Panel 2.0 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The program's installer files are generally known as 748_PANELADO.exe, aplicacion maestra.exe, Panel.exe, PanelKeyboard.exe or Pnl.exe etc.
The most popular versions among the software users are 2.0, 1.1 and 1.0. The actual developer of the program is Elite Software Development, Inc. We recommend checking the downloaded files with any free antivirus. The program is included in Education Tools.
From the developer:
The Elite Software Panel DOS based program automatically sizes all the components (cables, bus ducts, transformers, etc.) in an electric power distribution system in accordance with the National Electric Code. In addition, panel schedules for general purpose panels, motor control centers, and switchboards can be printed. Panel allows the designer to define an electrical power system (up to 1,000 buses) with loads and associated power factors.
You may want to check out more software, such as Open Game Panel, FS Panel Studio or RESTrick Control Panel, which might be similar to Panel.