Reconstruct your idea of sustainability | Peter Rupp | TEDxHSGSalon
The speaker argues that the construction industry's unsustainability—marked by high resource consumption and stagnant productivity—can be addressed by implementing four crucial steps: defining KPIs, standardizing measurement methods, setting SMART targets, and ensuring transparency, all accelerated by digital tools like the Digital Product Passport. These digital methods allow for life-cycle analysis of both individual products and entire buildings, leading to measurable environmental improvements.
## Speakers & Context
- Speaker is giving a presentation at his alma mater after exactly 30 years.
- Talk covers two passions: digitalization and sustainability within the construction industry.
- The speaker has worked in "different functions in [the] construction industry" over the last 30 years.
## Theses & Positions
- **Key Challenge 1 (Resource Use):** The construction industry consumes around 50% of the materials explored day by day from the planet.
- **Key Challenge 2 (Carbon Footprint):** The construction industry contributes around 40% to the human-made carbon footprint on this planet, according to the International Energy Agency.
- **Key Challenge 3 (Productivity):** The construction industry has seen hardly any productivity gain over the last decades or even centuries; the productivity curve is "basically flat."
- **Opportunity:** Addressing these challenges simultaneously can improve both productivity and sustainability.
- **Problem with current sustainability assessment:** Objectively assessing the sustainability performance of components (e.g., two chairs) or products is currently "not possible" due to the inflation of green labels and mistrust.
- **Solution Goal:** Build trust by establishing a rigorous, measurable system for true sustainability performance.
## Concepts & Definitions
- **Product Carbon Footprint:** One key performance indicator (KPI) used to measure the emissions cost over a product's complete life cycle.
- **Bill of Substance:** The definition detailing what type of materials are in a product, its weight, and its source.
- **SMART Targets:** Targets that must be Specific, Measurable, Ambitious, Relevant, and Time-bound.
- **Digital Product Passport:** A digital data set associated with a product, consisting of all technical data, including performance, weight, and duration.
- **Building Information Modeling (BIM):** Nothing else than the "digital twin of a physical building."
## Mechanisms & Processes
- **Sustainability Assessment (The Four Steps):**
1. **Define KPIs:** Properly define what sustainability means for the context (e.g., Product Carbon Footprint, Recycled Content, Bill of Substance).
2. **Define a Method:** Establish an internationally accepted method to measure the KPIs, such as calculating the Product Carbon Footprint over the entire life cycle.
3. **Define Targets:** Set SMART targets (e.g., "What's the carbon footprint today? What's the goal for the next let's say five years?").
4. **Make Transparent:** Being transparent about the base measurements and progress towards the target.
- **Digitalization's Role:** Applying the four steps digitally:
- **Product Level:** Scanning a QR code pulls the Digital Product Passport (technical data, usage instructions, sustainability data).
- **Building Level:** Integrating the Digital Product Passport into the BIM creates a "continuous overview about that sustainability dashboard... over the complete life cycle."
- **Benefit:** Enables comparison of design alternatives (e.g., concrete vs. wood) at the design phase to immediately see the carbon footprint.
## Timeline & Sequence
- Speaker has observed industry challenges across the last 30 years.
- Initial observation: The industry faces simultaneous deficits in productivity gains and unsustainable resource consumption.
- The proposed intervention is a sequential, systematic process: Define $\rightarrow$ Method $\rightarrow$ Target $\rightarrow$ Transparent.
## Named Entities
- International Energy Agency (IEE) — Source cited for the 40% carbon footprint statistic.
## Numbers & Data
- Construction industry resource consumption: **50%** of materials explored day by day.
- Construction industry carbon footprint contribution: **40%** of human-made carbon footprint.
- Data points held by the speaker's company: **more than 300 million** non-financial data points.
## Examples & Cases
- **Sustainability Confusion:** Difficulty in objectively comparing the sustainability of two chairs (red vs. blue) or two tools (orange vs. blue).
- **The Digital Passport Process:** Scanning a QR code on a power tool yields a passport containing technical data, usage instructions (e.g., 400 pages in 20 languages), and sustainability data (carbon footprint, recycled content).
- **The Building Model:** Applying the system to a building composed of thousands of repeating products (chairs, ceiling), allowing cradle-to-grave oversight.
- **Comparative Analysis:** Ability to compare different design alternatives (e.g., replacing concrete with wood) during the early design phase to instantly see the environmental impact.
## Tools, Tech & Products
- **Digital Product Passport:** Digital container for all technical data related to a product.
- **QR code:** Used to access the Digital Product Passport.
- **Building Information Modeling (BIM):** The digital twin of a physical building, used to aggregate life-cycle data.
- **Power Tool:** Example product used to illustrate the Digital Product Passport.
## References Cited
- International Energy Agency (IEE) — Cited for the 40% carbon footprint statistic.
## Trade-offs & Alternatives
- **Physical Booklet vs. Digital Passport:** Physical booklets are expensive to print (thousands of tons annually in the speaker's company) and are replaced by digital data.
- **On-site Assessment vs. Digital Tracking:** Physical site assessments are prone to localized failure; digital tracking allows for continuous monitoring (e.g., energy usage per square meter).
- **Material Comparison:** Ability to compare materials (concrete vs. wood) at design stage vs. building it first and assessing later.
## Counterarguments & Caveats
- The current state is characterized by industry mistrust due to "inflation of green labels."
- Manually tracking sustainability is inefficient (e.g., printing thousands of tons of instruction booklets).
## Methodology
- The speaker advocates for a mandatory, systematic process: defining KPIs, standardizing the calculation method, setting SMART targets, and forcing data transparency.
- The technical implementation relies on linking product-level data (Digital Product Passport) to the macro-level building model (BIM).
## Conclusions & Recommendations
- Digitalization must reconstruct the construction industry to achieve a tremendous positive impact on the planet.
- The industry must adopt the standardized 4-step framework to measure and communicate true sustainability.
## Implications & Consequences
- **Environmental Impact:** Significant reduction in physical waste (e.g., eliminating printed manuals) and a better understanding of embodied carbon.
- **Operational Oversight:** Allows for monitoring of the building's performance over decades, enabling immediate adjustments for energy usage or material lifespan.
- **End-of-Life Planning:** Ensures knowledge of all materials present, facilitating proper recycling loops for both product and material levels.
## Verbatim Moments
- *"it consumes around 50 percent five zero of the materials which are explored day by day from this planet."*
- *"the productivity curve in construction industry is basically flat"*
- *"digital means will help and can help to overcome these challenges"*
- *"the product carbon footprint is one key performance indicator"*
- *"step number two and that's actually the most most important one is to define a method an internationally accepted method"*
- *"smart means specific measurable it should be ambitious relevant and time-bounded"*
- *"what was the base where are we on the progress towards the target so that's step number four"*
- *"the so-called digital product passport is popping up"*
- *"if we integrate now this digital passport into this big model we have over the complete life cycle of the building"*
- *"The benefit is even bigger I can compare during the design phase at the very very early stage different design alternatives for the building replace concrete with wood or other material and immediately see before the building is constructed the carbon footprint the recycle content the recyclability of a particular asset or building"*
- *"digitalization truly reconstruct construction industry and by that have a tremendous impact on our planet"*