They are "inversores" in Spanish and Power Inverters in English.
they range in price from RD$10,000 to RD$45,000+ depending on the size. This topic has been widely discussed and agrued over on this board. Do a SEARCH for things like "inversores" or "inverters" and see what comes up. Depending on you pocket book, you can run anything you want on them....Price goes up depending on how much you want to run.
HB