While solar mod­ules used to have 10–11 A in the past, lat­est inno­va­tions with big­ger wafers pro­duce between 15 and 18 A cur­rent. Many invert­ers in the mar­ket are lim­it­ed to under 15 A (Impp). The Solar­na­tive Pow­er Stick is designed for an MPP cur­rent of up to 20 A by default, mak­ing it com­pat­i­ble with M10 or G12 wafers. What­ev­er type of mod­ules you are plan­ning to install, this micro-invert­er can han­dle them all!

To avoid larg­er mod­ule cur­rents, man­u­fac­tur­ers are design­ing new PV mod­ule lay­outs with the effect that mod­ule volt­ages are ris­ing from 40 to 60 V.  As a con­se­quence, the max­i­mum num­ber of mod­ules in one string drops to 14, due to typ­i­cal string sys­tems’ lim­i­ta­tion to 1.000 V. Many opti­miz­ers and micro-invert­ers are not ready to process the high­er mod­ule volt­age either — but guess what? With up to 67 V, the Solar­na­tive Pow­er Stick is!

While a stronger cur­rent results in high­er ener­gy loss­es on the DC side, the Solar­na­tive Smart Ener­gy Home does not face this prob­lem: con­vert­ing the module’s DC pow­er into AC pow­er right at the source, the sys­tem spares long and lossy DC cables.