⚡ 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 (2026-10-25)
☀️ Solar PV Array · 440W N-Type TOPCon · LiFePO4 Battery Storage

Solar System & Battery Sizing for 5,500 kWh/Month in Stockholm, Sweden

Complete photovoltaic engineering breakdown for a 5,500 kWh/month (183.3 kWh/day) electricity profile in Stockholm, Sweden (3.1 Peak Sun Hours/day).

Recommended Solar Array73.92 kWp168× 440W Solar Panels
LiFePO4 Battery Bank140.2 kWh119.2 kWh Usable + 66.0 kW Inverter
Annual Solar Generation66,912 kWhRoof Area: 344.4 m² (3707 ft²)
Estimated Annual Savingskr 123,787/yrPayback: ~8.7 yrs · 28.1t CO₂

Technical Specification Table — 5,500 kWh/Month Solar System (Stockholm, Sweden)

Monthly / Daily Electricity Consumption5,500 kWh/month (183.3 kWh/day)
Location Peak Sun Hours (PSH)3.1 hours/day (Stockholm, Sweden)
Required PV System Size (80% Performance Ratio)73.92 kWp DC
Number of Solar Panels (440W N-Type Bifacial)168 panels
Roof Area Required344.4 m² (3,707 sq ft)
Recommended Hybrid Inverter Rating66.0 kW AC
Recommended LiFePO4 Battery Storage (85% DoD)140.2 kWh Nominal (119.2 kWh Usable)
Estimated Annual Output66,912 kWh/year (~5,576 kWh/month)
Estimated System Turnkey Cost (Before Tax Credits)kr 1,071,840
Annual Electricity Bill Savings (@ kr 1.85/kWh)kr 123,787/year (kr 10,316/month)

Frequently Asked Questions

How many solar panels are needed for 5,500 kWh per month in Stockholm, Sweden?

With an average of 3.1 Peak Sun Hours per day in Stockholm, Sweden and an 80% system performance ratio, a monthly usage of 5,500 kWh (183.3 kWh/day) requires a 73.92 kWp solar array, which equals 168 standard 440W N-Type solar panels occupying 344.4 m² (3707 sq ft) of roof space.

What size solar battery bank do I need for 5,500 kWh/month?

To cover evening and overnight loads (65% of daily consumption at 85% LiFePO4 depth of discharge), a 140.2 kWh nominal (119.2 kWh usable) LiFePO4 battery bank paired with a 66.0 kW hybrid inverter is recommended.

How much money will a 73.92 kW solar system save in Stockholm, Sweden?

Generating approximately 66,912 kWh per year at an average local tariff of kr 1.85/kWh, the system saves kr 123,787 per year (kr 10,316/month) with an estimated payback period of 8.7 years.