Abstract: Disclosed is battery system including a plurality of rechargeable cells connectable in series along a power line, each cell being individually packaged with: —a corresponding controller; —a corresponding memory; and —a corresponding communications interface. Each cell is arranged to be bypassable under the control of the corresponding controller, the corresponding controller being adapted to: —bypass the corresponding cell by a corresponding bypass circuit; —carry out diagnostics on the corresponding cell when bypassed, under the power of the corresponding cell; —communicate with at least one other controller by the corresponding communications interface, and —store information relating to the diagnostics in the corresponding memory.

Abstract: A method for dispatching an operation of a distribution feeder of electrical power into a grid with heterogeneous prosumers, the method comprising the steps of establishing a dispatch plan on a computer by using forecast data of an aggregated consumption and local distributed generation at the grid for a predetermined period, and operating the distribution feeder according to the established dispatch plan during the predetermined period.