by national statistics’ reports of 75 percent renewable coverage of annual electricity consumption in Scotland (2018), 72 percent in Denmark (2017, domestic production only), 67 percent in Portugal (2018), 40 percent in peninsular Spain (2018), and 38 percent in Germany (2018). Most such grids sometimes achieve over 100 percent renewable supply, just as Japan’s southern island of Kyushu reported 76 percent peak solar coverage on 23 April 2017 1008, and Shikoku 102 percent on 3 May 2018 1009, despite Japanese utilities’ insistence that far smaller renewable fractions will crash the grid. No “storage miracle” is needed, though some seem to be emerging. Whether solar, fossil-fueled, or nuclear, no generator needs 100 percent backup, because one generator does not serve one load; rather, all generators serve the grid, which in turn serves all loads. The grid is designed to back up failed plants with working plants, so varying solar and wind power output are backed up by a diversified portfolio of other variable renewables, dispatchable renewables, or other resources. Solar and wind power don’t need massive batteries so they can produce power steadily like big thermal plants; rather, at least eight classes of grid flexibility resources (A) besides bulk electrical storage and fossil-fueled backup are proven, available, cost-effective, and sufficient.(B) We don’t and needn’t yet know all details of their ultimate mix as renewables rise toward 100 percent of generation; for now, we need only know that ample and affordable integration options exist.(C) As climatologist Prof. Ken Caldeira says, “Controversies about how to handle the [electricity] endgame should not overly influence our opening moves.”

(A) Efficient use; 2. unobtrusively flexible demand; 3. modern forecasting of variable renewables’ output (often more accurately than demand); 4. diversifying those variable renewables—wind and solar PV—by type and location; 5. dispatchability—integrating wind and solar PV portfolios with the other renewables (not counting big hydropower, which could also be integrated more effectively than now and with cogeneration that must run anyhow to satisfy its thermal loads; 6. distributed thermal storage worth buying anyway, or managed thermal storage in buildings’ existing thermal mass; 7. distributed electrical storage worth buying anyway (e.g. smart charging and discharging of electric vehicles bought to provide mobility); 8. hydrogen, now most likely from renewable electricity.

(B) https://www.sciencedirect.com/science/article/abs/pii/S10406...

(C) https://www.sciencedirect.com/science/article/pii/S136403211...

https://www.worldnuclearreport.org/The-World-Nuclear-Industr...