this post was submitted on 22 Aug 2025
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Wouldn't that bring more solar energy to earth and contribute to energy imbalance?
Trivial amounts compared to the solar energy hitting the entire surface of half the Earth.
The problem isn’t incoming energy, it’s outgoing energy. Greenhouse gases reduce the amount of energy radiated back into space and that’s what increases the mean global temperature.
Adding a few hundred square miles of surface area wouldn’t change much.
In short. Presumably the idea would be to 1. only beam down what is needed, and 2. have it replace fossil fuels, which are very much responsible for the change in the planet's energy imbalance.
It would also reduce the energy cost of less efficient 'on Earth' solar arrays, which have problems like intermittency that orbital solar panels wouldn't have.
IF this is anywhere near technically feasible it seems like exploring the idea publicly like this isn't a bad thing.
BUT, after a couple decades of watching proposed miracle tech going nowhere, I can say that ultimately hopium really isn't healthy: we needed to get real a decade or two (or three or four) ago. Relying on non-functioning future tech like carbon capture/storage (or this, if it isn't actually feasible) is nothing more than justification for not making necessary changes now.