Fraction for electrical effect

What it is

A multiplier on the part of the electrical shading loss that exceeds the light the shadow covers. At 1 the whole strip loses its direct light when a shadow reaches it. Smaller values describe layouts where part of the strip keeps producing.

Typical values and how to get it

1 unless a measured layout justifies less. If not given: 1: the electrical shading counts in full.

How it is applied

$$G_{el} = G_{\text{eff}} - f_{\text{el}}\,\max\!\left(0,\ F_{\text{elec}} - F_{\text{sh}}\right) G_{\text{b}}$$

where

Symbol	Meaning	Unit
$G_{el}$	the effective irradiance the module model receives	W/m²
$G_{\text{eff}}$	the effective irradiance on the plane after the linear shading	W/m²
$f_{\text{el}}$	this input	—
$F_{\text{elec}}$	the share of the collector width the electrical model counts as lost, set by the strips the shadow reaches	—
$F_{\text{sh}}$	the shaded share of the collector width, the linear loss	—
$G_{\text{b}}$	the direct light on the plane after the horizon, the incidence-angle loss and soiling	W/m²

API

array.fraction_for_electrical

Symbols follow the symbol registry.