BLOOM Workshop on Energy Efficiency

Solutions: Materials. Technologies. Procedures.

Steinbeis House | Stuttgart | 19.04.2023

Materials. Technologies. Procedures.

Session 2 of the workshop was related to materials, technologies and procedures. Representatives of private enterprises were invited to present best practices in energy efficiency. In Germany, Fichtner Group is recognized as one of the best management consultants in the energy industry. The internationally experienced company knows the potential of cooperation with Romania. No less than 3 experts of Fichtner took part in the workshop. Ahmed Muhammed presented technical challenges in implementing energy efficiency. Main difficulties are created by the lack of information and know-how. the more it is appreciated that an exchange of experiences takes place. Mr. Muhammed did not limit himself to explaining the problems. As a consultant, he also addressed approaches to solutions on heating and cooling systems, sun shading and the application of photovoltaic systems. His colleague Dr. Dirk Köwener followed up on this by presenting the success factors for implementing energy efficiency. Dr Köwener used concrete examples to show the economic benefits of investing in energy efficiency. The effectiveness is even increased when a form of cooperation developed by the Fraunhofer Institute is applied. Using the proven method, 12-15 partners form a local network to exchange experiences on energy efficiency. The return on investment is significantly higher than if an individual institution plans the measures. In principle, this method can easily be introduced in Romania.

Erwin Kober, managing director of RBS wave GmbH, introduced the processes of communal heat planning. With the software used by RBS wave, buildings and consumption data as well as the existing infrastructure are recorded in every detail and displayed in images. After that, RBS wave describes scenarios for the year 2040 on the basis of a needs analysis and an analysis of the potential, which are ideally developed together with stakeholders. The procedure aims to show which measures are to be carried out by 2040 in order to achieve an efficient and climate-neutral heat supply system. The work results in a communal catalogue of measures summarized in a heat transition strategy. Municipalities with more than 20,000 inhabitants in Baden-Wuerttemberg are obliged to elaborate a communal heat plan.

Heating, ventilation and air conditioning are responsible for 30-50 % of the energy consumption of non-residential buildings. MEZ-Technik GmbH has taken up this issue. Jörg Mez, managing director, explained to the participants how to increase energy efficiency in non-residential buildings by sealing leaks in ventilation systems. The unique technology “Aeroseal” was developed in USA 1994. MEZ holds the license for Europa and has completed more than 800 projects in new buildings and retrofits. A licensee in Romania does not exist yet. Since airtightness is one of the main components of the Passive House Concept, a functioning and cost-effective solution must be offered. Aeroseal can be such a solution. No construction or big labour efforts are necessary. The process of sealing can be executed by 1-2 persons.

Stefan Specht, representative of holzius GmbH, came to Steinbeis for an introduction to a tour planned for the next day. He aroused the curiosity of the participants by explaining how a five-floor building could be constructed entirely of wood. The patented process fulfils all standards – and the wood is even particularly suitable for fire protection.

Horia Petran, expert from project partner URBAN-INCERC took the chance to introduce the great initiative “nZEB Roadshow”. 25 awareness rising events will take place. One of them in Timisoara (May 10th -13th) which is this year European’ Cultural Capital.