Yingli Energy (China) YL255P-29b

Multi-c-Si

254.592 W Pmax

38.7 V Voc

8.88 A Isc

30.6 V Vmp

8.32 A Imp

15.58 % eff.

0.7408 FF

60 cells

IV curves not yet precomputed for this module. Run python manage.py precompute_iv_curves to generate them.

CEC Single-Diode Model Parameters

Parameter	Symbol	Value	Unit
Nameplate (STC)
STC Power	STC	254.592	W
PTC Power	PTC	230.9	W
Open-circuit voltage	V_oc_ref	38.7	V
Short-circuit current	I_sc_ref	8.88	A
Max-power voltage	V_mp_ref	30.6	V
Max-power current	I_mp_ref	8.32	A
Fill factor	FF	0.7408	—
Efficiency (STC)	η	15.58	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.003889	A/°C
Voc temperature coefficient	beta_oc	-0.130419	V/°C
Pmax temperature coefficient	gamma_r	-0.4586	%/°C
NOCT	T_NOCT	44.8	°C
CEC Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.59694	V
Light-generated current (ref)	I_L_ref	8.88905	A
Saturation current (ref)	I_o_ref	—	A
Series resistance	R_s	0.41774	Ω
Shunt resistance (ref)	R_sh_ref	410.034	Ω
Cells in series	N_s	60	—
CEC Adjust factor	Adjust	5.7475	%

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Module Specifications

Technology Multi-c-Si

Bifacial No

BIPV No

Cells in series 60

Module area 1.634 m²

Dimensions 1.65 × 0.99 m

NOCT 44.8 °C

CEC listing date 11/16/2022

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