Solar PV array simulation

source — no material stream; reports a power_w metric

Governing equations

The exact equations the solver works for a solar pv array — the same math shown in the app's "Theory" panel, not a black box.

$P_{dc}$

DC array power output [W]

$P_{rated}$

nameplate DC capacity at STC [W]

$G$

plane-of-array irradiance [W/m^2]

$G_{stc}$

1000 W/m^2 (STC reference)

$\gamma$

temperature coefficient of power [%/C, negative]

$T_{cell}$

cell temperature [C]

$T_{stc}$

25 C (STC reference)

$f_{derate}$

system-loss derate factor [0-1]

$P_{ac}$

reported AC power [W]

Parameters

rated_power_w [W, DC nameplate at STC], irradiance_w_m2 [W/m^2, plane-of-array]; optional cell_temperature_c [default 25], temp_coeff_pct_per_c [default -0.40], system_derate [0-1, default 0.86]. No material stream — reports power_w.

Example flowsheets that use it