PV Gap

Myrtle Said:

how do they get solar or wind power electric in phase with the power line?

We Answered:

Actually the 2 "legs" are 180 degrees out of phase, but this is because of the way the transformer is wired. A "high-line" feed is somewhat different.
"High-lines" are 3 phase, and more efficient than home lines; and home power is single phase drawn off one leg of the "high-line."
They use a "synchronizing" circuit on the inverters that feed power into the "high-lines," similar to the ones used on ALL paralleled generators to keep the generators in phase.