Reuters: Awareness is low, but 63 percent of those who had a view on it favor a California ballot measure that would require half the state’s electricity to come from renewable sources by 2025, a Field poll issued on Tuesday shows. Voter awareness of Proposition 7 on the November ballot is extremely low — 82 percent of those interviewed said they did not know of the measure. Phone interviews of 672 likely voters were conducted last week, Field Research said. Voters were asked opinions …