SBSP Survey Paper by Eric Kulu
At the 2023 International Astronomic Congress (https://www.iafastro.org/events/iac/iac-2023/), Eric Kulu published a paper surveying the state of SBSP. His research has described all the active participants in this vertical, which are still only a handful. If you are interested in this topic, this is a good reference.
https://www.factoriesinspace.com/graphs/Space-Solar-Power-2023_Erik-Kulu_IAC2023.pdf
