(1) What percentage of electricity tariffs have been levied for the maintenance of electricity infrastructure by the National Energy Regulator of South Africa (Nersa) for all municipalities in the Eastern Cape; (2) whether Nersa supervises expenditure on infrastructure maintenance; if not, who is responsible for the oversight; if so, what are the relevant details; (3) whether municipalities have submitted any type of reports on maintenance of electricity infrastructure; if not, why not; if so, what are the relevant details?