Hour-by-hour solar yield vs power draw simulator for RV boondockers. Know your SOC curve, MOVE Alert, and 7-day battery forecast — before you lose power.
Power Score
Estimates only — actual yield varies by panel condition, shading, and battery age.
Features
One number tells you if today's solar covers your load. Green means stay. Red means plan ahead.
168-hour battery simulation with temperature-derated solar yield and 3-phase charge acceptance model. Not a guess — a real calculation.
"SOC drops below 20% on Day 3 at 14:00." Know exactly when to relocate before your battery dies.
Toggle off the A/C, microwave, or any appliance and instantly see how many extra days you gain.
Off-season battery projection up to 90 days. Never come back to a sulfated AGM or dead LiFePO4 again.
Simulate your next destination before you arrive. "Joshua Tree in March — your rig holds 6 days without a generator."
Add a 200W panel or upgrade to LiFePO4 — see the exact SOC curve difference before you spend a dollar.
No account required. Rig profiles and appliance lists stored locally. Weather cached for offline use.
Battery Chemistry Supported
How It Works
Panel wattage, battery bank, system voltage, battery chemistry, inverter efficiency
Fridge, lights, laptop, A/C — SunRig models duty cycles, AC vs DC loads, and parasitic draws
Live 7-day SOC curve, MOVE Alert, and What-If simulator update automatically with weather
Free to use. Pro features $4.99/month.
Download on the App Store