So you are trying to build a table of peer IPs and geolocate them to their local electricity price ? You should really read Douceur's sybil attack paper and let it sink in for a few days, then take another stab at this.
Ascertaining the densest geographical location of nodes was an example that could be used to determine the typical electric prices of miners that would be then used to determine what the average base cost is of mining for each node in the network; this was used to demonstrate how the block reward should scale, but isnt used in the scaling algorithm. The only reason to use this formula in protocol would be for getting a figurative idea of what the price would be used if one wanted a decentralized way to ascertain a % fee.