Key cost drivers include panel amperage, indoor vs outdoor location, wiring length, and whether a full panel upgrade or rerouting is needed. The main drivers are panel capacity, existing wiring condition, permit requirements, and whether anyUpgrade to. This document shows the methods and requirements for installing PG&E-owned underground service conductors in commercial buildings and three-phase multi-residential buildings. For agricultural underground service refer to See Document 058817 for terminating underground electric service 0−600 V in. How do you run wire from meter to breaker box? If you need to run a wire from the meter to the breaker box, start by turning off the power using the main switch to avoid injury risks from live wires. Then, locate the ground wire from your meter and connect it to the ground bar of the breaker box. The MISO transmission planning process focuses on making the benefits of an economically efficient electricity market available to customers by identifying transmission projects that provide access to electricity at the lowest total electric system cost.