https://www.linkedin.com/posts/andreas-iliou-ab921b10_milk-production-shower-cows-stray-currents-activity-7296454365609930752-40Tt?utm_source=share&utm_medium=member_android&rcm=ACoAAAIq-W0B9doX5ZyoUdW0LH1OIL-04-rauPY All around the World ,PV can due to wrong Earthing or No Earthing at All deharmonize animals and stress can be enhanced ..... Tickling Drinking Showering Milking

https://youtu.be/lDm00Ww6qE4?si=BcPzdIm5RgjQSal9 The ongoing problem of mine in "unenergized Transformers" but checking Earthloops already 60- 3000 mA can be measured. Overheadlines and buried kV Lines can "emit" high leakage or stray currents into your parallel aligned substructure from modules or Earthing wires .... It can distract Mppt Controller and startup of Inverters especially during wet/rainy conditions

Let me tell you about one of my most humbling moments in solar O&M. Back in 2021, I was managing an O&M service while also doing monitoring. During routine preventive maintenance, one of my technicians accidentally left 5 combiner boxes disconnected. Honestly? I get why it happened. Those boxes had the weirdest closing system, no LED indicators, and all the cables were buried. Easy mistake to make. But here's where it gets worse... The tech didn't check his work when he finished. I didn't verify it from the control room. We didn't even catch it in our end-of-month performance review. Two. Full. Months. It was only when I finally dug into the PR and energy performance index trends that I saw something was off. We pulled up the heat map and there it was—5 combiner boxes just sitting there, disconnected. Cue the emergency truck dispatch and some very awkward conversations. Here's what I learned (so you don't have to learn it the hard way): The real issue wasn't the technician's mistake. It was our process—or lack thereof. No combiner box monitoring. No systematic inverter comparison after maintenance. No immediate performance spot-checks. We got lucky. The PR impact was minimal. But that wake-up call changed everything about how we approach maintenance verification. Today, these mistakes don't happen anymore. Not because we became perfect, but because we built systems that catch human error before it costs time and money. What's your "oops, we missed that" moment? Share below—we're all learning together.

In utility-scale solar operations, the choice between centralized and string inverters is no longer just an engineering preference but an O&M strategy with major implications for reliability, downtime, and long-term performance. Centralized inverters give you high capacity, simplified AC integration, and lower upfront costs, which is attractive for large, uniform terrains. But they also create a major operational risk: when a central unit trips, an entire block can drop off the grid at once, leading to large energy losses and requiring heavy-equipment support for repairs. String inverters flip the equation. Their distributed architecture improves fault isolation, reduces downtime, and gives operators granular visibility into module- or string-level performance. In plants where shading, soiling patterns, or uneven module ageing are challenges, string inverters often deliver better energy yield and faster troubleshooting. Still, they come with more components, more distributed maintenance, and potentially higher replacement frequency. So how do we decide? The answer often lies in site conditions, workforce capability, reliability targets, and O&M philosophy. Centralized systems may suit teams with strong heavy-equipment maintenance capacity and stable grid conditions, while string architectures shine where uptime, diagnostics, and agile maintenance matter most. Some developers now use hybrid designs, combining the robustness of centralized units with the intelligence of string-level monitoring. Do string inverters give you better diagnostics, or do their numbers overwhelm your maintenance plan? which architecture has proven more reliable? and If you had to design a new plant today, which would you choose and why?

Live time together is important to grow as a community. Let's pick a time slot that works Every two weeks, I'll be hosting a live event where: 1. You will get updates on the progress and future of the community 2. Ask questions about the community, how some things work 3. Bring up your own topics from your day to day.