Solar-active sun protection elements on roofs and facades generate more energy for the "Smart Green Tower" than is required in the building. Only in connection with a battery storage, a sophisticated energy management and a smart district concept does the building become useful for the grid.
The new construction of the large residential and business complex in Geretsried in Bavaria is already a small district. Renewable energy generators and combined heat and power generation are combined with electricity and heat storage systems and operated in such a way that as much of the energy generated on site as possible is used directly.
Plusenergy buildings do not require energy from the grid in the annual balance sheet. Occasionally, though. This is why it is important to maximise own consumption and at the same time reduce the peaks in consumption and feed-in to the supply grid. Intelligent control technology makes operation grid-conscious.
For the new residential district some of the existing former barracks buildings will be preserved and converted into residential buildings and will be complemented by new buildings. Electricity, heating/cooling and electromobility sectors will be integrate into a cross-sectoral supply network.