PV Inverter wiring question

Piwoslaw · 06-25-24, 08:24 AM

Our 2.7kW PV system has 8 panels connected in series to a 3kW single-phase SolarEdge inverter. The existing panels are registered with the inverter during set up, so I can see each panel's output in real time in the SolarEdge app.

Due to their orientation and dropping efficiency, the panels' production never reaches more than ~2.2kW, so I'd like to add an extra 1-2 panels to boost output, but without registering them with the inverter for 2 reasons:

I don't want to hire a SE specialist for the job,
Changing my setup would force me to change my utility's tarif to one which is much less beneficial for me.

Question: If I just splice in the extra PVs in series, without setting anything up in the inverter, what will happen? Will the inverter just spit out the extra power, or will it refuse to work with the additional panels?
Any ideas?

06-25-24, 08:24 AM	#1
Piwoslaw Super Moderator Join Date: May 2009 Location: Warsaw, Poland Posts: 963 Thanks: 188 Thanked 110 Times in 86 Posts	PV Inverter wiring question Our 2.7kW PV system has 8 panels connected in series to a 3kW single-phase SolarEdge inverter. The existing panels are registered with the inverter during set up, so I can see each panel's output in real time in the SolarEdge app. Due to their orientation and dropping efficiency, the panels' production never reaches more than ~2.2kW, so I'd like to add an extra 1-2 panels to boost output, but without registering them with the inverter for 2 reasons: I don't want to hire a SE specialist for the job, Changing my setup would force me to change my utility's tarif to one which is much less beneficial for me. Question: If I just splice in the extra PVs in series, without setting anything up in the inverter, what will happen? Will the inverter just spit out the extra power, or will it refuse to work with the additional panels? Any ideas? __________________ Ecorenovation - the bottomless piggy bank that tries to tame the energy hog.