Automation engineering covers the full PLC and SCADA stack. Our programmers work in Siemens TIA Portal, Allen-Bradley Studio 5000, Schneider EcoStruxure (Unity), and Mitsubishi GX Works as native environments — not as second languages. SCADA development sits on Ignition by Inductive Automation, AVEVA System Platform, and Siemens WinCC depending on the customer's existing stack. HMI design follows ISA-101 high-performance guidelines: muted backgrounds, alarm-only colour, and screens that an operator can read at a glance after a twelve-hour shift, not screens that demo well in a sales meeting.

Electrical engineering is delivered through our in-house panel shop. MCC and PCC panels are designed in EPLAN, fabricated to PUIL 2011 and IEC 60439-1 standards, and routinely include smart metering and condition monitoring integrated at the panel level — not bolted on afterwards. Every project passes formal arc-flash study, insulation resistance testing, and thermographic inspection before energization. The documentation pack handed to the customer at handover includes single-line diagrams, schematic wiring, panel general-arrangement drawings, test reports, and the SLO documentation the PLN inspector will ask to see.

Renewable energy is delivered across the size spectrum that makes commercial sense in Indonesia: rooftop PLTS systems up to 1 MW and ground-mounted plants up to 5 MW, with hybrid PLTS plus PLTB plus battery storage configurations available for off-grid and weak-grid sites. We handle the full lifecycle: structural design and shading study, inverter and module selection, AC and DC system design, civil interface coordination, PLN permitting (SLO, commissioning documents, net-metering application), and post-commissioning performance monitoring through SURGE Energy Mapping.

Water treatment engineering covers WTP and WWTP process design, equipment selection, mechanical and electrical interfaces, and the KLHK SPARING integration that has become non-negotiable for compliant operators. Our process engineers size dosing, settle, filter, and biological treatment stages from first principles; our automation engineers wire the resulting equipment into a SPARING-ready data layer that publishes pH, COD, TSS, NH3-N, and flow at the regulated cadence. Operator training and SOP packages ship with every commissioning, because a treatment plant that operators do not understand will fail within a year regardless of how well it was engineered.

Cross-cutting across all four disciplines is IIoT integration. Every panel we fabricate, every solar inverter we commission, every water sensor we install, and every PLC we program connects to SURGE — so the customer sees a unified operational picture from day one, not after a separate IoT project two years later. This is not an upsell; it is the way SURIOTA engineers any project, because the future-proofing it provides costs little and pays off across the entire equipment lifecycle.