After
launching
a
challenge
before
the
Federal
Energy
Regulatory
Commission
(FERC)
earlier
this
year,
the
wind
generators
are
now
filing
cases
at
the
Ninth
Circuit
Court
of
Appeals.
To
keep
its
system
in
balance
during
a
spring
in
which
river
levels
were
the
fourth
highest
since
1929,
the
BPA
–
which
operates
transmission
and
markets
power
from
the
federal
dams
on
the
Columbia
and
Snake
rivers
–
forced
wind
generators
to
shut
down,
serving
their
loads
with
the
surplus
hydroelectric
power.
The
policy
is
called
environmental
redispatch,
because
one
of
the
justifications
the…