Abstract: An expanding electricity market sets new requirements for the system of accounting, the control and the management of the electric power system. A key platform increasing the efficiency of interaction between a consumer, grid and energy sale companies is the Intelligent Accounting Infrastructure (IAI) which provides a comprehensive information and technology solution in an open electricity market. The disadvantages slowing the implementation of IAI-systems are the complexity of adjustment and a high cost of Information Collection and Transfer System Deploy (ICTSD) as well as the high cost of individual equipment. The result of modern solution and technology analysis is a centralized information and measurement system offer for commercial/technical electricity metering (CSA) based on passive optical network technology. The developed CSA can be used during the development of new systems for commercial and technical metering of electricity which will significantly reduce the cost of deployment, simplify the commissioning process and will improve the quality and the quantity of collected data.