Energy renovation and the new Vaud law

Understanding energy renovation and the new Vaud law

📌 Why a new law?

The canton of Vaud is targeting a 60% reduction in CO₂ emissions by 2030.

Here are the main obligations:

1. Ban on heating oil and gas when replacing a system > 30 kW
2. Minimum CECB rating of D required before 2035-2040 depending on the quality of the envelope
3. Priority to insulation before any change of heating system

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The itinerary recommended by Thierry Schmid

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Heat pump: the acronyms to know

• PAC: heat pump
• COP: coefficient of performance (e.g. COP 3 = 1 kWh elec. → 3 kWh heat)
• PV: photovoltaic panels

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Common mistakes to avoid

1. Installing new windows before the ITE → thermal bridges
2. Changing the heating without insulating → reversed logic
3. Sizing the heat pump without a precise thermal assessment
4. Forgetting the asbestos diagnosis (mandatory for buildings prior to 1991)
5. Waiting until the last minute → craftsmen often fully booked

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Regulation and financial support

💰 Cantonal subsidies

• CHF 50-80/m² for ITE (facade and roof)
• CHF 5'000 for an air-to-water heat pump ≤ 15 kW
• +10% bonus for the Minergie label

💳 Complementary financing

1. Green mortgage at a reduced rate
2. Pillar 3a withdrawal (renewable share)
3. Condominium (PPE) fund (planned over 3 to 5 years)

🧾 Taxation: net amounts after subsidy are 100% deductible

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Outlook and innovations

• Plus-energy house: possible with heat pump + PV + battery + ITE
• Bio-sourced materials: e.g. wood fibre = better summer comfort (phase shift > 10 h)
• Material cost: beware of inflation on technical products

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Thierry's final advice

"Plan first, renovate next. A well-managed project begins with a clear diagnosis and a long-term vision."

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To go further

Find our practical articles on the EDIREX blog:

"Guide to renovation subsidies in the canton of Vaud"

"Energy renovation of the building envelope"

"Air-to-water or geothermal: cost and performance comparison"

Are you planning to insulate, change your heating system or install solar panels? Compare quotes from qualified companies on EDIREX.ch and secure your subsidies before the next legal deadlines.