Is there a simple way to weather adjust data (roughly) to be used for 1,000s of Residential assets clustered in a very small Region? We have monthly performance reviews and the same question comes up? Why was last year batter than this year? Etc… and the answer to all these questions is likely a column with some basic weather adjustment/month. Wanted to get thoughts as this would change my life! Cheers!

Hi everyone, I’m glad I had the chance to meet Calin in person, and through his invitation I joined this community. I’m excited to learn more about Data Science as a complementary skill for solar O&M and operations. My background is in DevOps and automation, and my goal is to gradually add data analysis capabilities. I’m especially interested in data modeling, PV performance calculations, and practical analytics used in real plants. If you have recommended courses, learning paths, or hands-on ideas, I would really appreciate your input. Thanks a lot, Daniel

I’d like to open a practical discussion focused on what truly reduces LCOE over the lifetime of a solar asset. No buzzwords. No glossy presentations. Just the operational decisions that consistently make or break performance. The logic is simple: the more optimized your production costs are, the stronger your IRR. Revenue strategy and trading merit a separate topic. Here, I’m interested specifically in the operational layer: Where do we gain the most efficiency? Where do we silently lose it? And maybe the more uncomfortable truths: Where do EPC shortcuts cost you for the next 25 years? What does “bankable performance ratio” even mean in practice? Which suppliers survive the warranty period and which… don't. I’m looking to gather what actually works in the field, across regions, climates, EPC models, and asset sizes. So, from your experience: What are the concrete practices that consistently reduce LCOE?And where do operators commonly leave money on the table? Let’s go real :)

Hello everyone, I think this is a long shot, but does anyone in this group work with DC coupled PV + BESS? We are interested in the PV + BESS design aspect, but also the operations and monitoring. For example: - What tools does the industry use for designing such systems? Is it a siloed process (e.g., PVsyst for PV and maybe an excel spreadsheet for the BESS) or are there any integrated tools out there? - What about the monitoring? Is that still siloed? - Separate KPIs? Thanks, Marios

What would you change about solar industry, if you given the chance?