Every clca article tagged “ecoinvent” — 11 technical pieces covering the topic from methodology, standards interpretation and practical application angles.
11 articles
A4 is the transport of the product from factory gate to site, calculated as mass × distance × a per-tkm factor. Vehicle class, utilisation, empty return and the trap of volume-limited products; the EN 15804 scenario table and a worked example.
Read moreA recovery calculation measures how much greenhouse gas and primary energy is avoided compared with the scenario in which a waste stream is not recovered. The formula, the four inputs and a worked 100-tonne PET example.
Read moreThe five phases of an EPD project from declared-unit definition to the verifier package: inventory, calculation, QA, report and lock.
Read moreThe three decisions in background data selection — right activity, right geography, right electricity mix — can move the result more than the inventory itself.
Read moreChoosing a background database is not a technical detail but a methodological decision that changes the result. Coverage, system models and why you must not mix.
Read moreModelling everything with primary data is neither possible nor necessary. The foreground-background split and allocating a data collection budget well.
Read moreecoinvent v3.12 was released in September 2025. New datasets, updated Turkish grid mix, the three system-model variants and automatic electricity calculation in clca.
Read moreLCI is the phase where every flow in and out of the system is counted. An LCA’s quality is decided here — and so is most of its effort.
Read moreComparing feature lists misleads. What actually decides it is database access, verifiability and fit with your workflow.
Read moreThe multiplier in every carbon calculation. The source you pick moves the result noticeably, and the wrong factor is the most common calculation error.
Read moreThe whole flow from functional unit to result table. What data to collect, where to get it, and how quickly a first calculation can be finished.
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