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solar pv quote: is the price right?
For “solar pv” work, a typical Swiss quote ranges from CHF 17'200 to CHF 34'000 including VAT for a mid-sized project. Here are the items it should contain and the questions to ask.
Reference price
Typical project: 10 kWc · 1003 · House
Low
CHF 17'200
Central
CHF 24'800
High
CHF 34'000
Items a complete quote must include
Scaffolding (erection, hire, removal)
Major item, often 10–20% of the budget.
Inverter (brand, rating)
Most failure-prone part; check warranty.
Electrical connection
Often subcontracted and missing from the main quote.
Grid operator registration
Required to feed power into the grid.
One-off subsidy filing (Pronovo)
Who handles it?
Commissioning and settings
Required for warranty and grants.
Common pitfalls
- A deposit above 30% before work starts.
- Lump sums without quantities or unit prices.
- No brand or model for equipment.
- No mention of VAT, validity or timeline.
- Disposal, scaffolding or connections missing.
- A price far below other quotes, unexplained.
Questions to ask the contractor
- Is “Scaffolding (erection, hire, removal)” included in the price?
- Is “Inverter (brand, rating)” included in the price?
- Is “Electrical connection” included in the price?
- Could you break down the lump sums (quantities, unit prices, materials)?
- Which warranty applies (SIA 118, duration)?
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