Climate, Jean-Luc Mélenchon
Energy renovations per year: At least 700,000 homes insulated a year
Direction of change: increase, compared with current law.
The lever. Number of homes renovated each year to reduce their energy consumption, according to the programme's target. Direction rule: ↑ more subsidised renovations.
« Refaire l’isolation d’au moins 700 000 logements par an »1Translation by the editorsRedo the insulation of at least 700,000 homes a year
Encoding
| Parameter | Current law | Programme | Effective date or horizon |
|---|---|---|---|
| Major renovations assisted per year | 91,374 homes | 700,000 homes* (outside the range measured by the source: linear extrapolation) (assumption by the editors, see the costing) | Direct public aid in a full year |
Costing
Announced by the candidate
not announced
The programme does not cost this measure.
Published costings
none
No external costing of this position recorded to date.
Our calculation
−€7.3bn* (outside the range measured by the source: linear extrapolation)
per year for the public accounts, new spending, range −€22bn to −€7.3bn.
* Outside the range measured by the source: linear extrapolation (measured range: 91,374 homes only).
The calculation
- Major renovations assisted per year: (700,000 − 91,374) ÷ 100,000 = 6.09 times “+100,000 major renovations assisted per year”, each a cost of €2.6bn (1.2 to 3.6). Proposed value outside the range measured by the source: linear extrapolation (measured range: 91,374 homes only). A single year measured by Anah (2024: 91,374 major renovations, average aid per dwelling); any other value is a linear extrapolation, flagged as such. Central value brought down to the smallest amount (€1.2bn per step).
Assumption by the editors. Partial costing. Reading adopted, the same as for Marine Tondelier, Fabien Roussel and François Ruffin: the insulation of a dwelling is read as a major renovation, costed at the current average public aid (€26,100; lower bound: €11,800, average aid in jointly owned buildings), at the floor of « au moins 700 000 » [“at least 700,000”] dwellings per year, once the target is reached; any value other than that of 2024 is a linear extrapolation. The text says « isolés » [“insulated”], neither « globale » [“comprehensive”] nor « d'ampleur » [“major”]: insulation alone would cost less than a major renovation, hence the central value brought down to the lower bound.
Coefficient calculated by the editors from Chiffres clés de l'Anah 2024 (DREAL Corse): the position is marked as an assumption by the editors.
Central value brought down to the smallest amount: « logements isolés » [“insulated homes”]: the text says neither « globale » [“comprehensive”] nor « d'ampleur » [“major”], and insulation alone costs less than a major renovation; lower bound: average grant for a major renovation in a co-owned building (€11,800).
Current law, sources and limits of the cost schedule
Current law. The main instrument is MaPrimeRénov' (Anah). It comprises an assisted pathway for major renovations, per-measure aid and aid for co-owned buildings. It is supplemented by energy savings certificates (CEE). In 2024: 91,374 major renovations (€2,386m in aid) and 340,801 dwellings assisted in total (€3.29bn). The scheme was suspended from June to September 2025, then reopened on 23 February 2026 after the LFI 2026. The final amount of 2026 appropriations differs between sources (€3.5bn or €4.3bn in Anah commitments) and has not been checked in the act.
Horizon. Direct public aid in a full year. Anah 2024 scale in current euros. Includes neither the CEE (energy saving certificates), funded by energy suppliers, nor the cost of support services.
Limits. Central value: average aid across all major renovations (€2,386m / 91,374 ≈ €26,100). Lower bound: average aid in jointly owned buildings (€11,818). Upper bound: individual supported pathway (€36,271). In 2024, 59% of households aided for a major renovation were very low-income: a higher target would reach better-off households, with lower unit aid but an uncertain take-up rate. Fraud justified the 2025 suspension. A target announced in “renovated” homes is converted into major renovations before applying this cost schedule. Only the 2024 financial year is published by Anah in the sources read (key figures); 2025 volumes are known only from the press: the parameter's domain is limited to 2024.
- Chiffres clés de l'Anah 2024 (DREAL Corse), 2025: « « En 2024, 340 801 logement rénovés 3,29 Mds€ d'aides. » ; parcours accompagné « Aide moyenne par logement (en €) … 36 271 » ; copropriété « 11 818 » ; « TOTAL RÉNOVATION D'AMPLEUR … 91 374 … 2 386 » (M€) ; par geste « 3 622 » »
- MaPrimeRénov' 2026 : réouverture du guichet (monimmeuble.com, via résultat de recherche), 2026-02: « Le guichet a rouvert le 23 février 2026 après l'adoption du budget ; rendez-vous obligatoire avec un conseiller France Rénov' pour les rénovations d'ampleur. »
How to read these amounts. These are static costs and revenues, with no feedback effect, over a full year: nothing on growth, employment or the revenue that economic activity would gain or lose. A higher net cost does not on its own make a worse policy, nor net savings a better one: each programme rests on an economic model (demand-led stimulus, lower compulsory levies, consolidation of the public accounts…) that the cost schedule does not settle. GDP itself measures a volume of activity, not well-being or the usefulness of what is produced. Economic models and feedback effects.
- L’Avenir en commun, édition 2025 (La France insoumise), version 1 of 28 January 2025, p. 50. Open the document at this page.
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