What is the best, recommended Software for "calculate, design, simulate, analyze ..etc" Solar Project " off-grid on-grid systems,street light.. etc" ?

HOMER Micro Grid Simulator

@Talal Alghamdi @Kamal Al-Hendi Thanks a lot guys

you can ues this free software :sunny desin >>>>its online soft ware uese to select PV and inverter for project ,present by SMA company

Homer>>>>>its have a free version on its website and paid version , usefull for hyprid system and  multi project on grid /off grid

PV sys<<<< ues as stmulate the result and shadow anlysys and selction for Pv systems

Revent >>>> its simalr to auto cad3d but  have more usful tools and ues for design and shadow anysis

Hi,,

you can visit this website http://www.retscreen.net/ar/home.php

maybe you will find what you want

B.R

T Alghamdi

1. PVSyst - This software can be used to design and simulate both grid connected and off grid solar PV system

2. Sunny design - Can be use to design and simulated PV system grid/off grid using SMA product

3. Relux lighting design software- use for design Streetlight projects

4. Lighting Reality- use for design streetlights

I would go with SAM. It has the physical, electrical and economics with excel integration and good reports. 

PV SYST FOR ON-GRID SYSTEM

the best programmer for solar design :-

1- pv syst 

2- poly sun 

I advise you to use:

Homer for hybrid systems analyses it's an excellent software

PV syst for grid connected systems 

Bluesol for protection design