In 2026, stackable grants for energy transition in French-speaking Switzerland can reach 15,000 to 25,000 CHF depending on solution and canton. But you need to know the right levers, deadlines, eligibility conditions — and how to file an application that gets approved.
The 3 levels
- Federal: Building Programme + One-Time Payment (RU) for PV.
- Cantonal: each canton has its own schedule.
- Municipal: certain communes offer additional premiums (Geneva-City, Lausanne, Lutry, Meyrin, etc.).
Key takeaway. A well-prepared application maximizing all three levels can double the grant amount vs. a federal-only request.
Federal: Building Programme
Covers heat pumps (~4,000 CHF), thermal insulation (25-70 CHF/m² by component), and CECB Plus audits (1,300-1,500 CHF).
Federal: PV One-Time Payment (RU/PRU)
Paid by Pronovo after commissioning. Replaces the former RPC removed in 2023.
| Power | Small (PRU) | Large (GRU) |
|---|---|---|
| 2-30 kWp | ~1,000-1,400 CHF/kWp | – |
| 30-100 kWp | – | ~600-900 CHF/kWp |
Cantonal Geneva
- Air-source HP: ~5,500 CHF
- Geothermal HP: ~9,000 CHF
- PV residential: ~300 CHF/kWp
- Solar thermal: ~350 CHF/m² collector
Cantonal Vaud
- Air-source HP: ~5,000 CHF
- Geothermal HP: ~8,000 CHF
- PV: 200-400 CHF/kWp
Cumulative example
Lausanne home, geothermal HP + 8 kWp PV:
| Source | Amount |
|---|---|
| Federal Building Programme | 4,000 CHF |
| Cantonal VD geo | 8,000 CHF |
| Federal RU PV | 6,400 CHF |
| Cantonal VD PV | 2,800 CHF |
| Total | 21,200 CHF |
In practice
- Ecotech grants calculator: 2026 GE/VD schedules with personalized total.
- Savings simulator: integrates cantonal grant in ROI calculation.
For an application prepared at no cost by an eco-advisor, request a free quote — reply within 48h.
Want to go further?
Request a tailored study for your building. An eco-advisor calls back within 48h.