Solar String sizing for the inverter | Solar Energy System Design | edX Series

Very good presentation.
Do you have a soft document on solar system installation?

Info is good. A little stronger voice would help immensely. Thank you for the time you put into this.

My calculation is correct

Invertor technical specification

Max. input voltage 1.100 V
Operating voltage range 140 V ~ 980 V
Start-up voltage 200 V
Rated input voltage 600 V
Max. input current per MPPT 13.5 A
Max. short-circuit current 19.5 A
Number of MPP trackers 2
Max. input number per MPP tracker 1

Solar Panael 570W (STC)
Maximum Power (Pmax) 570W
Maximum Power Voltage (Vmp) 42.70 V
Maximum Power Current (Imp) 13.35 A
Open-circuit Voltage (Voc) 51.80 V
Short-circuit Current (Isc) 13.81 A
Temperature coefficients of Voc -0.25%/C

9 solar panel / string (2 string total 18 panel)
max Voc / sting (in +25C STC) 9 x 51,80 V = 466 V
max Voc / string (in -20 C) 9 x 57.63 V = 518.67 V
51,8 V * 0.0025 = 0.1295 V dif -1C
-20C <-> +25C => 45C dif
0.1295 V x 45 = 5,8275 V
51,8 V + 5.8275 V = 57.63 V

Good presentation, no one have presented the sizing better than u did, thank you very much but i would like to know more about sizing the battery capacity of that inverter as example

hi, when you say module, is it the PV Panel?. in other publications says, the module contains cells, the panel contains the module. Also, you mentioned Strings, does it mean an Array or group of PV Panels, thank you so much for the video

You didn't take temperature factor correction in consideration for Voc calculation be careful

Good video, just one question about the maximum voltage, if two string sets method is used then the voltage that goes to inverter is still the same(917V as per your calculations) just divided it in two but the inverter is still getting 917V?
Thanks

how did you calculate Voc ,Vmp ,Isc and Imp of the 24 modules

Good info.

' oh no,my God is really precious .

Great video

One thing that is unclear is Operating Voltage and maximum input voltage? So if you had 530v it would not work? yet its under the maximum input voltage?

This is the best EVER explamation I have seen on sizing the inverter.

Thank You!

I have inverter with 27a mppt
Can i attached 2 strings of 580w solar panel its 14 amp*14amp little bit increase in amps also these is losses so i hope i can install plz help me

A playlist would be excelent, most people won't consider the temperature effects, let alone the shading. Very good series

Exactly what I was looking for

tks for your information