Uhhhhhhh...You might want to rethink that.
I knew that wasn't true.
So I went to look it up.
Found this on Wikipedia:
"As of 2014, 33.0% of electricity was imported, and of that, 45.4% was of unspecified origin."
https://en.wikipedia.org/wiki/Energy_in_California
33% seemed high and I never take Wikipedia as gospel
So I found this
http://www.energy.ca.gov/almanac/electricity_data/electricity_generation.html
California grand total power generation plus imports. 295,405 gigawatts.
California instate power generation 196,194 gigawatts
Almost 100,000 gigawatts, about 33%, is imported to California.
I’ve been corrected.