Just to share my own research: Media Matters did the initial work digging up and "cancelling" MTG's Facebook post. Because 2 of the several families she mentions while "posting this in speculation" are Rothschild and Blum-Feinstein, this was morphed into "Jewish lasers" complete with Fiddler on the Roof puns. Her original post was tame compared to those here every day.

She cites a link (archived) that she seems to attribute to March 2018 where they "announced the launch", which seems an inaccuracy. The link announces a PG&E-Solaren partnership and originated 5/26/09, at which time the launch was hypothetical and many years out. Solaren admitted the partnership last week, continuing the use future language ("will be the world’s first space solar power plant") and added, "In 2015, Solaren and PG&E mutually agreed to forgo the power contract", unable to finance the satellite.

Several technologies are planned. Solaren claims radio waves, but they may mean microwaves (DOE explanation). Greene seems also to have confused this with laser technology (popularized in Real Genius). It appears that on 5/17/20, US Space Force orbital test vehicle 7 was launched and included the first public solar power satellite module, which is also microwave-based.

In short, Greene's theory was more movie-based but was not far from the then-current technology. It is unlikely that any satellite has been launched secretly, but there are certainly satellites with secret technologies. The theory needs airing of the witness interviews, which were not linked and which are a major factor. Given the remaining cronyism she called out, which is better linked (Jerry Brown being a Q topic), it would be a much likelier theory that the Camp Fires included traditional arson than a billion-dollar laser test. Greene has backed out from the full details of this theory, but should not be canceled simply because she posted coincidences and not-implausible links for research and because the demographics of her research targets were racially mined.