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Release Notes 1.40/1.40.1

Jonas Žemaitaitis

In this release (1.40.1):

  • Patch for issue related to EW module generation with custom azimuth

In this release (1.40):

  • Voltage Drop and Cable Cross Section in SLD.

  • Edit Roof Shading Objects' Properties.

  • Stringing improvements:

    • Custom Stringing guidance for stringing different module types together;

    • Stringing detection when more than one layer of modules is detected;

  • Support of maximum degrees of azimuth.

Voltage Drop and Cable Cross Section in SLD

To further streamline engineers' workflow in one platform, PVcase Roof Mount now has the ability to provide suggestions for cables' cross sections in the SLD diagram based on the cabling design and engineers' desired voltage drop % for each string.

The voltage drop is determined for the entire string, encompassing both the - and + cables, which share the same cross-section throughout. The total string cable length accounts for the - and + cables, extensions, and the cables connected to the modules. It's essential to consider this entire length for the DC circuit of the string.

To access this feature after cabling is generated:

  • Go to Settings and select the relevant electrical standard:

    • IEC (IEC 60364-1)

    • NEC (NEC 2020 Article 690)

  • In the Electrical Design modal, go to the Cabling tab. Click 'Cable Sizing'.

  • Enable Cable Sizing by checking the box.

  • Enter module Vmpp and Impp,

  • Select cable material: Copper or Aluminum.

  • Enter the desired voltage drop %.

  • Print SLD to see the suggested cable cross-sections based on the standard user selected.

We will introduce more voltage drop and cable sizing capabilities in future releases. Stay tuned!

Edit Roof Shading Objects' Properties

With this release, PVcase Roof Mount enables quicker iterations as users can easily edit shading objects' properties without having to recreate shading objects. Users can select the object itself to adjust object dimensions and offsets.

Users can evoke editing by:

  1. Selecting the object.

  2. Right-click to find Roof Mount in the drop-down menu.

  3. Click 'Edit Object'.

  4. Save settings by clicking 'Update'.

This editing feature is available for rooftop shading objects:

  • Blocks

  • Chimneys

  • Skylight

  • ACs

  • Smoke Ventilators

We currently do not support editing restriction zones, trees, or nearby shading objects. However, we will introduce more editing capabilities in future releases.

Stringing improvements

Custom Stringing guidance for stringing different module types together

To increase design accuracy, when the user performs Custom Stringing, the PVcase Roof Mount system will automatically detect when the user is trying to string together modules of different types (orientation, tile, azimuth) and ask the user for confirmation if they would like to continue stringing or not. This adds another layer of protection and checks for engineers to ensure their design is according to their best practices.

Stringing detection when more than one layer of modules is detected

For cases where there are modules accidentally on top of each other, our system will stop stringing from being executed to ensure the file is clean and correct for future operations. If the user sees this warning when performing stringing. please check the areas with overlapping modules and remove a layer of modules accordingly.

Support of maximum degrees of azimuth

PVcase Roof Mount now supports:

  • 90 and -90 deg azimuth for Flat South

  • 0 and 180 deg azimuth for EW

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