⚡ Cu ρ (75°C): 0.0214 Ω·mm²/m 🔌 NEC / IEC Standards: NFPA 70 & IEC 60364 🇺🇸 US Grid Avg: $0.175/kWh 🇩🇪 DE Grid Avg: €0.345/kWh 🇸🇪 SE Elpris: 1.54 SEK/kWh 🇳🇴 NO Strøm: 1.17 NOK/kWh 🔩 Copper Ref: $9,650/t (2026-10-24)
☀️ Solar PV Array · 440W N-Type TOPCon · LiFePO4 Battery Storage

Solar System & Battery Sizing for 3,400 kWh/Month in Berlin, Germany

Complete photovoltaic engineering breakdown for a 3,400 kWh/month (113.3 kWh/day) electricity profile in Berlin, Germany (3.4 Peak Sun Hours/day).

Recommended Solar Array41.8 kWp95× 440W Solar Panels
LiFePO4 Battery Bank86.7 kWh73.7 kWh Usable + 37.3 kW Inverter
Annual Solar Generation41,499 kWhRoof Area: 194.7 m² (2096 ft²)
Estimated Annual Savings€14,940/yrPayback: ~4.6 yrs · 17.43t CO₂

Technical Specification Table — 3,400 kWh/Month Solar System (Berlin, Germany)

Monthly / Daily Electricity Consumption3,400 kWh/month (113.3 kWh/day)
Location Peak Sun Hours (PSH)3.4 hours/day (Berlin, Germany)
Required PV System Size (80% Performance Ratio)41.8 kWp DC
Number of Solar Panels (440W N-Type Bifacial)95 panels
Roof Area Required194.7 m² (2,096 sq ft)
Recommended Hybrid Inverter Rating37.3 kW AC
Recommended LiFePO4 Battery Storage (85% DoD)86.7 kWh Nominal (73.7 kWh Usable)
Estimated Annual Output41,499 kWh/year (~3,458 kWh/month)
Estimated System Turnkey Cost (Before Tax Credits)€68,970
Annual Electricity Bill Savings (@ €0.36/kWh)€14,940/year (€1,245/month)

Frequently Asked Questions

How many solar panels are needed for 3,400 kWh per month in Berlin, Germany?

With an average of 3.4 Peak Sun Hours per day in Berlin, Germany and an 80% system performance ratio, a monthly usage of 3,400 kWh (113.3 kWh/day) requires a 41.8 kWp solar array, which equals 95 standard 440W N-Type solar panels occupying 194.7 m² (2096 sq ft) of roof space.

What size solar battery bank do I need for 3,400 kWh/month?

To cover evening and overnight loads (65% of daily consumption at 85% LiFePO4 depth of discharge), a 86.7 kWh nominal (73.7 kWh usable) LiFePO4 battery bank paired with a 37.3 kW hybrid inverter is recommended.

How much money will a 41.8 kW solar system save in Berlin, Germany?

Generating approximately 41,499 kWh per year at an average local tariff of €0.36/kWh, the system saves €14,940 per year (€1,245/month) with an estimated payback period of 4.6 years.