Estimate your daily energy use and find the right battery, solar panels and inverter for your van — no spreadsheets or electrical knowledge required.
Building a van is exciting—but figuring out the electrical system? That's tricky. It's normal to feel lost. From batteries and inverters to wiring and efficiency, there's a lot to take into account. We'll help you make it work so your lights stay on and your devices stay powered.
Buy components based on your actual needs instead of guesswork.
Follow a proven planning process instead of piecing together information from dozens of sources.
Understand how batteries, charging, distribution, and wiring fit together before you start buying parts.
Turn a complex electrical system into a series of manageable steps.
Enter all your appliances like fridges, laptops and fans.
We calculate your daily energy usage and recommend the ideal battery capacity and solar wattage for your van.
Professional-grade planning tools and calculators designed specifically for DIY van and RV builders.
Deep dives into the technical details to help you build a safer, more efficient van electrical system.
Seven clear steps for campervan or RV electrics—from daily energy to wiring. Then size battery and charging with VanlyFacture.
Read guideSeven clear steps for campervan or RV electrics—from daily energy to wiring. Then size battery and charging with VanlyFacture.
Estimate your campervan's daily energy needs in Wh/day. List what you run, calculate each device, and add up your total.
Read guideEstimate your campervan's daily energy needs in Wh/day. List what you run, calculate each device, and add up your total.
Follow our step-by-step guide to plan your van electrical system — no stress, no guesswork.