There
are
currently
only
a
handful
of
utility-scale
floating
concepts
undergoing
testing
off
Europe
and
Japan.
But
number
crunching
by
GL
Garrad
Hassan
suggests
the
economics
of
floating
wind
farms
are
becoming
more
attractive
by
the
day,
with
construction
of
a
500MW
development
in
50
metres
of
water
potentially
costing
as
little
as
€0.128/kWh
–
“if
steel
prices
were
lower
-
and
hull
costs
cut”.
The
DoE
grants
will
advance
the
cause
of
the
two
front-running
designs
–
Norwegian
energy
giant
Statoil’s
Hywind
spar
buoy
and
US
start-up
Principle
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