Solar Calculators
Design rooftop and utility PV: arrays, batteries, inverters and yield.
41 calculators
41 results
- EV + Transformer + Solar System Sizing PopularSelect an Indian EV and Havells charger, size charging load and transformer, then optionally size solar for EV energy.Open tool
- Solar Generation Calculator PopularQuick PSH estimate or a full month-by-month generation model with an IEC 61724-1 loss chain, specific yield,…Open tool
- Solar MMS Structural Design & STAAD Pro Calculator PopularGuided manual MMS calculations plus STAAD-ready actions from module geometry and wind loads through member…Open tool
- Battery Backup Calculator PopularFull battery sizing chain — connected load, diversity, inverter and battery efficiency, DoD, temperature…Open tool
- DC Cable Size Calculator (12V / 24V / 48V) PopularSize low-voltage DC cable for 12 V, 24 V and 48 V systems from run length and amps — get the required mm²,…Open tool
- AC Cable Sizing CalculatorEngineering-grade inverter-to-panel AC cable design: full load current, ampacity derating, voltage drop, I²R…Open tool
- Solar Plant Earthing Design CalculatorDesign a complete solar PV plant earthing system to IEEE Std 80: earth-grid conductor thermal sizing, grid…Open tool
- Solar PV System SizeEnergy-based PV sizing from daily, monthly or annual consumption: required kWp, module count, installed DC…Open tool
- Solar Panel Count CalculatorCalculate the whole number of solar panels needed for a target kWp using the actual module wattage, then…Open tool
- Roof Area RequiredPhysical + gross roof area with maintenance corridors.Open tool
- Inverter SizingRecommend inverter AC rating from PV DC and DC/AC ratio.Open tool
- Battery Bank SizeBank Ah + count for autonomy-driven off-grid storage.Open tool
- Charge Controller SizeMPPT / PWM controller current rating.Open tool
- DC Cable SizingCopper/Aluminium cable size from voltage drop and thermal derating.Open tool
- Voltage Drop CheckVoltage drop and % for a chosen cable size.Open tool
- Solar PV String Sizing CalculatorCalculate PV modules per string, string voltage, MPPT operating range, temperature-adjusted voltage, parallel…Open tool
- Optimal Tilt AngleFixed tilt recommendations from site latitude.Open tool
- Azimuth Deviation LossAnnual energy loss vs deviation from true south (N-hem).Open tool
- Shading LossAnnual generation loss from partial shading.Open tool
- Temperature LossPower derating from cell temperature above STC 25 °C.Open tool
- CO₂ Emissions SavedLifetime GHG savings from displaced grid electricity.Open tool
- Grid Bill OffsetMonthly bill offset from a solar system.Open tool
- Solar Water PumpPV capacity needed for a DC/AC solar pump.Open tool
- Solar Water HeaterFlat-plate / ETC collector area for hot-water demand.Open tool
All solar calculators A–Z
- AC Cable Sizing
- AC Cable Sizing Calculator
- Azimuth Deviation Loss
- Battery Backup Calculator
- Battery Bank Size
- Charge Controller Size
- CO₂ Emissions Saved
- Conduit Fill
- DC Cable Size Calculator (12V / 24V / 48V)
- DC Cable Sizing
- Diesel Generator Savings
- EV + Transformer + Solar System Sizing
- EV Charging from Solar
- Fuse & Breaker Sizing
- Grid Bill Offset
- Hybrid Inverter Sizing
- Inverter Sizing
- Irradiance → Energy
- LCOE (Levelised Cost)
- Monthly Yield Split
- Net Metering Credit
- Optimal Tilt Angle
- Panel Degradation
- Peak Sun Hours
- Performance Ratio (PR)
- ROI & Payback Period
- Roof Area Required
- Shading Loss
- Solar Generation Calculator
- Solar Loan EMI Calculator
- Solar MMS Structural Design & STAAD Pro Calculator
- Solar Panel Count Calculator
- Solar Plant Earthing Design Calculator
- Solar PV Inter-Row Spacing Calculator
- Solar PV String Sizing Calculator
- Solar PV System Size
- Solar Water Heater
- Solar Water Pump
- Temperature Loss
- Voltage Drop Check
- Wind Load on Module
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