Seems that commercial power costs less than residential. Sometimes the difference is negligible but other times it's significant. I know residential lines cost

Seems that commercial power costs less than residential. Sometimes the difference is negligible but other times it's significant. I know residential lines cost much more to maintain because of the distances but that doesn't apply to residential apartments buildings in cities and I believe there's a seperate charge for that. Why? https://www.eia.gov/electricity/monthly/epm_table_grapher.php?t=epmt_5_6_a https://www.eia.gov/electricity/monthly/epm_table_grapher.ph...