pvlib.pvsystem.max_power_point

pvlib.pvsystem.max_power_point(photocurrent, saturation_current, resistance_series, resistance_shunt, nNsVth, method='brentq')[source]

Given the single diode equation coefficients, calculates the maximum power point (MPP).

Parameters

  • photocurrent (numeric) – photo-generated current [A]

  • saturation_current (numeric) – diode reverse saturation current [A]

  • resistance_series (numeric) – series resitance [ohms]

  • resistance_shunt (numeric) – shunt resitance [ohms]

  • nNsVth (numeric) – product of thermal voltage Vth [V], diode ideality factor n, and number of serices cells Ns

  • method (str) – either 'newton' or 'brentq'

Returns

OrderedDict or pandas.Datafrane – (i_mp, v_mp, p_mp)

Notes

Use this function when you only want to find the maximum power point. Use singlediode() when you need to find additional points on the IV curve. This function uses Brent’s method by default because it is guaranteed to converge.