According to Article 91 (1) (c) of the Electricity Market Regulation Laws
consumers are entitled to change their electricity supplier in a simple and quick way, without any extra charge.
The operator of the network in the consumer area must make the change within three weeks as it meets the terms and conditions of the initial contract (eg notice period, agreed minimum contract duration). Electricity suppliers are not allowed to impose disproportionate obligations to prevent consumers from switching suppliers. No later than six weeks after the change, the consumer will receive the final clearing account from his previous supplier.