This document discusses voltage regulation options for electrical utilities. It compares using single-phase voltage regulators in conjunction with a transformer without a load tap changer (LTC) versus using a single-phase transformer with an integrated LTC. The single-phase regulator option allows maintenance to be done on individual phases without taking the entire system offline. It also has lower lifetime costs due to cheaper maintenance and repairs. Overall, the single-phase regulator option provides more flexibility and cost savings compared to the integrated LTC transformer.