---
title: "Solar System Size Calculator Kenya: Panels, Inverter, Battery | Qyvea"
url: https://qyvea.co.ke/solar-system-size-calculator-kenya
description: "Free solar calculator for Kenya: enter your daily energy use, peak load and backup hours to get the number of panels, inverter size and battery capacity."
updated: 2026-10-17
---

> Markdown copy of https://qyvea.co.ke/solar-system-size-calculator-kenya for AI assistants. Prices and stock change; check the live page.

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Free tool · Calculator

# Solar System Size Calculator

A quick estimate of the solar panels, inverter and battery a home or shop needs. For a final design we survey your site.

Daily energy use (kWh per day)

Peak load at one time (kW)

Peak sun hours (Kenya 4.5 to 6)

Panel size (W)

Backup hours without sun

Battery type

Enter your numbers above.

## How it is calculated

Panels = daily kWh / (sun hours x panel kW x 0.75 system losses). Inverter = peak load x 1.25. Battery = average load x backup hours / usable fraction. Roof area assumes about 2.6 square metres per panel.

Results are estimates for planning. Real systems depend on site conditions; Qyvea surveys and quotes before installation.

## Tips from our installers

- List appliances and their running hours to find your daily kWh honestly.
- Motors, pumps and fridges start with a surge: check the inverter's surge rating.
- Shade, roof angle and dust change real output.

## Frequently asked questions

How many panels for 8 kWh a day?

About 4 to 5 panels of 550 W at 5 sun hours with 25% losses; use the calculator for your exact numbers.

Do I need a battery?

Only for power at night or during outages; grid-tied systems can run without one.

Is this a quote?

No, it is a sizing estimate. A site survey checks roof, shade and wiring.

## Related

- [Solar installation in Kenya](https://qyvea.co.ke/solar-installation)
- [Solar panels in the store](https://qyvea.co.ke/products?search=solar%20panel)
- [Solar and power backup solutions](https://qyvea.co.ke/solar-solutions)
- [All Qyvea calculators](https://qyvea.co.ke/calculators-kenya)

Need it supplied and delivered? [Send us the result on WhatsApp](https://wa.me/254113301244?text=Hi%20Qyvea%2C%20I%20used%20the%20Solar%20System%20Size%20Calculator%20and%20need%20a%20quote). We deliver across Kenya.

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---
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