About Us

Years of experience. National and international. Advising companies of all industries and conducting workshops. Increasing resource efficiency. Implementation of continuous improvement processes to improve environmental performance.

Our approach

Our approach to optimizing processes to reduce the use of resources is “from rough to detailed” or “top down”. This method, through the systematic, phenomenological representation of system elements and functional relationships between the material components, significantly improves the understanding of the influencing variables of the individual processes and provides relevant information with regard to the interactions between the process steps and the identification of further optimization possibilities. With the “top down” approach, the field of view is at first is broader and then detailed step by step. This avoids starting with detailed surveys when investigating the problem area before completely structuring the problem area.

When designing solutions, general goals and a general solution framework are defined first. Then the level of detail and degree of specification is gradually deepened. Consistent concepts at higher levels ensure that the interactions are considered in all approaches.

DI (FH) Christina Krenn


  • Energy and environmental technician
  • 12 years of experience in energy optimization and management systems
  • System engineering
  • Project management of research and development projects
  • Energy optimization of processes and buildings
  • Waste management concept
  • Preparation of manuals and training documents
  • Energy auditor

Dr. Johannes Fresner


  • Process engineer
  • 25 years of experience in the optimization ofprocesses and products
  • Waste prevention, energy and water demand optimization
  • Environmental and energy management system
  • Consulting and training in 40 countries
  • Consulting of about 400 companies
  • TRIZ
  • Value analyst
  • Ecodesign
  • Energy auditor
  • Life Cycle Analysis
  • Carbon Footprint
  • Ecolabel for different industries
  • Implementation of ECOPROFIT

Systemic process optimization

Management systems

Your profit:


STENUM Environmental Consultancy and Research supports companies in increasing the resource efficiency and the continuous improvement so that they contribute to sustainable development.

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