Decarbonising industry
Acoustic, energy and environmental engineering for ICPE sites

Heavy industry, steel, refining, petrochemicals, energy, faces converging obligations: ICPE noise limits at the property boundary, the DDADUE energy audit for large consumers, carbon measurement and a credible decarbonisation trajectory. NORMAXIS supports these sites with acoustic engineering, regulatory energy audits and carbon LCA, feeding directly into CSRD ESRS E1 reporting.

Key issues

Three regulatory fronts for an industrial site.

ICPE acoustics

Admissible emergence (+5 dB(A) day / +3 dB(A) night) and boundary noise limits under the 23 January 1997 order, with a full propagation study for high installed power.

DDADUE energy audit

Mandatory audit above 2.75 GWh/year of final energy, every four years (NF EN 16247), covering at least 80% of consumption, or ISO 50001 as an alternative.

Carbon LCA & decarbonisation

Carbon measurement and a decarbonisation trajectory that feed the CSRD ESRS E1 transition plan and answer investor and lender scrutiny.

Context

Decarbonising a site is an evidence problem before it is a technical one.

Industrial decarbonisation projects in France are rarely blocked by the absence of technical options. They are blocked by the absence of a defensible baseline: without measured consumption at process level, no reduction can be demonstrated, no subsidy application can be substantiated, and no group-level disclosure can be traced to the site.

The DDADUE energy audit exists precisely to produce that baseline, and treating it as a compliance formality wastes it. Built as a roadmap, measured baseline, ranked actions, payback the finance team can act on, it becomes the document the investment case rests on.

Regulation

Three frameworks converge on the same site.

ESRS E1 requires group-level climate disclosure that has to be traceable to site measurement. Classified-installation rules govern what the site may emit, including noise at the boundary. And certified energy management under ISO 50001 exempts from the audit obligation while embedding the measurement process.

Where the site holds ecological value or is being extended, ecological expertise follows the same four-season calendar as any other project, and it is usually the constraint that sets the schedule.

Going further

Related pages.

Industrial decarbonisation draws on these pages.

Scope an industrial assignment

ICPE acoustics, regulatory energy audit and carbon LCA, the evidence base for compliance and for CSRD climate reporting.

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