Multi-GWp Industrial IoT Monitoring Platform

The Challenge

The operator managed assets from 8+ inverter brands (Huawei, Sungrow, Growatt, GoodWe, et al.), each with proprietary APIs and undocumented Modbus dialects. They needed a single platform that ingests, normalizes, correlates string-level + module-level + weather data in real time, and surfaces under-performing assets fast enough for the O&M team to act before revenue loss compounded.

The Solution

End-to-end IoT platform: edge data collectors deployed on-site, time-series ingestion at multi-GWp scale, multi-tenant cloud platform with row-level access for asset owners / O&M / regulators, and an operations dashboard with auto-generated work orders that both humans and cleaning robots can action.

How We Built It

• 1Edge collectors: C/Lua firmware on embedded modules, Modbus RTU/TCP + IEC 60870-5-104 + DL/T 645/698, Cat.1 uplink
• 2EMS controllers for battery-storage sites: local logic with cloud orchestration; deterministic failure handling
• 3Backend: Java + Python ingestion microservices, Kafka for event flow, TimescaleDB / InfluxDB for time-series, S3-compatible blob
• 4Multi-tenant access control: asset owners, O&M crews, and regulators each see their slice with audit logs
• 5Native API connectors for 8 major inverter vendors — saved years of vendor-by-vendor reverse engineering
• 6React + ECharts operations dashboard, mobile-first for field crews
• 7Hybrid cloud: critical control loops on-prem PoP, analytics in the cloud

Tech Stack