Criteria for off grid inverter selection :Model and rate power, Inverter Efficiency, Protection Devices, . Pure sine wave , Surge capacity. Charging Method, Programmable supply priority, Certificates:, Multiple communication for USB, RS-232, Modbus and SNMP. Parallel operation Integrated with surge arrestors type II

3. • To select the proper and best DC batteries for
solar applications
• To select the proper and best off Grid inverter
for solar applications
• To select the proper and best PV solar Panels
for solar applications
• To select the proper and best DC and AC surge
arrestors for solar applications

4.  SMA battery inverter, Voltronic infinsolar, Schneider XW+,scheinider , THE
MAGNUM-DIMENSIONS BRAND, tesla
overcurrent, earth fault, overcharging battery protection, over/under frequency and
reverse power, over/under voltage
Need as much as 2x–3x their running power to start up.
Grid-tied capability
• Certificate and standards
• Warranty : more than 5 years

5. 6. Programmable supply priority for PV, Battery , Grid or hybrid PV with Grid
7. Charging Method : 3 stage charging
8. Compatible with string inverter for AC couple inverter
9. Include all necessary data cables , temperature sensing
10. Certificates:,
UL 1741, IEC 61683, IEC 62109-2:2011, AS/NZS4777.2:2005 , EN 61000-6-3:2007, DIN V
VDE V 0126-1-1:2006 , EN 50524, EN 50530
11. Multiple communication for USB, RS-232, Modbus and SNMP
12. Parallel operation
13. Integrated with surge arrestors type II

6. Infinsolar Brand SMA Brand

8. Next Lecture

9. References