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Real-Time LCA implements an HMS calculation type for Iceland, named after Húsnæðis- og mannvirkjastofnun — the Icelandic Housing and Construction Authority. The calculation type covers the construction and use stages plus end-of-life and module D.

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HMS

  • Reference study period: 50 years.
  • Indicator: Global Warming Potential (GWP), kg COâ‚‚-eq per m² GFA per year.
  • Threshold: none defined in Real-Time LCA at this time.

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Custom and Level(s)

Real-Time LCA additionally exposes Custom and Level(s) (full EN 15978 module set, see Level(s)) for Icelandic projects.

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Reference Service Life

The HMS calculation uses national lifetime references for module B4 replacement, with project-level overrides available — see Assumptions and defaults.

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Limitations

  • No regulatory limit value is currently configured for the HMS calculation type. The result is reported numerically.
  • Iceland’s energy mix is dominated by geothermal and hydroelectric generation, which materially affects module B6 (operational energy) compared with continental Europe. Default carbon intensities for Icelandic electricity should be verified for the project’s energy carrier before submission.
  • Output-format details for HMS submission are tracked separately and will be added to this page once the export pipeline is finalised.