I called the insurer of Hoyt's ES and got the lowdown on what happened.

Hoyt had is ES in for some work on the left wing.  The fuel had been
transfered out of the left wing and into the right.  So there were only
vapors in the left tank.  It is suspected that there was a static
discharge when the fuel filler cap was removed on the left wing.  This
caused the vapors inside the wing to explode.  The bottom of the wing
was separated and the left wing burned.  It was not initially apparent
that the inside of the fuselage was smoldering because the door was
closed.  Once it was discovered, it was extinguished also.  There is
smoke damage to the interior.  Left wing is totaled.  The control
surfaces were all removed and were not affected.  The tail was not
affected.  The engine and firewall forward was not affected.  The
electronics have not been energized but are expected to be operable.

The engine has plasma ignition and 100 amp alternator.  AeroComposites
propeller.  It also has an air conditioning system.

The repair cost (retail) was too great for the insurance company to
pay.  (ie. insured value was less than estimated salvage value.)  So it
will be salvaged.

The insurance company wants to sell the entire remains as salvage.  Any
one interested?  If anyone needs an engine, this may be a good deal.

Mike Salzman
Fairfield, CA
LNCE