Texas is in the midst of a wind-power boom, and at the heart of it lies a conundrum: While plenty of ranchers are eager to host wind turbines, few want the unsightly high-voltage transmission lines needed to carry the power to distant cities running through their property.

The lack of transmission lines  and the relatively low price of natural gas  has thwarted the ambitions of wind-power advocates to expand the use of this alternative energy source in Texas. The oilman T. Boone Pickens, for example, bet heavily on wind a couple of years ago, ordering hundreds of turbines and announcing plans to build the world’s largest wind farm in the Panhandle at a cost of up to $12 billion. He later scaled back, canceling some of the turbine orders, giving up his land lease and saying he was looking elsewhere to build.

To encourage others, the state is moving forward on a contentious project to erect $5 billion worth of transmission wires to connect the turbines to the cities that need power. On Thursday, state regulators met in Austin and approved the route of a controversial line that will run about 140 miles through the Hill Country, one of the state’s most scenic regions.

Construction of the line  a project of the Lower Colorado River Authority that will run from Schleicher County to a substation near Comfort  should start next year. Last year, vigorous opposition, by landowners, wealthy newcomers and old-time families, succeeded in derailing plans for another line that the state had wanted to build through the area. Instead, the existing electric infrastructure will be upgraded to carry a greater load. The Public Utility Commission, which is overseeing the process, has also canceled plans for an additional segment of the Hill Country line discussed at the meeting Thursday.