Posted for "Jack Cowell" <jcowell@nyc.rr.com>:

ThermaWing first began developing a de-icing system for the IVP.  In fact,
many of the components for the prospective certified system (alternator,
voltage regulators, control/annunciator panel, wiring, etc.) went on the IVP
first. The proof of concept development and component testing were all done
in NASA's icing tunnel in Cleveland, OH as well as in actual flight tests on
various aircraft.  A NASA grant funded a good deal of this work, and after
the testing was completed, NASA ordered several systems for its own
aircraft.   The final system for the IVP is scheduled to be flight tested in
April.

Two further points:

1) The electical infrastructure which powers the de-icing system de facto
provides a second standby alternator (100 amps).
2) This will also power a DC compressor-based air conditioning system..but
it will not be fitted for several months.

Cost?  It should be lower than any other adaptable de-icing system.   For
more information and news updates, try the
ThermaWing web site: http://www.airplanedeice.com