Answer:
Alternative power access for the brother is much less convenient and it would cost 100 times as much.
Step-by-step explanation:
When the brother succeeds in stopping the daughter from cutting the powerlines, this will be because the brother's alternative power connection is far less efficient and would cost 100 times as much as the present system.
This goes to prove that now the operation of law ("quasi-easement") implied an easement.
An easement may be inferred if a use occurs on the "servient part" before the time the property is divided, which is reasonably practicable for the benefit of the "dominant part," and a court finds that the parties planned the use to continue after the land was split.
To inevitably lead to an easement, a use at the time the property is divided must be apparent and continuous.
The landowner, in this particular instance, was using the servient part of his land (the southern parcel) to operate overhead wires lines to the dominant part of his land (the northern parcel).
Horizontal cables are clearly evident on fair examination, and will be readily discoverable. So the lines are clear. Usage always needs to be fair.
If a use is reasonably practicable depends on many things, including the alternatives expense and complexity.