Small Solar Systems
I am new graduated electrical and electronics engineer and working a company which Works on solar and wind energy systems. My boss wants me to design some small solar systems on roof. (like 1 kW, 2kW, 5 kW, 10 kW and 25 kW). These systems will be off-grid or grid-tied according to what client wants.
For an off-grid system my equipments will be, pv panels, inverter, voltage regulator and accumulator. How should i choose these equipments. What voltage values should my equipments(panel,inverter,accumulator) be? I mean, they should be compatible with the others. Can you explain me how to decide that?
My second question is about grid-tied systems. If the house needs more power than the PV system can supply, then the extra is drawn from the grid as usual. Does inverter do that job? What kind of inverter should i choose? Do i need any other equipment?
If you can help me, i would be very appreciate. Because i am new at this job and i want to learn more and improve myself.
Thank you from now