Embodied Carbon & ESG for Construction (2026)
SkillDev toolsEstimate embodied carbon and produce ESG/climate reporting for construction: LCA per work item, material-based carbon factors, EU taxonomy and CSRD alignment. Use when a project needs carbon estimates or sustainability reporting.
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Connect ahel once, and every AI you use reads what you have installed.
Then ask your AI: use the Embodied Carbon & ESG for Construction (2026) skill
What this skill tells your AI
The instructions your AI receives, as published by datadrivenconstruction/ddc_skills_for_ai_agents_in_construction in 5_DDC_Innovative/embodied-carbon-esg/SKILL.md and read by ahel’s review.
Why it matters now
From 2026 the EU CSRD (Corporate Sustainability Reporting Directive) and EU Taxonomy force contractors and developers to report embodied carbon (A1–A5 life-cycle modules), not just operational energy. Estimators need carbon numbers next to price numbers at the BOQ line level.
Method
Carbon = quantity × carbon factor, applied per material resource line — exactly parallel to quantity × unit price = cost.
work item → components[] → material lines → quantity × EF (kg CO₂e / unit) → line carbon
BOQ roll-up: Σ line carbon = project embodied carbon (A1–A3) + transport/waste (A4–A5)
Data sources for factors
| Source | Coverage | License |
|---|---|---|
| ÖKOBAUDAT (DE) | building materials | open |
| INIES (FR) FDES | products | open |
| ICE Database (UK) | embodied carbon | free registration |
| EPD libraries (ECO Platform) | manufacturer EPDs | varies |
The CWICR bases already carry per-resource quantity and unit — attach an EF (kg CO₂e/unit) column for the materials and the roll-up is automatic.
What to compute per project
- A1–A3 embodied carbon per BOQ section and per trade (from material lines).
- A4–A5 transport + site waste assumptions (distance bands, waste rates per material).
- kg CO₂e / m² and / m³ intensity benchmarks for early design.
- Hotspot report: top 10 carbon lines (usually concrete, steel, aluminium, insulation).
EU Taxonomy / CSRD alignment
- Map each work item to the taxonomy activity (construction of new buildings 7.1, renovation 7.2, …).
- Report DNSH (Do No Significant Harm) screening: circularity, waste, water for the top materials.
- Keep the evidence trail: factor source + version per line (auditors ask).
Honest limits
- Carbon factors are regional and versioned — never mix databases without noting it.
- BIM takeoff gives geometry; carbon needs material takeoff (from CWICR
resource_name+resource_quantity). - Early-phase estimates are ±30–50%; label them as such.
Resources
Signals
- GitHub stars
- 308
- Forks
- 79
- Last commit
- Aug 2026
Advanced
- Catalog kind
- skill
- Gateway key
embodied-carbon-esg- Source
- github.com/datadrivenconstruction/ddc_skills_for_ai_agents_in_construction