Consolidating two electricity meters?
1:Hunch would appear to be likely correct.
2C:Cons: Probably costs more per month to have two services. You'd have to check. There's typically a charge per service and a charge for use, at least in my part of the world, and I expect that to be similar elsewhere.
Shutting of &quot;the power&quot; in an emergency is not one place, but two.
Increased risks if someone less than fully knowledgeable about the weirdness in this house does any electrical work.
2P:Pros: depending how separate the two providers really are (if they use separate distribution) might be less chance of a power outage affecting both sides of the house (this does not apply if they use the same shared distribution network and are merely separate entities that put power into and sell it from the shared grid.)
3:I'd guess it might be a paperwork nightmare. You'd have to choose a utility to keep and contact both (or all three if you can and do choose a third one) to work out the details. To actually solve 1, you might need rewiring so that one meter feeds both entrance points, otherwise you might be paying for two services to the same provider.
4:Probably not, other than the implications of 3 and 2P, if 2P even applies.