Simple

• Optimal design for grid-connected PV plants
• Tips aimed at plant optimization
• Free download

Comprehensive

• Database of all PV modules currently available on the market
• Use of high-resolution meteorological data
• Worldwide location support
• Automatic dimensioning of the cable lengths and cross sections
• Energy analysis over a period of one operating year

Changes in Version 1.55

• When starting the program or creating new projects, the location most recently selected is now automatically set as standard location.
  
  
• The cabling calculation has been improved. The graphic display also shows the MPP voltage on the DC side. The DC cable cross-sections entered can now be indicated per string. The resulting overall cross-section is displayed as well.
  
  
• Changes of the module type or generator alignment in step 1 will always affect all inputs of the Multi-String inverters in the same way. Changes which have possibly been made manually are overwritten on string level. The inputs can still be differently configured via the Multi-String side.
  
  
• The checking procedure of string open-circuit voltages that are too high has been corrected.
  
  
• New inverters: 
  - Sunny Central 630HE-11 (60Hz)
  - Sunny Central 630MV-11 (60HZ) 
  - Sunny Central 1250MV-11 (60Hz)
  - Sunny Central 720CP (700kVA/315V) 
  - Sunny Central 760CP (740kVA/333V)
  - Sunny Central 800CP (780kVA/351V)
  
  
• The module database was extended by more than 234 new modules.