It's worse than that. SWB pumps require 25Hz power (consider US power is typically 60Hz and European power is 50Hz). This means that the generators (or transformers) to power the pumps have to be custom, and fixing the generators and pumps requires specific expert knowledge.
So you have to replace all the pumps and generators (as I understand it) as it would be close to impossible (or equally expensive) to retrofit it all.