Texas saw a $50B future in clean energy. Then the political winds shifted.

Texas saw a $50B future in clean energy. Then the political winds shifted.

On an unseasonably warm January day, Duff Hallman’s goats and sheep wandered unhurried through the rocky hills of his ranch 30 miles south of San Angelo, Texas, unbothered by the long shadows that swept over the ground. The shadows fell from wind turbines towering 250 feet above, their blades spinning like clock hands over land that has been in Hallman’s family for four generations. From a shady spot in his backyard, Hallman can almost nod off w…