Inverter & Charge Controller Calculators
Size inverters and charge controllers for your solar system.
27 calculators
🔄 Solar Inverter Size Calculator
What inverter wattage for your loads? Including surge.
🔌 Inverter Sizing Calculator
Match your inverter to peak and continuous loads.
⚙ Charge Controller Calculator
MPPT or PWM? Calculate the right amp rating.
🔧 MPPT Calculator
MPPT charge controller sizing and optimization.
⚖ MPPT vs PWM Calculator
Compare MPPT and PWM performance and cost.
🔗 String Sizing Calculator
Panels in series vs parallel — voltage optimization.
🔸 Microinverter Calculator
Microinverter vs string inverter comparison.
📈 Inverter Load Calculator
Calculate total load on your inverter.
⚡ Surge Watt Calculator
Startup surge watts for motors and compressors.
🔄 Hybrid Inverter Calculator
Hybrid inverter sizing for grid-tie + battery.
🌐 Grid-Tie Inverter Calculator
Grid-tied inverter sizing for net metering.
📊 Power Factor Calculator
Real vs apparent power for motor loads.
🔄 Inverter Clipping Loss Calculator
Calculate energy lost from DC:AC ratio oversizing.
🔌 SolarEdge vs Enphase
String inverter vs microinverter comparison.
📊 Tesla vs SolarEdge vs Enphase
3-way inverter topology comparison.
🔄 Growatt vs Victron
Budget vs premium off-grid inverter comparison.
📊 Inverter Efficiency Curve
CEC vs Euro weighted efficiency.
📊 Fronius vs SMA
Premium European string inverters comparison.
📊 Sol-Ark vs EG4
Hybrid inverter + bypass switch cost comparison.
📊 Huawei vs Sungrow vs SMA
3-way comparison with US/UK ban logic.
🔸 Hoymiles Microinverter Calculator
Budget Enphase alternative microinverter sizing.
🔄 Sungrow Inverter Calculator
World #1 inverter manufacturer sizing guide.
🔄 Solis Inverter Calculator
Budget hybrid with Pylontech support sizing.
🔄 Deye Inverter Calculator
Off-grid + hybrid stackable to 192kW sizing.
🔸 APsystems Microinverter Calculator
Multi-MPPT bifacial value tier microinverter sizing.
🔄 GoodWe Inverter Calculator
Hybrid + battery integration inverter sizing.
🔄 FoxESS Inverter Calculator
UK SEG-optimized hybrid inverter sizing.