The one-time payment (EIV): federal subsidy for everyone
The one-time payment (EIV) is the main federal subsidy for new solar installations. It is paid out via Pronovo and covers up to 30% of investment costs depending on system size.
For a typical 5 kWp system, you receive an EIV of approximately CHF 2,800–3,600 in 2026. It is paid once after successful commissioning – no ongoing contribution, no repayment.
EIV 5 kWp
approx. CHF 3,200
EIV 10 kWp
approx. CHF 5,800
Waiting time
2–6 months
Payment
One-time
Cantonal programmes: up to 45% total subsidy
Many cantons supplement the EIV with their own programmes. The most generous: Geneva (SIG Prime Énergie +25%), Vaud (cantonal programme +CHF 1,500), Valais (cantonal contribution +CHF 2,000).
In most cantons, the installation is also fully deductible as property maintenance – reducing the tax burden by a further 5–15% of installation costs.
- Geneva: SIG bonus +25% on installation costs
- Vaud: cantonal programme up to CHF 1,500
- Valais: cantonal contribution up to CHF 2,000
- All cantons: 100% tax deduction as property maintenance
Step by step: how to claim your subsidies
Good news: your installer typically handles the complete subsidy process. Still, it is worth understanding the steps.
- 1. Have installation completed (installer registers)
- 2. File Pronovo application (usually by installer)
- 3. Acceptance by grid operator
- 4. EIV payment after 2–6 months
- 5. Apply separately for cantonal contribution (if applicable)
- 6. Tax deduction in next tax return
PVPro partner installers handle all paperwork – you do not need to fill in anything.
New subsidies 2026: what is new?
2026 brings important changes: winter power bonus for steep installations, Local Energy Community (LEC) subsidies and in several cantons new solar obligation rules linked to increased funding.
- Winter power bonus: +20% EIV for installations from 60°
- LEC subsidy: bonus for community installations
- Solar obligation ZH/BE: obligation + full subsidy combined
- Batteries: separate cantonal contributions
Secure your subsidies – request a quote now
Our partner installers guarantee you the maximum subsidy. Free, non-binding and with guaranteed EIV processing.
Request a free quoteFAQ
How much is the EIV for an 8 kWp system in Switzerland in 2026?+
The EIV is calculated using a formula: base amount + per-kWp contribution. For 8 kWp, this gives approximately CHF 4,800–5,400 in 2026 depending on system type and canton.
Can I claim the EIV and cantonal subsidy at the same time?+
Yes, both subsidies can be combined. The EIV goes through Pronovo (federal), the cantonal subsidy separately through the cantonal office. Your installer coordinates both applications.
When is the EIV paid?+
The EIV is paid after successful commissioning and review by Pronovo. This typically takes 2–6 months. Most installers bridge this waiting period.
Does the tax deduction apply in all Swiss cantons?+
Yes. In all 26 cantons, solar installations can be deducted as property maintenance. The effective benefit varies by cantonal tax rate.