Energy-Management for Buildings

Hospitals rank among those branches characterized by very high energy demand but also reveal a high potential for energy savings in the areas of lightning, heating, air conditioning and water consumption. The lion’s share of energy savings can be accomplished by the application of energy saving lamps, filters, thermostats and clock timers within service units.

The award for rational and eco-friendly use of natural gas was granted to the planner of a combined heat and power (CHP) plant supplying the University Hospital of Heidelberg, the German Cancer Research Institute and the new built Park for Technology Transfer III. The project aimed at reducing energy costs and emissions by modernising a heat plant by means of a contracting model introduced by the Harpen Energie Contracting, Dortmund.

The project of the „Sto AG“ aims at the development of building materials with increased thermal mass. Such latent heat storage devices reduce the demand for thermal heat, reduce cooling loads and increase the comfort referring to temperature of buildings. The project receives federal funding from PTJ – the Project Management Organization Jülich.

The new administration building of the Barnim district ("Paul-Wunderlich-House") in the old part of Eberswalde had already used less primary energy than proposed (max. 100 kWh/m²a) in the first year of operation. A highly energy-efficient floor lamp was developed further as part of the light planning measures.

The building automation server developed in the project enables the measurement and analysis of power consumption in a building, in terms of its utilisation, by controlling it through a device control and by visualising it. This can result in a significant reduction of energy consumption in buildings. Expand…

In case of the patented HF inliner system the circulation line is largely integrated into the supply pipe in order to decrease the calorific losses during the warm water circulation. The water, which has cooled down on its way to the taps by calorific losses to the environment of the pipeline, is heated up on its way back to the hot water tank. The calorific losses of the return pipe are completely avoided and - compared to a conventional circulation system - reduced by up to 50 %.

Optimising all components in the system substantially reduced both the energy needs and operating costs of a refurbished optician’s. Expand…

The new office building with its flexible spatial design is both economic and energy-efficient to run (primary energy value of 89 kWh/m²a). The air conditioning is based on geothermal heating and cooling in conjunction with a heat pump.

There are many activities of the Länder, local authorities or energy agencies which consider particularly the energy saving possibilities at schools. Investigations showed that the energy consumption can be lowered by more than 75 %, the largest saving effect being obtained by the insulation of the external walls. The fundamental procedure is described at the example of a school in Stuttgart.