Alerts
4 open · €51.22/day at risk across the fleet
Inverter outage — Inverter 2 shows 0% performance ratio today on a clear, sunny day while peer inverters (1 and 3) both achieved 92% PR under identical conditions. The inverter has been offline for at least 7 consecutive days with zero output, indicating a hard failure rather than a transient fault.
Action: Dispatch a technician to Inverter 2 to inspect for hardware faults, check DC string connectivity, verify AC contactor status, and review inverter error logs. Immediate replacement or repair is warranted given the sustained outage duration. · confidence: high
Inverter outage — Inverter 2 shows 0% performance ratio while identical peer inverters (1 and 3) achieved 92% under the same clear, sunny conditions today. The 7-day trend shows sustained 0% PR, indicating a complete and persistent failure of this inverter unit.
Action: Dispatch technician to Migros Rooftop Zürich to inspect Inverter 2 (Huawei) for hardware failure, DC isolation fault, or AC disconnect status. Check for error codes on the display and verify DC string continuity. · confidence: high
Panel soiling — Inverter 2 shows a sustained PR of 55% over 7 consecutive days on sunny conditions, while peer inverters achieve 92% on the same day and under the same clear sky. This persistent 37-point gap despite clear weather and stable performance across time points is characteristic of soiling accumulation rather than a sudden electrical fault.
Action: Schedule a panel cleaning inspection for Inverter 2's array; prioritize checking for dust, bird droppings, pollen, or other deposits that typically accumulate during dry periods. · confidence: high
Panel soiling — Inverter 2 has consistently underperformed at 55% PR for seven consecutive days while peers (Inverters 1 and 3) achieved 92% PR today under identical clear, sunny conditions. The sustained, flat depression—not a sudden drop—indicates accumulated dirt, dust, or debris on the panels rather than an electrical failure.
Action: Schedule a physical site visit to inspect and clean the panels on Inverter 2's string(s); verify no damage or shading obstruction during inspection. · confidence: high