pvlib.pvsystem.pvwatts_losses¶
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pvlib.pvsystem.
pvwatts_losses
(soiling=2, shading=3, snow=0, mismatch=2, wiring=2, connections=0.5, lid=1.5, nameplate_rating=1, age=0, availability=3)[source]¶ Implements NREL’s PVWatts system loss model [R28]:
\[L_{total}(\%) = 100 [ 1 - \Pi_i ( 1 - \frac{L_i}{100} ) ]\]All parameters must be in units of %. Parameters may be array-like, though all array sizes must match.
Parameters: soiling: numeric
shading: numeric
snow: numeric
mismatch: numeric
wiring: numeric
connections: numeric
lid: numeric
Light induced degradation
nameplate_rating: numeric
age: numeric
availability: numeric
Returns: losses: numeric
System losses in units of %.
References
[R28] (1, 2) A. P. Dobos, “PVWatts Version 5 Manual” http://pvwatts.nrel.gov/downloads/pvwattsv5.pdf (2014).