SolutionsCommercial & Industrial
Commercial Solar & Self-Consumption Switzerland 2026
Large flat roofs with high daytime consumption. GREIV (from 100 kWp) and tax depreciation make PV a solid investment.
Typical key figures
30–1000 kWp
System size
100 kWp
GREIV from
60–90 %
Self-consumption
6–10 years
Payback period
Your benefits at a glance
GREIV instead of KLEIV from 100 kWp
More attractive performance contribution per kWp in the GREIV programme.
Tax depreciation
Investment costs fully and immediately deductible as business expenses in Switzerland.
High self-consumption = direct return
Each kWh self-consumed saves 25–40 Rp./kWh – far more than the feed-in tariff.
Independent from price fluctuations
25-year system lifespan protects against further electricity price increases.
Frequently asked questions
Difference between KLEIV and GREIV?
KLEIV: under 100 kWp, CHF 700 base lump sum. GREIV: from 100 kWp, higher per-kWp contribution.
Can I deduct a solar system as business expense?
Yes – for AG/GmbH, fully deductible immediately.
Does battery storage make sense for businesses?
Mainly if significant consumption also occurs evening/night.
Your business – your solar power
Calculate your personal solar potential – free and non-binding.
Calculate subsidy