Solar System & Battery Sizing for 950 kWh/Month in Geneva, Switzerland
Complete photovoltaic engineering breakdown for a 950 kWh/month (31.7 kWh/day) electricity profile in Geneva, Switzerland (3.8 Peak Sun Hours/day).
Technical Specification Table — 950 kWh/Month Solar System (Geneva, Switzerland)
| Monthly / Daily Electricity Consumption | 950 kWh/month (31.7 kWh/day) |
| Location Peak Sun Hours (PSH) | 3.8 hours/day (Geneva, Switzerland) |
| Required PV System Size (80% Performance Ratio) | 10.56 kWp DC |
| Number of Solar Panels (440W N-Type Bifacial) | 24 panels |
| Roof Area Required | 49.2 m² (530 sq ft) |
| Recommended Hybrid Inverter Rating | 9.4 kW AC |
| Recommended LiFePO4 Battery Storage (85% DoD) | 24.2 kWh Nominal (20.6 kWh Usable) |
| Estimated Annual Output | 11,717 kWh/year (~976 kWh/month) |
| Estimated System Turnkey Cost (Before Tax Credits) | CHF 25,872 |
| Annual Electricity Bill Savings (@ CHF 0.3/kWh) | CHF 3,515/year (CHF 293/month) |
Frequently Asked Questions
How many solar panels are needed for 950 kWh per month in Geneva, Switzerland?
With an average of 3.8 Peak Sun Hours per day in Geneva, Switzerland and an 80% system performance ratio, a monthly usage of 950 kWh (31.7 kWh/day) requires a 10.56 kWp solar array, which equals 24 standard 440W N-Type solar panels occupying 49.2 m² (530 sq ft) of roof space.
What size solar battery bank do I need for 950 kWh/month?
To cover evening and overnight loads (65% of daily consumption at 85% LiFePO4 depth of discharge), a 24.2 kWh nominal (20.6 kWh usable) LiFePO4 battery bank paired with a 9.4 kW hybrid inverter is recommended.
How much money will a 10.56 kW solar system save in Geneva, Switzerland?
Generating approximately 11,717 kWh per year at an average local tariff of CHF 0.3/kWh, the system saves CHF 3,515 per year (CHF 293/month) with an estimated payback period of 7.4 years.