leading phase मीनिंग इन हिंदी

As for solar panels, any power would be converted to AC before being pushed into the grid, and again the electronic circuit would have to provide a sinusoidal voltage at a leading phase angle.
If your ( mechanical ) generator is in synch with the grid, then you put more power to it so that it wants to turn a bit faster, you create a leading phase angle and you push power to the grid.