Metric · draft
A measurable indicator (students often call it a KPI) used as evidence for a design decision.
| Category | Carbon |
| Unit | tCO2e/year (annualised) |
| How it is calculated | (Embodied carbon + operational carbon over the reference period) ÷ number of years. |
| Origin | adapted |
| Standard | EN 15978 |
| Status | draft |
Also known as: Annualised life-cycle carbon
What it measures
Puts embodied and operational carbon on one scale, so that design options can be compared fairly.
Calculation
(Embodied carbon + operational carbon over the reference period) ÷ number of years.
Connections
- Used in case studies: Vladi Kostecki
- Tools that can calculate it: CO2mpare, One Click LCA
- Informs decisions on: Embodied carbon and adaptive reuse of logistics buildings, Operational energy and on-site renewables
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