From what I've read, the Bussard ramscoop has problems which make it impractical as a means of propulsion. However, would it be possible to use it for a different purpose? Could a space station or lunar base (anything that's not protected by a magnetic field) make use of a ramscoop, one that's directed towards the Sun? This would protect the station/base from the solar wind, and also allow it to harvest the solar wind. There isn't much material in the solar wind, but it might allow a station/base to make up for losses without needing imports.
It might be especially useful for a lunar base because the main element in the solar wind is hydrogen, which is scarce on the Moon (relative to the Earth), and could be used to refine metals from their ores, producing water as a useful byproduct.