The California drought impacts substantially how the Golden State powers itself.
In 2011, California got 21.3% of its electricity from hydro. With drought slashing river flows, hydro now generates 13.8% of its power. Ouch!
Falling hydro production must be replaced by something else. And natural gas generation has provided the replacement.
The fall in hydro production causes a sharp rise in natural gas generation that has shot up from 45% to 61% of California's total electricity. In other words, the share of its electricity that comes from gas has increased 34%, as a result of the drought.