Fork of Power Grid Comb by Shane Madden, updated for Factorio 2.1. The original is built for 2.0 and earlier.

An area-selection tool that removes and instantly replaces the copper wiring between electric poles. It cleans up messy power cabling caused by bots building poles out of order, and leaves circuit wiring alone.

Usage

• Click the Power Grid Comb shortcut (or find it in the cursor tool list) and drag over an area.
• Select: poles are rewired along straight horizontal and vertical lines first. Where that isn't possible, the closest pole in the same network is connected.
• Alt-select: only connects poles that are directly north, south, east or west of each other.
• Separate electric networks are never joined together.

Notes

• Requires the Factorio Library.
• This mod is incompatible with the original power-grid-comb, because both add the same item. Disable the original before using this one.
• Based on the 2.1 update in PR #15 by hf-xz. Original concept thanks to /u/BeanBayFrijoles.
• MIT licensed. Source and issue tracker: https://github.com/AlexFigas/factorio-power-grid-comb