You're the planner. Route the feeder along country roads to link both substations and every breaker into one network. A pole sets at every corner and junction — bends cost poles, long straights cost line. Build it lean and beat par.
Link both substations and every breaker into one network along the roads to advance to the next level. Aim to beat par — your total score across all levels is what counts. Tap a road cell to lay line; tap the open end of your line to pull it back.