The Covington City Council on Monday approved the expenditure of an additional $117,000 on nuclear power that is still in the planning stages after construction costs for two new nuclear plants near Waynesboro were revised upwards. The Municipal Electric Authority of Georgia notified the city that it had received revised construction expenditure estimates from Georgia Power for November for the new Vogtle units. The total equity call for November to MEAG participants who have signed up for the Vogtle power is $1 million.