Energy Renovation Technical Proposal: Responding to Energy Performance Contracts
Comprehensive energy renovation of public buildings has become a national priority with the tertiary decree and Climate and Resilience Act. These complex contracts require coordinated multi-trade approaches and measurable performance commitments.
Regulatory context of energy renovation contracts
The tertiary decree imposes a 40% energy consumption reduction by 2030 for all tertiary buildings over 1000 m². The Climate and Resilience Act progressively bans rental of thermal sieves. These obligations generate considerable contract volumes, but the buyer expects offers structured around an energy audit, prioritised works scenarios, and post-works performance commitments.
Structuring your proposal around the energy pathway
A winning energy renovation proposal is organised in four phases reflecting the building's journey.
Audit and diagnosis
The initial energy audit is the foundation of your proposition. Detail your methodology: technical site visit, historical consumption collection, thermography, dynamic thermal simulation if necessary. The objective is to identify savings potential by category and quantify reduction potential in kWh/m²/year.
Works scenarios and financial structuring
Propose at minimum two scenarios ranked by cost/effectiveness, each with: works detail by category, estimated energy gain in kWh and EPC class, projected cost, return on investment, and available aids (CEE, MaPrimeRénov' collective, ADEME heat fund).
Monitoring and performance guarantee
Detail your commissioning and post-works monitoring plan: metering instrumentation, IPMVP measurement and verification protocol, periodic reporting, first-year operational adjustments.
Tertiary decree: demonstrating compatibility
For buildings subject to the tertiary decree, your proposal must explicitly demonstrate that proposed works enable meeting regulatory milestones: -40% by 2030, -50% by 2040, -60% by 2050 versus the reference year.
Common errors in energy renovation proposals
Trade-by-trade approach without overview — Insulating without adapting ventilation and heating creates pathologies and prevents achieving performance targets.
No thermal simulation — Without calculations, claimed savings are merely marketing estimates.
Forgetting financial structuring — CEE and public aids are often the economic driver. Not integrating them is a major gap.
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