In terms of power output, I'm certainly happy to add that as a mod option, will add that to my list of things when I finally get some free time (soon tm).
I'm quite happy with the power output as it stands at the default though, it was always intended as an improvement to solar rather then a nuclear power competitor, and if it were to take up the exact space as nuclear while still being about to work 24/7, as well as how energy dense steam storage can be, I think it would quickly become very unbalanced (see the other existing concentrated solar mod).