The
California
company
would
test
a
market
that
three
other
clean-energy
companies
have
found
unfavourable
for
a
public
offering
in
recent
weeks.
SolarCity
says
it
made
a
confidential
submission
last
week
of
a
draft
registration
statement
to
the
Securities
and
Exchange
Commission.
A
stock
offering
would
begin
after
the
document
is
reviewed,
the
company
says.
The
San
Mateo-based
business
with
operations
in
14
US
states
has
been
a
top
clean-tech
candidate
for
an
IPO
and
was
one
of
several
that
analysts
thought
would
be
part
of
a
wave
led
by
utility-scale…