Wind,
solar
and
hydro
are
forecast
to
become
the
second
biggest
power
generators
in
2015
and
rise
to
almost
one-third
of
all
output
in
2035,
a
level
approaching
that
of
coal,
the
Paris-based
energy
watchdog
says
in
its
annual
outlook.
“The
rapid
increase
in
renewables
is
underpinned
by
falling
technology
costs,
rising
fossil-fuel
prices
and
carbon
prices,
but
mainly
by
continued
subsidies,”
says
IEA
executive
director
Maria
van
der
Hoeven.
The
IEA
points
out
that
these
subsidies
will
have
to
be
carefully
managed
and
consistent;
the
world’s
transmission
system
will
have
to
be…
