Advanced Solar Calculator Pro 2026 – Solar VFD, ROI & Multi Motor Design Tool
Solar Calculator Pro
Solar ROI Analysis Report
30-Year Solar Return on Investment Analysis
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Solar VFD System Design Report
Solar VFD System Specification
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Multi-Motor Solar System Report
Multi-Motor Solar System Engineering Summary
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Solar VFD, ROI & Multi Motor Solar Calculator for Industry & Agriculture
Solar Calculator Pro is India's most comprehensive industrial solar sizing tool. Design solar VFD systems for agriculture pumps, cold storage units, rice mills, atta chakki, and multi-motor factories. Get instant string design, panel counts, ROI analysis, and proposal-grade PDF reports — completely free.
⚡ Solar VFD Calculator
Precisely size solar VFDs for 1-phase and 3-phase motors. Enter HP, current & RPM — get instant VFD rating, panel count, string design, and DC voltage range.
☀️ Solar ROI Calculator
30-year cashflow model with panel degradation, tariff escalation, and maintenance. See exact payback year, cumulative profit, and annual savings.
🔧 Multi Motor Solar Calculator
India's first multi-motor solar VFD calculator. Group motors by phase and RPM, get separate VFD and panel design for each group — ideal for factories and cold storage.
📄 Proposal PDF Export
Generate client-ready solar design reports with system summary, string design, motor breakdown, and 30-year financial analysis — all in one click.
Industry Solar Calculator Applications
Cold Storage Solar
Size multi-motor solar VFD systems for cold storage compressors and cooling units. Reduce electricity bills by 80–100%.
Rice Mill Solar Design
Solar VFD systems for rice hullers, polishers, and blowers. Calculate exact panel count for each motor separately.
Atta Chakki Solar
Solar-powered atta chakki systems. Single-phase and three-phase VFD sizing for flour mills of all capacities.
Agriculture Solar Pump
Solar VFD for bore wells and irrigation motors. 1 HP to 150 HP, single and three phase. Full string design included.
Factory Multi Motor Solar
Design solar systems for 2–10 motors running simultaneously. Grouped by phase and RPM for optimal VFD selection.
How Solar VFD Sizing Works
Note HP (or kW), full load current (Amps), RPM, voltage, and phase from your motor's nameplate plate. Current accuracy directly affects VFD and panel sizing.
Same HP motor at 960 RPM draws more current than at 1440 RPM. A 5 HP motor at 1440 RPM draws ~7.4A while the same motor at 960 RPM may draw ~7.7A. RPM selection improves VFD accuracy.
Single-phase VFDs are available up to 5 HP (16A max). For higher loads, three-phase solar VFDs are required. Three-phase motors also offer better efficiency and longer life under solar VFD operation.
Solar VFDs need a minimum DC voltage range (typically 500–900V). Panel strings are sized to deliver this voltage. Fewer strings are preferred to reduce wiring cost while maintaining safe operating current.
Frequently Asked Questions
For over 20 years, we have been a trusted provider of Solar System/Services in India. Our expert team delivers sustainable and affordable solutions customized to your needs, earning us a reputation for excellence in the industry. Let us help you harness the power of solar energy today for a greener tomorrow.