Will solar actually run your RV? What works — and what won't.
Most RV solar advice sells you a kit and hopes for the best. We start from the honest math: here's what a realistic van/RV setup can run, where it quietly falls short, and the exact system that actually covers it — so you buy once.
What works — and what won't — for a typical rv & van life
Based on a realistic load list (led light, phone charger, laptop, 12v fan, mini fridge, rv water pump, starlink). Here's where setups like this actually trip up — the part the wattage math doesn't show.
Fridges and freezers surge hard and never turn off
Compressors pull 3–5× their running watts to start, and because they cycle 24/7 they quietly dominate your daily watt-hours — especially in summer heat. Modified-sine power makes them buzz and shortens compressor life.
Fix: Pure-sine inverter, and size the battery for the all-day cycling load. In hot climates add ~30% to the fridge's estimated draw.
Always-on Starlink is often the single biggest line item
At ~75–100W running 24/7, that's ~1.8–2.4 kWh every day — and in low-sun winter it's frequently the load that drains the battery first.
Fix: Size the battery for 2–3 cloudy days, or put Starlink on a scheduled/idle power cut overnight. It's a continuous load, not a peak one.
One day of battery autonomy is thin for the critical loads you listed
You have loads that can't simply wait for sun — fridge/freezer, a pump, medical gear, or always-on connectivity. A single overcast stretch can take the bank to empty before noon.
Fix: Plan 2–3 days of autonomy for critical setups. Bump the "days of autonomy" input and re-check the battery size.
The system that actually covers it
Sized for this load at 5 peak sun hours/day and 1 day of autonomy.
The full bill of materials
Not your exact setup? Adjust it in the planner
We'll pre-load this rv & van life list — add or remove appliances and the verdict + sizing update for you.