☀️ How Much Solar Do You Need for Van Life?
February 28, 2026 · 5 min read
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Solar is the heartbeat of off-grid van life. Too little and you're rationing phone charges like a doomsday prepper. Too much and you've blown $3K on panels you'll never fully use. Let's find your sweet spot. ⚡
Quick Sizing Guide
Phones, lights, a fan. Weekend warriors and minimalists.
Laptop, fridge, lights, fans. The full-time van lifer sweet spot.
AC, microwave, hair dryer, coffee machine. The 'I brought my apartment' setup.
The Math Behind It
Add up your daily watt-hours: a fridge uses ~40Wh/hr × 24hrs = 960Wh/day. A laptop is about 200Wh/day. Lights and phones? Maybe 100Wh. Total that up, then divide by your average sun hours (4-6 depending on location) to get your panel wattage.
Example: 1,260Wh daily ÷ 5 sun hours = 252W of solar needed. Round up to 300W for cloudy days and inefficiency losses.
Battery: The Other Half
Your battery bank should store at least 1.5–2× your daily usage so you never drain below 20% (that kills lithium batteries slowly). For 1,260Wh daily use, aim for 200Ah of lithium (12V × 200Ah = 2,400Wh capacity).
Don't Forget the Charge Controller
MPPT controllers are worth the extra cost over PWM — they're 25-30% more efficient. Size it to handle your total panel wattage plus a little headroom. Browse Renogy MPPT controllers for reliable options at every budget.
☀️ Our Top Pick for Van Solar
We recommend Renogy complete solar kits — panels, controller, and wiring in one box. Or shop individual panels if you're building a custom setup.
Let Us Do the Math
Skip the spreadsheet — plug your devices into our solar calculator and get your exact panel, battery, and controller recommendations in seconds. ☀️