Maaz Ullah

Maintenance Engineer (Site Incharge)

• Job Details:Maintained 25MW substation supplying power from PV, BESS, and diesel generators. Prepared method statements and KPIs. Led overall site management, SCADA maintenance, reporting logs, and site documentation. Performed load forecasting and estimation to optimize energy planning and system efficiency. Performed routine maintenance and inspections of electrical systems, including PV modules, inverters, LT panels, and associated wiring. Ensured smooth operation and synchronization of PV, BESS, and DG sources. Configured inverter strings and designed secure fiber communication networks for solar PV systems. Troubleshot and resolved electrical faults in PV arrays, inverters, and LT panels to minimize downtime. Performed routine and preventive maintenance of transformers, RMUs, BESS, inverter and LT panels to enhance equipment reliability. Monitored power flow, voltage levels, and load balancing via SCADA systems. Conducted daily visual checks on VCBs, inverters, and weather monitoring systems (WMS) to ensure operational health. Conducted BESS calibration and inspections. Provided technical assistance to site teams for electrical maintenance tasks. Maintained documentation for electrical inspections, fault logs, and maintenance activities. Verified grounding, protection, and compliance with safety standards. Ensured all installed components PV modules, inverters, and panels met quality standards and safety regulations. Commissioned and tested energy storage systems (BESS) for enhanced solar energy integration and utilization. Led efforts to integrate smart grid technologies for real-time monitoring, control, and diagnostics.

Wireline Engineer

• Job Details:Conducted visual and cold commissioning for BESS and medium voltage system (MVS). Diagnosed BESS connection issues, IP configuration, and network troubleshooting. Configured IP settings for BESS, PCS, LC, BSC, and LCP. Monitored system performance and managed feeder distribution using SCADA for real-time control and diagnostics. Monitored and troubleshot real-time BESS & MVS faults via PC, accessing systems through BSC and LC. Maintained active/reactive power regulation and charging discharging via LC. Exported data via GCU to CMU for LC failure scenarios. Managed BESS power on/off procedures and individual cell pack replacement & charging. Inspected battery system for cell balancing, SOC/SOH monitoring, and safety compliance. Performed fire alarm and cooling system testing for thermal management. Commissioned liquid leakage detection and level monitoring of BESS. Performed liquid injection and drainage operations to maintain system efficiency and thermal stability. Adjusted ventilation, condenser, and compressor speed via comm tool through LCP for smooth operation and system efficiency. Commissioned coolant pressure and fire alarm system reset. Verified SPD, SMPS, and grounding system for electrical safety and protection. Tested & commissioned auxiliary transformers (CT, PT, Buchholz relay, insulation testing). Conducted MVS main breaker testing and switchgear reliability assessment. Executed RMU interlocking mechanism and BESS cable termination commissioning. Performed torque inspections to ensure secure electrical connections and system reliability.

Electrical Engineer

• Job Details:Supervised installation, testing, and commissioning of electrical systems including module, strings, inverters, and LV/MV cables. Managed cable routing, termination, and insulation resistance testing to ensure quality and reduce energy losses. Prepared and reviewed method statements, ITPs, redline drawings, and as-built documentation for QA/QC and project handover. Configured inverters, data loggers, gateways, and network communications (Modbus RTU/TCP, RS485) for real-time SCADA data transmission. Diagnosed and troubleshot faults in inverter systems, communication networks, and monitoring infrastructure. Conducted site inspections and quality checks, ensuring compliance with international standards and safety protocols. Collaborated with multidisciplinary teams to facilitate successful testing, commissioning, and handover. Reviewed and validated single-line diagrams, electrical layouts, and protection schemes per SEC and international standards. Oversaw installation and maintenance of PV skids, LT panels, electrical control panels, power and auxiliary transformers, DBs, ATS, UPS, and ELV systems. Ensured communication setup between PV inverters, combiner boxes, protection relays, and SCADA. Supervised installation and inspection of LV/ELV systems, including fire alarm, BMS, intercom, and lighting. Provided technical guidance on LV/ELV installations and maintenance. Participated in grid interconnection activities including relay settings, coordination studies, and functional testing with utility stakeholders.