A gentle warning: This will reduce the Range of Power Poles, Substations and Roboports. If you use this in an existing game you will most likely have gaps.

Resizes the roboport area to fit exactly one chunk, i.e, makes it a bit smaller. Also reduces production and energy cost to balance this.
Increases the big power pole wire range to span one chunk.
Changes the substations to cover one quarter of a chunk.

If you have Bob's Logistic enabled this will also change the other roboport tiers (as well as some other related entities) to cover 2x2, 3x3, and 4x4 chunks.
If you have Bob's Power enabled this will also adapt the higher tiers of large power poles and substations.

If you have Industrial Revolution installed, it will adapt the default roboport to two chunks and (keep) the robotower at one chunk.

If you have Krastorio2 installed it will adapt the roboports to one, two and four chunks wide.
It will also adapt the MK2 Substation to two thirds of a chunk.

With 248K the fission roboport will now cover 4x4 chunks. This one is not exactly chunk aligned as it has a size of 3x3. However, if you place them at the same offset every 4 chunks they will be seamless.