Parallel wiring
Series wiring and Parallel wiring
Interconnect only photovoltaic modules of the same type and power.
Voltages are additive when modules are connected directly in series, and modules currents are additive when
modules are connected directly in parallel.
Make sure that the maximum system voltage is not surpassed when the modules are connected in series. Take
into account the effects of temperature variation on the power and voltage of the modules.
Else, if you connect the modules in parallel, make sure that each line contains the same number of photovoltaic
modules.
Under normal conditions, a photovoltaic module is likely to experience conditions that produce more current
and/or voltage that reported at the standard test conditions. The requirements of the National Electrical Code
(NEC) in article 690 shall be followed to address these increased outputs. In installations not under the
requirements of the NEC, the values of ISC and VOC marked on this module should be multiplied by a factor of
1.25 when determining component voltage ratings, conductor ampacities, overcurrent device rating and size of
controls connected to the PV output.
