I don't know of any US Kraftwerk-clones.
However, if you have the chance, listen to the only worthy KW-clone there is:
Swedish group 'Spacelab'. Actually it seems they don't do KW-impersonations
anymore, but older songs like 'Elektronik Confusion','Space is big, man is
small' and 'Artificial Intelligence' really beats the shit out of *every* other
KW-clone I've heard. It is partly because these guys built their own vocoder,
and believe me, I have *never* *ever* heard any vocoder that sounds cleaner or
more f**kin' phat than this one. If anyone has spotted the almost hidden
vocodersounds on Source's Organized Noise, I can tell you: that is a Spacelab
vocoder. This fact goes back to the fact that both Spacelab and Source (aswell
as Cerebus aka Braincell, Spasm, Lovecraft and RND) used to work for the
Stockholm-based label Ohm which crashed in May 1992.
Ok,let's assume you're not interested in Kraftwerk, but like ambient music.
Then let me tell you this: In my opinion, Spacelabs self-titled CD (out on WEA)
contains the best ambient tracks that exist in this spacetime. Any serious
listener of ambient music should immediately try to find the CD in order to
listen to the tracks Outside An Airlock, When Time Means Nothing and
Nighttrain. They are the perfect link between furniture-music a la Eno and
semi-trance ambient a la Biosphere. They are *clean*. Immaculate production.
And still there is a lot of emotion in them.
Fredrik / RND