NextEra Energy Resources, LLC, through its subsidiaries, owns, develops, constructs, manages, and operates electric generation facilities in wholesale energy markets in the United States, Canada, and Spain. It generates electric power from wind, solar, natural gas, oil, and nuclear sources. As of December 31, 2017, the company’s generating capacity included 18,180 MW megawatts across 32 states in the United States, 780 megawatts in 4 Canadian provinces, and 99.8 megawatts in Spain. It also owned and operated 205 substations and 1,190 circuit miles of transmission lines.