SWEPCO had not shown the out-of-state wind facilities would result in lower costs for Texas customers, according to regulators.
The COVID-19 Electricity Relief Program applies only to residential customers in areas with retail electric deregulation.
CenterPoint serves as the primary electric transmission and distribution utility and natural gas utility for Houston, its surrounding areas and for a large swath of the Texas Gulf Coast.
The 100-year-old Cox Act marked the beginning of city, state cooperation in utility regulation.
A state’s primary power grid operator faces a lawsuit that could determine whether it faces future legal liability.
CenterPoint’s sale of a big natural gas retail asset closed earlier this month for substantially less than initially anticipated.