Islanded house operation using a micro CHP

The µCHP is expected as the successor of the conventional high-efficiency boiler producing next to heat also electricity with a comparable overall efficiency. A µCHP appliance saves money and reduces greenhouse gas emission. An additional functionality of the µCHP is using the appliance as a backupgenerator in case of a power outage. The µCHPcould supply the essential loads, the heating and reduce the discomfort up to a certain level. This requires modifications on the µCHP appliance itself as well as on the domestic electricity infrastructure. Furthermore some extra hardware and a control algorithm for load balancing are necessary. Our load balancing algorithm is supposed to start and stop the µCHP and switch off loads if necessary. The first simulation results show that most of the electricity usage is under the maximum generation line, but to reduce the discomfort an electricity buffer is required.

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