SolarCalc PV Pro+

SolarCalc PV Pro+ is a toolkit for solar installers, electricians, engineers and students. Size a PV system, check voltage drop, pick a cable, find the sun and look up reference data, all in one app with a clean dark and light design.

SOLAR PV TOOLS
• PV System Sizing: system kW and panel count from daily consumption
• Shadow Analysis: shadow length from obstacle height and sun elevation
• Sun Path: sun position, sunrise and sunset for your location
• Solar Map: pick any location and see estimated monthly irradiance and optimal tilt
• Energy Yield: estimated monthly and annual production and CO2 savings
• Voltage Drop and Ohm's Law for DC strings
• Solar Rooftop, Solar Water Pumping, Off-Grid Load and Off-Grid Sizing (Pro)
• Monthly Radiation and Panel Layout Optimizer (Pro)
• Camera Sun Finder: live camera view with sun position overlay (Pro)

ELECTRICAL TOOLS
• Cable Size: minimum cross-section for a maximum voltage drop
• Voltage Drop: single and three phase
• Ohm's Law, DC/AC Power, Power Factor, Motor HP, Inverter
• Conductor Resistance and Busbar Current
• Transformer, Fault Level and Earthing Conductor (Pro)

REFERENCE TABLES
• AWG & SWG wire gauges, IP ratings, resistivity, voltage classification
• AC breaker types, ANSI device numbers, power cable colour coding
• PV cell and module data, world electrical standards, cable short circuit ratings and transmission conductors (Pro)

WEATHER & COMPASS
• Current weather, 5-day forecast and air quality for your location
• Compass that shows how well a panel direction faces the sun

PROJECTS
• Save calculations as projects and export them as PDF reports (Pro)

SOLARCALC PRO: ONE-TIME PURCHASE
23 tools are free. Unlock all Pro tools and tables with a single one-time purchase. No subscription and no recurring fees.

PRIVACY
No account and no ads. Your location is only used, with your permission, for weather and sun calculations.

Note: Results are estimates for planning and education. Always have designs checked by a qualified professional and follow local electrical codes.