Free
Medium Voltage Calculations
Complete Tool for High Voltage Electrical Installations
Free
Complete Tool for High Voltage Electrical Installations
Paid
SLD Electrical Diagrams: Create Professional One-Line Diagrams Easily
Free
Create Your Own Electrical Installation Diagrams
Free
A free app for Android, by Ángel Martínez.
Free
Lighting Calculation - Android App
Free
PV Module - A Photovoltaic Panel Simulator