I have a bias toward space-based solar power. I wrote a paper on it while I was in college on alternate energy source. Hence, articles like this get my attention:
A new global race is heating up to develop technology for transmitting solar power collected in space to Earth, with a Japanese public-private partnership aiming to run a trial around fiscal 2025.
Space-based solar power was proposed by an American physicist in 1968. The concept is to launch solar panels into space to generate electricity at an altitude of 36,000 kilometers.
At this time I’m inclined to believe it will not be competitive with other sources. The greater availability of solar and higher intensity of the solar energy in space does not appear adequate to compensate for the higher conversion and transmission losses compared to land based solar. And that doesn’t even compare it to the best terrestrial sources such as nuclear and hydroelectric power.
Still, I’m interested to see the results. Perhaps it will be useful in some special cases such as quickly getting power to remote locations.