Eventually we're going to have to reduce the sunlight hitting the Earth because the Sun is getting ~6% hotter every billion years [1]. The Earth is set to become uninhabitable in ~1.6 billion years [2] because of it.
Here's what I think will actually make sense: put space orbitals and power collectors at the Sun-Earth L1 Lagrange point (roughly 1.5M km from Earth). This is readily accessible in terms of planetary distances, will involve minimal communication delay with Earth and if you build enough of them you can reduce the solar output hitting the Earth however much you want with little to no visible impact from Earth.
Here's what I think will actually make sense: put space orbitals and power collectors at the Sun-Earth L1 Lagrange point (roughly 1.5M km from Earth). This is readily accessible in terms of planetary distances, will involve minimal communication delay with Earth and if you build enough of them you can reduce the solar output hitting the Earth however much you want with little to no visible impact from Earth.
[1]: https://usm.maine.edu/planet/sun-getting-hotter-if-so-why-wi...
[2]: https://www.smithsonianmag.com/smart-news/weve-got-15-billio...