E-Home Energieprojekt 2020

E.ON Avacon AG launched a three-year pilot project in 2011 to examine the future needs of low voltage grids. The project will be scientifically monitored by the Energie-Forschungszentrum Niedersachsen (EFZN). The aim of the supporting research is to investigate the impact of new components on the low voltage grids. One focus is on increasing the penetration of photovoltaic systems through the use of on-load tap-changing transformers. In addition thereto, a field test with a plurality of measurement campaigns is carried out. Previously, each participating household was equipped with electric vehicles, photovoltaic systems, air conditioner and smart meters. Also the measured values are recorded centrally and are available for evaluation. When using a few reference grids for representation of the entire low-voltage grid, high inaccuracies in the transmittance of the results on the entire grid can be expected. The creation of synthetic grid structures may be an alternative to the use of representative grids. The advancing change of the grid demand from a pure supply task to a mix of power demand and infeed has to be regarded in this context. This development demands the definition of new load approaches, which can be used in future grid calculations. In addition to the technical issues, economic, legal and sociologic themes are examined. (4 pages)