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About the Role

This Master's thesis focuses on developing and testing a position-based bottom-up model for calculating the investment costs of energetic envelope renovations for typical residential and non-residential buildings. The research aims to provide a more transparent and comprehensible estimation of renovation costs for building owners, municipalities, energy suppliers, and other stakeholders, addressing the limitations of generic cost functions by incorporating building-specific cost drivers.

Responsibilities

Develop and test a position-based bottom-up model for calculating investment costs of energetic envelope renovations.
Characterize typical buildings and create basic geometric models using CAD or BIM software.
Determine cost-relevant quantities such as areas, lengths, and item counts for renovation measures.
Formulate renovation variants and measure packages by technically describing complete options.
Perform position-based cost calculations by linking quantities with construction services and unit prices.
Differentiate cost components, including full costs, repair/ancillary costs, and energy-related additional costs.
Conduct systematic comparisons and sensitivity analyses against generic cost functions and published cost ranges.
Validate the methodology with a pilot building before applying it to further typical buildings.

Requirements

Master's thesis topic.
Focus on energetic envelope renovations for typical residential and non-residential buildings.
Consideration of measures for facades, windows, roofs, and basement ceilings.
Inclusion of repair variants, standard energetic variants, and ambitious energetic variants.
Analysis of at least one historic or heritage-listed building type.
Comparison with generic cost functions from the Institute for Housing and the Environment (IWU) and published cost ranges.
Use of CAD or BIM software (e.g., Archicad) for building modeling.
Experience with position-based cost planning software (e.g., BKI Cost Planner) is beneficial.
Ability to structure and evaluate technical regulations, building typologies, and specialist sources.
Documentation of missing or poorly fitting cost approaches.

Skills

Building Information Modeling (BIM)
CAD software
Cost estimation
Data analysis
Technical documentation
Energy efficiency in buildings
Building renovation

Location

Karlsruhe

Work Type

Master's Thesis

Experience Level

Master's student

Education Level

Master's degree

About the Company

Fraunhofer ISI in Karlsruhe is a globally recognized center of excellence in innovation research.
The institute works on key issues of innovation dynamics and system transformation through its nine departments.
It offers unique opportunities for applying and developing new approaches in innovation research.
Fraunhofer ISI has close ties to numerous universities and research institutions domestically and internationally.
The institute holds a leading position in theory- and evidence-based consulting, providing unique access to national and international stakeholders in politics and business.
The Department of Energy Technologies and Energy Systems investigates innovative energy technologies and their contribution to a sustainable energy system.
This department develops and evaluates strategies for faster research, development, and practical application of energy-efficient technologies.
The team uses extensive modeling to analyze technological developments and their impact on the economy, employment, and the environment.