[jahnu]

> A fully renewable energy system is probably always going to be more expensive per unit than a fossil fuel based one.

No probably not at all unless you mean in the short term. The fossil industry gets way way way more financial support. The externalities of fossils are costing us incredible amounts of money, health and lives and will do for many many decades if not centuries to come. Renewables are now cheaper than nearly anything despite decades of suppression by the fossil industry.

https://www.imf.org/en/blogs/articles/2023/08/24/fossil-fuel...

https://ourworldindata.org/how-much-subsidies-fossil-fuels

https://www.eesi.org/files/FactSheet_Fossil_Fuel_Externaliti...

https://www.irena.org/News/pressreleases/2025/Jul/91-Percent...

https://sps.columbia.edu/news/fossil-fuel-industrys-ceaseles...

[padjo]

If you ignore the increased grid complexity and need to over provision then sure.