The
micro-grid
project
is
in
its
early
days,
but
the
young
engineers
in
charge
say
they
are
already
making
savings
by
switching
to
stored
energy
during
the
daytime,
when
electricity
sold
by
the
municipal
grid
hits
peak
prices.
The
results
are
promising
for
all
of
China’s
wind
companies.
Energy
storage
could
be
one
of
the
solutions
to
the
biggest
obstacle
facing
expansion
of
the
country’s
wind
industry
—
grid
curtailment.
Curtailment
—
when
a
grid
operator
orders
a
wind
farm
to
shut
down
turbines
—
has
hit
extreme
levels
in
recent
years,…
