Free solar sizing tool

Size the right solar kit before you buy the wrong one.

Estimate your solar panels, battery bank, inverter, and system voltage for home backup, RVs, cabins, and DIY off-grid builds.

No installer sales pressure. No magic numbers. Just practical sizing ranges and a shopping-list style result.

Prototype calculator

What are you trying to size?

Pick the path closest to your situation. We can combine these later, but this keeps the first version simple and beginner-friendly.

Full home solar from electric bill

Appliance / off-grid sizing

Backup power sizing

Design idea

A calculator that explains the answer

1. Start with intent

Home bill, appliance loads, or backup essentials. Different buyers need different math and different products.

2. Show sizing ranges

Give practical ranges for solar watts, battery kWh, inverter watts, and 12V/24V/48V system voltage.

3. Turn math into a shopping list

Translate the result into equipment categories and later add affiliate product cards by size tier.

SEO content map

First guides to build around the calculator

Affiliate-ready structure

Equipment recommendations will be added by result tier.

For the prototype, recommendations are neutral categories. Once affiliate accounts are approved, we can map each result to partners like A1 SolarStore, Signature Solar, Renogy, EcoFlow, BLUETTI, Anker SOLIX, Current Connected, RICH SOLAR, and LiTime.