Benefit from investment aid
New regime from 2025
In accordance with Article 14, paragraph 1 (point 5) of the Law of 15 December 2020 on Climate, amending the modified Law of 31 May 1999 establishing a fund for environmental protection, municipal administrations, municipal syndicates and public institutions under municipal supervision may benefit from investment aid for projects relating to:
- renewable energy and energy efficiency;
- adaptation to climate change;
- promotion of sustainable construction and housing;
- promotion of low or zero CO2 emission road vehicles.
This aid is available to all municipalities, regardless of their commitment to the Pacte Climat.
Under the new financial support regime set out by Circular 2025-050, which will fully enter into force on 1 January 2026, more transparent eligibility criteria, new categories of projects, and a simplified administrative process have been introduced.
Transitional phase until 31 December 2025:
- During this period, applications may be submitted either under the former regime (Circular No. 3969 of 5 March 2021) or under the new regime (Circular 2025-050);
- As of 1 January 2026, only the new regime will apply.
An updated practical guide, along with standardised application forms, is available to help applicants prepare their submissions.
2025 FR versions
Application forms for financial support
2025 FR versions