Reliant Energy Retail Services LLC agreed to pay an administrative penalty to resolve violations concerning billing issuance, according to an Oct. 12 filing by the Texas Public Utility Commission staff. Retail electric providers are required to issue bills within 30 days of receiving usage data and related invoices from a transmission and distribution utility. The commission staff found that from August 2017 to May, 1,714 customers enrolled in the program for customer-sited generation, such as solar panels, experienced billing delays because of failures in the company’s billing database. Reliant also infringed rules by providing bills electronically instead of written mailings to 47,930 customers from January 1, 2017 to June 5, without first obtaining an agreement from customers to do so.