The building


Within the following pages you will find information on our E.ON ERC main building. The building is the headquarter of the center's five institutes. At the same time, it is "the largest experiment" of the Institute for Energy Efficient Buildings and Indoor Climate. We use the building to conduct research projects towards different topics, e.g. simulation-assisted operation, active heat displacement, adaptive heat recuperation within decentralized facade ventilation units, exergetically optimized operation, sorption heat storages, sustainable integration of borehole heat exchanger field, and many more.


Energy concept of the main building

E.ON ERC HVAC equipment EBC

Constructing energy efficient buildings and ensuring the thermal comfort of its occupants is a hard task for architects and engineers. A common real-world approach for this task is to (over-)insulate the surrounding walls and windows. For office buildings, insulation just shifts the annual energy consumption from heating to cooling energy.

Intelligent heating, ventilation and air conditioning (HVAC) provides the solution for the E.ON ERC main building. The goal is to provide the energy, demanded despite insulation, as ressource-efficient as possible. We achieve this by highly integrated and complex energy generation, storage, distribution and transfer. More


Energy monitoring

Technical Infrastucture EBC

The monitoring system allows to see beneath the surface of the building, offering a better understanding of how the building and its technical equipment work and how it can be improved. Different types of data are collected by a network of sensors, for example weather data like outside air temperature and global radiation, indoor comfort data like CO2- concentration and air humidity, process data like flow and return temperatures of the concrete core activation circuits. This information can be used to identify problems in the operation of the technical equipment. Furthermore they can be used to validate the thermal simulation models for the building. Using these models new control strategies can be tested before beeing applied in the actual building. More


Architecture and construction


The plans for the E.ON Energy Research Center provide for a cubic, compact structure positioned on a plane built like terrace into the hillside, which is gently sloping towards the southeast. The plane thus fi gures as a counterpart to the existing experimental hall. The room layout is organized on four levels. The ground floor features the main entrance an foyer, the adjacent administrative facilities, as well as seminar and meeting rooms. Workshops, laboratories and technology space are found on the basement fl oor. Office space for the five institutes and a number of smaller CIP pools are located on the first and second floors. The top level consists of the technology floor and PV test field, accessible for teaching processes. More


Control strategy

building automation EBC

Optimizing building automation systems includes a large potential in terms of energy efficiency and thermal comfort. Once parameterized, building automation systems are often let well alone as handed over after construction`s completion due to the lack of skilled professionals, time or money. Two approaches, cognitive based and algorithm based, are carried out to optimize the building automation at the new E.ON ERC Main Building. The building has been operating with a custom-develped mode- and storage-based control srategy since June 2014. We provide a detailed desciption of this strategy within a report under the following link:

The process of increasing the understanding of the energy concept`s characteristics, developing new control strategies, their evaluation via simulations, and, given superiority, applying to the building is termed cognitive optimization. More