Easy to use

• Optimal design for grid connected PV systems
• Target-oriented suggestions for system optimization
• Free download

Comprehensive

• Database with all common PV modules
• Use of high-resolution meteorological data
• Worldwide choice of location
• Automatic computation of the cable lengths and cable cross sections
• Energy analysis over an operating year

This update includes the following changes and improvements:

Sunny Design 1.52 (December 2009)

• In order to make sure that Sunny Design is compatible with Windows Vista and Windows 7, the locations where to save project files and own modules have been adjusted to the specifications of the operating system.
  
  
• The automatic distribution of the modules to strings was optimized for the Sunny Tripower. It considers recommendations referring to the assignment of the two inputs.
  
  
• The minimum PV module temperature which can be set was reduced from -25 to -40°C.
  
  
• The calculation of the currents of Multistring inverters was optimized.
  
  
• Slight rounding errors when calculating the generator's peak power and the open-circuit voltage were settled.
  
  
• The module database was extended by more than 180 new modules.
  
  
• The weather data selection was expanded by 25 locations in 14 countries:
  
  
  • Germany: Cologne/Bonn, Rostock, Hanover, Saarbrücken, Leipzig/Halle, Regensburg
  • Bulgaria: Sofia, Varna, Pleven, Kardzahli
  • Morocco: Casablanca
  • Algeria: Algiers
  • Tunisia: Tunis
  • Egypt: Cairo
  • Botswana: Gabarone
  • Namibia: Windhoek
  • Mozambique: Beira
  • Zambia: Lusaka
  • Jordan: Amman
  • Syria: Damascus
  • Slovakia: Zilina, Kosice, Banska Bystrica
  • Slovenia: Ljubeljana, Maribor