Compare Modules

Select two modules to overlay their IV/PV curves, diff every CEC spec, and check whether a string of each fits your inverter's DC voltage window.

Modules

Module A

Manufacturer

Model

Module B (optional)

Manufacturer

Model

Irradiance (W/m²)

Cell temp (°C)

Select Module A above to get started — add Module B to see a full diff.

IV Curve

PV Curve

Spec Diff

String Quick-Calcs

Modules per string

Design low temp (°C)

Hot cell temp (°C)

Inverter (optional — needed for the pass/fail check)

Vac (V)

MPPT low (V)

Vdc max (V)

V_mppt,min (V)

String Voc(cold) = (Voc,ref + β_oc·(T_low−25)) × N. String Vmp(hot) uses a Vmp temperature coefficient approximated as half of γ (Pmax tempco) — the same current/voltage split convention documented for vmp_share in the Analyzer's MPPT-limiting check (apps/api/iv_diagnosis.py): degradation (and, here, temperature-driven power change) is assumed to load half onto voltage and half onto current. A flag compares the result against the inverter's Vdc max and V_mppt,min = max(Mppt low, Vac·√2).