Size your van's solar system before you buy a single panel.

Plain-English guides for RV and van owners: how much solar you need, which kit fits your budget, how to wire it safely, and which battery and inverter to pair with it.

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Volts, amps, watts and watt-hours in plain language. Read this first and the rest of the site will make sense.

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Solar Guide Hub is written by a solar technician with hands-on experience installing photovoltaic systems. The goal is simple, accurate guidance for people building their own mobile power setup.

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Why Accurate Sizing Matters Estimating your power consumption incorrectly can lead to frequent power outages or wasted budget. By listing every appliance you plan to run—from 12V refrigerators and LED lighting to laptops and water pumps—you can calculate your total watt-hours per day. This ensures your solar panels can fully replenish your battery bank even during cloudy days, and your inverter is rated to handle peak surge loads safely without tripping.