From string-level monitoring to remote circuit breaker operation — delivering comprehensive plant visibility and operational control.
KIK Lanka is proud to have delivered the complete SCADA and automation solution for the Sumathi Energy 5 MW Solar Power Plant in Wewilla, Sri Lanka, with an installed DC capacity of 6.4 MWp.
Built on Schneider Electric EcoStruxure™ Power Operation and Modicon M221 PLCs, the solution integrates electrical system monitoring, inverter and string-level telemetry, environmental data, and remote switching operations into a unified SCADA platform.
The solution provides comprehensive plant visibility and operational capabilities through the following key features:
🔹 Comprehensive Electrical System Visualization
An integrated Single-Line Diagram (SLD) providing end-to-end visibility of the 33 kV switchyard, ring main units (RMUs), step-up transformers, and low-voltage AC distribution systems.
🔹 Inverter & String-Level Monitoring
Detailed operational visibility across all 45 Huawei string inverters, including available string-level current measurements, inverter operating parameters, DC-side measurements, temperatures, and alarm diagnostics. This granular visibility supports the identification of underperforming strings and facilitates faster fault diagnosis and troubleshooting.
🔹 Remote Circuit Breaker Monitoring & Control
SCADA-based monitoring and remote operation of circuit breakers directly from the central dashboard. This enables operators to supervise switching operations, monitor breaker status, and manage plant electrical systems through the integrated control interface, subject to the implemented interlocks and control permissions.
🔹 Power Metering & Grid Monitoring
Real-time monitoring of electrical parameters through multifunction power meters, including voltage, current, active and reactive power, power factor, and total harmonic distortion (THD), where supported by the connected metering devices.
🔹 Integrated Weather Monitoring
Integration of dual weather stations to monitor solar irradiance, module temperatures, and other available environmental parameters, providing essential data for correlating environmental conditions with plant generation and performance.
🔹 Centralized Plant Supervision & Performance Analytics
A unified SCADA environment integrating electrical infrastructure, inverter and string-level data, weather station measurements, and alarm management. Real-time performance analytics include Performance Ratio (PR), Plant Capacity Utilization Factor (CUF) and Plant Downtime, providing valuable insights into generation efficiency, plant performance, and energy production.
This project marks an important milestone for KIK Lanka, demonstrating our capabilities in delivering end-to-end solar SCADA and industrial automation solutions — from PLC programming and system integration to advanced SCADA visualization, string-level monitoring, remote electrical control, and plant performance analytics.
A special appreciation to the KIK Automation team and everyone involved in delivering this project.
KIK Lanka — Engineering smarter, more connected, and more reliable energy systems.
