Open Access

Table 2

Open circuit voltage temperature coefficient of modules.

    m-Si p-Si p-Si aSi:H/μc-Si:H
    VSP50M-12V VSP50P-12V SW50 RMA/D NA-F128GK
Module in STC Voc temperature coefficient [%/°C] −0.34 −0.34 −0.37 −0.3
Module with daily cleaning Voc temperature coefficient [%/°C] −0.3 −0.3 −0.29 −0.27
  Standard error 5.59 e-4 4.06 e-4 5.21 e-4 1.64 e-3
Module without cleaning Voc temperature coefficient [%/°C] −0.24 −0.26 −0.23 −0.2
  Standard error 6.81 e-4 6.5 e-4 6.73 e-4 2.3 e-3

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