Solar Panel Installation Calculator

How to use it

1. Calculate power necessary: 15 kWh ÷ 4.5 HSP = 3.33 kW = 3333W
2. Consider pérdidas 20%: 3333W × 1.20 = 4000W
3. Calculate paneles: 4000W ÷ 450W = 8.89 → 9 paneles
4. Baterías 1 day: 15 kWh × 1.20 = 18 kWh (Consider depth descarga 50%: 36 kWh)

Common mistakes

• ⚠️ Not Consider pérdidas of the system (inversor, cables, temperature)
• ⚠️ Dimensionar batteries without Consider depth of descarga
• ⚠️ Not orientar paneles correctly (sur in hemisferio norte)

Worked example

Calculate solar installation for daily consumption of 15 kWh with 4.5 HSP.

To {consumption_diario_kwh} kWh/day with {hsp_dia} HSP need {power_total_w}W of paneles ({paneles_ud} paneles of {power_panel_w}W). Baterías: {capacity_kwh} kWh to 1 day.

Input guide