SolarSizer - Solar & Battery

Professional off-grid solar, battery storage, and DC wire sizing engineering calculator for RVs, campervans, boats, marine vessels, and remote off-grid cabins! SolarSizer precisely sizes your energy storage, photovoltaic array, critical wiring, and protection equipment with zero internet dependency (100% offline-first). ⚡ KEY MODULES & CAPABILITIES: 1. Battery Bank & Consumption Sizing: • Calculate daily Wh & Ah loads for fridges, lights, water pumps, inverters, and custom loads. • Built-in DoD thresholds for LiFePO4, Gel, and AGM battery chemistries. • Autonomy reserve buffer for 1 to 5 sunless days. 2. Solar Array & Seasonal Tilt Angle Guide: • Recommended PV wattage & series/parallel panel arrangements based on local PSH. • Interactive 4-Season Tilt Simulator (Summer 24°, Equinox 39°, Winter 54°, Year-round 35°). • Flat camper roof (0°) winter glancing reflection loss demo and 180° South azimuth guide. 3. DC Wire Gauge & Voltage Drop Calculator: • Metric (mm²) and AWG gauge calculations for 12V, 24V, and 48V DC systems. • Compliance with standard <= 3% voltage drop safety margins with live power loss metrics. 4. 3 Critical System Lines & Fuse Sizing: • PV to MPPT Line: Cold Voc voltage calculations, short-circuit current (Isc), and gPV fuses. • MPPT to Battery Line: 1.25x charge current safety sizing and MIDI fuses. • Battery to Inverter Line: High-amperage surge handling, heavy cable sizing, and ANL/Mega fuses. 5. Interactive Wiring Diagram & BOM Material Sheet: • Dynamic schematic that updates live with cable cross-sections and fuse ratings. • One-tap clipboard export for project bill of materials (BOM). 6. Solar & Electrical Terminology Glossary: • 14 essential terms (Voc, Isc, DoD, MPPT vs PWM, Surge, AWG) explained clearly. 🔒 PRIVACY & OFFLINE FIRST: SolarSizer collects zero personal data, contains no ads, and operates entirely offline. Perfect for remote camping, boondocking, and marine navigation.