Electrical Design Calculators
High-precision engineering calculators and simulation tools developed by EarthX Designs for solar EPC contractors, developers, and electrical engineers.
Solar Engineering Suite
Explore specialized design calculators and simulation utilities developed by EarthX Designs.
PVsyst .PAN File Generator
Under Development (On Hold)Automated module datasheet parsing and diode modeling algorithm suite. This interactive generator is currently on hold for scheduled mathematical optimization & validation to deliver zero-warning, bankable .PAN files for PVsyst energy yield simulation.
Upcoming Electrical Calculators
We are constantly expanding our electrical engineering suite. More specialized calculators will be available soon.
Solar String Sizing Calculator
Compute minimum and maximum series modules per string based on extreme site temperatures, inverter MPPT voltage window, and maximum Voc thresholds.
DC/AC Cable Sizing & Voltage Drop
Calculate exact cable cross-sections (Cu/Al), allowable ampacity derating, and voltage drop percentage across solar string cables and AC feeders.
Inverter DC/AC Overload Ratio
Optimize inverter DC loading ratio (ILR / DC-to-AC ratio) to evaluate clipping losses versus levelized cost of energy (LCOE) gains.
Earthing & Grounding Sizing
Determine equipment grounding conductor (EGC) and grounding electrode conductor (GEC) sizing conforming to IEEE 80 and IS/IEC 62305 standards.
BESS Energy Storage Sizing
Estimate battery energy storage capacity (kWh/MWh), C-rate requirements, and state-of-charge (SOC) cycles for solar-plus-storage applications.
Solar Step-Up Transformer Sizing
Calculate kVA rating, impedance values, and harmonic K-factor derating for solar inverter duty transformers (IDTs).
Need a Custom Electrical Calculation or Full Engineering Package?
Our electrical and solar engineers provide complete SLD schematics, cable scheduling, short circuit calculations, protection coordination, and PVsyst yield simulation reports.
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