Hey everyone! I'm facing an issue with my Deye 5k-G03 on-grid inverter. My grid voltage usually sits at 230V, but when I connect my solar panels (6 Topcon Waree panels with a max voltage of 280V), the inverter increases the grid voltage to around 260-270V. I'm really concerned about this behavior and would love to know what potential solutions there might be. Has anyone else encountered this issue?
3 Answers
Where are you located? That’s crucial for checking grid standards. I feel like if your inverter is jacking up the voltage that much, there might be some serious resistance issues upstream affecting the system. A pro should definitely check this out—it’s not something to mess with on your own!
Something definitely doesn’t add up here. You should ideally not be pushing voltage that high, and your inverter should prevent it from happening. Maybe you’re encountering a measurement error? Can you share how you’re tracking your voltage and what your system setup looks like?
I measured the grid voltage with the solar inverter off—it was 230V. When I turned it on, it shot up to 260-265V. Here are my inverter settings I took a screenshot of.
Wow, that's quite the voltage spike! It sounds like a serious power issue, and yes, it can potentially damage equipment on your grid if it’s that high. Typically, something like that shouldn't happen unless your solar output is over 10,000 kWp! It might be worth looking deeper into your setup or getting professional advice on this.
Definitely seems like something’s off; couldn't imagine a system handling that kind of voltage increase without issues.
I live in India and I’ve got the Deye inverter set up with 6 Topcon panels. Do you think that could be causing it?