Your monthly invoices are prepared on the basis of data that your network operator forwards to the national Elering data hub. If the customer has not forwarded their electricity meter’s readings (in case of a standard meter) or the customer's remote reading meter malfunctions and the network operator does not receive the actual reading from the customer's meter, the customer's consumption is forecasted on the basis of annual consumption and standard consumption schedule. The meter transmits the stored data when the connection is re-established and is adjusted accordingly on the invoices (correction).