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Solar system report builder

Enter your details once and get a complete off-grid system design — panels, battery bank, inverter and expected yearly output — then download it all as a professional PDF report you can keep or share.

Your total energy used per day.
Average daily peak sun hours at your site.
Pick a common size or choose "Other".
Battery bank voltage.
Usable share — ~50% lead-acid, ~80–90% lithium.
Backup days with no sun.
Real-world losses (heat, dust, wiring). ~25% typical.

Your system at a glance

A first-pass design from your inputs. Use it as a starting point, then refine with the individual calculators.

☀️ Solar array

0array size (kW)
0panels needed

🔋 Battery bank

0battery bank (kWh)
0capacity (Ah)

⚡ Inverter & output

0inverter size (kW)
0yearly output (kWh)

Estimates only — a first-pass sizing to guide your design, not a substitute for a full site survey. Array = daily use ÷ (peak sun hours × efficiency). Battery = (daily use × autonomy days) ÷ depth of discharge.

How this report is built

This page ties the core off-grid calculations together so you can see a whole system from one set of inputs. The solar array is sized so it replaces your daily energy use after real-world losses: array kW = daily kWh ÷ (peak sun hours × efficiency). The battery bank is sized to cover your usage across the autonomy days you choose, divided by the usable depth of discharge. The inverter is suggested from the array size, and the yearly output is the array's realistic annual generation.

Each figure is a sensible first pass. To refine any part, jump to its dedicated tool: the panel calculator, battery calculator, days of autonomy calculator, inverter calculator, and energy production calculator. For the bigger picture, see the system sizing guide.