A license to manage the electricity system in its production and transmission sectors, and including the continuous balance between electricity supply and demand, ensuring the survivability of the electricity production and transmission systems, the management of the transfer of energy from the power stations via the electricity grids to the sub-stations at the required level of reliability and quality, scheduling the implementation of maintenance work on the production units and on the transmission system, management of electricity trading under optimal conditions of competition and equality including the implementation of agreements for the purchase of installed capacity and energy from electricity producers and the planning of the development of the transmission system and transformation