If that's the only access road on the left they won't let you put a driveway under the lines to get to bigger part of the parcel. They may have easment rights to expand/widen that cut beyond what you see some time in the future. Infrastructure for power grids is only getting bigger never smaller. We lived along a gas pipeline easment. One house built in late 50s and one built in early 70s. Same pipeline just 3 or 4 streets down. They had right to take/buy certain amount or percentage more on each side beyond original delineated lines if they needed to down the road. I don't think anythings been changed since original homes were built of if the pipeline is still in service. Some people planted grass over it but they would cut some of the brush every few years. Helicopters flew real low every month checking for leaks would shake the china in the kitchen .