1/ Use a series of Solar Cells to form the transmission line.
2/ The transmission line is made of Solar Cells anchored onto a piece of support.
3/ These Solar Cells are connected in series.
4/ So the Voltage at the receiving end will be n x Voltage output of a Solar Cell ( n=no. of Solar Cells).
5/ Install Lights which will be turned on when there is no Sunlight.
6/ These lights will shine up the Solar Cells when there is no Sunlight & will continue to supply electricity.
7/ These lights will not block the Sunlight from entering the Solar Cells.