Right now only two orbital interlinks can be joined, which is unfortunate cause sometimes you need way more power and sometimes you'd like to transfer energy between your main base and an outpost way away from it, but because the platform can only link with that one in the main base and then can't make itself equal with the other orbital interlinks on the platform, you just can't.

It would be awesome to have the ability for one of the orbital interlinks to connect with multiple others, enabling bigger throughput by enabling one platform to have few interlinks connecting to the surface below or transfer between surface bases by one interlink connecting with all that need power and equalizing them with those which have more than plenty.

Right now, "bouncing" power from one location to another isn't structurally possible, as pairing makes the assumption of point-to-point transmission and there is not a clean way to operate it in lieu of that assumption. If I can figure out mod GUI, I have some thoughts on a manual tag mode that can provide enhanced functionality (i.e. one-way reception from multiple transmitters and planet to moon transmission), but my previous attempts to figure that out have not been particularly fruitful.

Couldn't it be possible by somehow balancing power transfer on a seperate system, like the connection between point 1 and "SP" and then another between point 2 and "SP", letting them balance on different ticks. That could also make it a bit more balanced and force players to use more, the only issue might be lag caused by too many connections happening at once...

Not with the current code. Right now, balancing between point A and B is instantaneous, and the integrated accumulators are used as a gauge of demand; with the improvements I've been ruminating on (again, no ETA), which point is the receiver and which is the transmitter could be specified, and multiple transmitters could easily be accommodated.