Method and arrangement for determining an electrical characteristics at a regulation point

摘要

A method for determining electrical characteristics at a point of regulation (123) to which plural energy providing/production units (101) are connected via a common node (121) is provided. The electrical characteristics at an output terminal (103) of each of the plural energy providing/production units are measured in order to obtain plural measured electrical characteristics (129). Circuit configuration information about a configuration of a circuitry connected between the plural energy providing/production units and the point of regulation is obtained (115, 117). Electrical characteristics at the point of regulation are calculated based on the plural measured electrical characteristics and the circuit configuration information.