hydro electric dams and wind turbines exist since, at least, the 1880s. [^1][^2]

and if wasn't for ronald reagan, the united states might have achieved 20% solar power energy production before the year 2000. [^3]

these are not new (two decade) technologies.

[^1]: https://en.wikipedia.org/wiki/Hydroelectricity#History

[^2]: https://en.wikipedia.org/wiki/Wind_power#History

[^3]: https://en.wikipedia.org/wiki/Solar_power#Development_and_de...