Energy audit: the essentials
The energy audit measures your sites' consumption, identifies the areas to address and results in a costed, prioritised action plan. We also check with you whether the audit obligation applies to your company.
Who is it for, and for what uses?
It suits SMEs, mid-sized companies and multi-site businesses that want to know their consumption areas, prepare a solar project or an electricity contract, or meet their obligations. It is useful to finance directors and technical managers.
What it changes for you
You get a precise picture of each site's usage, based on readings, and an action plan ranked by cost and expected effect. We support you through implementation.
Is your company subject to the mandatory audit?
Yes if its average annual final energy consumption, calculated over the last three years, exceeds 2.75 GWh. This consumption criterion replaced the former size criterion (headcount, turnover, balance sheet) with the law of 30 April 2025 (DDADUE law). Above 23.6 GWh, a certified energy management system (such as ISO 50001) becomes mandatory.
The audit is renewed every four years and declared on the ADEME platform. The first audit was due by October 2026: if you have not done it yet, it is better to start without delay.
How does the audit unfold?
The audit is carried out by a qualified auditor, following the NF EN 16247 standard. It starts from your actual data and ends with a costed action plan that you are free to apply or not.
| Step | Content |
|---|---|
| Scoping | Sites, uses and objectives included in the scope |
| Data collection | Bills, meter readings, load curves and operating data |
| Site visit | On-site readings and measurements |
| Analysis | Consumption by use and identification of savings potential |
| Action plan | Costed actions: investment, expected gain, payback |
How does it differ from the tertiary decree?
The energy audit is an obligation tied to the company's consumption. The tertiary decree applies to tertiary buildings over 1,000 m²: it sets consumption-reduction targets and requires a declaration on the OPERAT platform.
The same site can be concerned by both, and the audit data feed the tertiary-decree action plan.
Our solution
The audit takes place in three stages:
| Criterion | With Eneffic |
|---|---|
| On-site readings | Readings and analysis of consumption by use |
| Action plan | Costed, prioritised and phased actions |
| Follow-up | Support in implementing the chosen actions |
Thomas's take, our expert
A useful audit ends in a decision, not a hundred-page report. For a multi-site company, I rank actions site by site and note which ones cost nothing.
Thomas, Energy expert
Our support
A single contact supports you at every step, from the initial analysis to long-term follow-up.
YOUR PROJECT STEP BY STEP
Data collection
We gather bills, plans and load curves.
On-site readings
We record consumption by use.
Costed action plan
We rank actions by cost and effect.
Implementation follow-up
We support you on the chosen actions.
Key takeaways
Readings, not estimates
The diagnosis rests on on-site readings.
A prioritised plan
Actions ranked by cost and expected effect.
Follow-up through to action
The audit does not stop at the report.
