Design Your Off-Grid Solar System

Free, fast, no signup required. Enter your appliances, pick your location, and get a complete solar + battery system design in seconds.

Start Designing →

☀️ Powered by NREL solar data | ⏱ Takes 2 minutes

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Step-by-Step Wizard

Tell us what appliances you want to run. We handle the math.

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Your Location Matters

Real solar data from NREL for your city. No guesswork.

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Complete System Design

Battery bank, solar panels, inverter, and charge controller — all in one report.

How It Works

1

Add Your Appliances

Select from common off-grid appliances or add custom ones. We calculate your total daily energy usage.

2

Choose Your Location

Type your city. We fetch real peak sun hours from the NREL database.

3

Configure Your System

Choose battery type, voltage, and other preferences. Smart defaults for beginners.

4

Get Your Results

Instant system design with component recommendations and cost estimates.

What Size Solar System Do I Need?

It depends on your energy usage. A typical off-grid cabin running lights, a fridge, laptop, and ceiling fan needs about 1.5–3 kW of solar panels and a 5–10 kWh battery bank. Use our calculator to get an accurate design for your specific needs.

Calculate Your System →