Avangrid, the U.S. unit of Spain's Iberdrola, has agreed to sell its Kitty Hawk North offshore wind lease area to utility firm Dominion Energy for about $160 million, the companies said on Monday.Located in offshore North Carolina, Kitty Hawk Wind North will be renamed Coastal Virginia Offshore Wind (CVOW)-South and would have a capacity of 800 megawatts (MW), enough to serve 200