Engineering Services & Technical Solutions

Comprehensive engineering design, computational simulations, and field commissioning for utility-scale solar PV, battery energy storage systems (BESS), medium/high-voltage substations, and industrial SCADA automation.

Utility-Scale & Commercial Solar PV Design

Turnkey solar engineering packages maximizing energy yield, mitigating 3D shading losses, and delivering bankable simulation reports for utility and industrial projects.

Key Engineering Deliverables

  • PVsyst 3D Shading Simulation, Horizon & Albedo Modeling
  • Detailed Single-Line Diagrams (SLD), 3-Line Diagrams & Schematics
  • Optimal DC/AC Inverter Sizing Ratio (ILR) & String Layouts
  • DC & AC Cable Schedules, Voltage Drop & Short Circuit Calculations
  • Earthing Grid, Surge Protection & Lightning Risk Assessment
  • Comprehensive Bill of Quantities (BOQ) & Equipment Specifications
Tools:
PVsyst 7.x AutoCAD Electrical SketchUp 3D HelioScope
Standards:
IEC 62446 IEC 61724 BNBC Electrical
Request Solar Proposal

Battery Energy Storage Systems (BESS)

Resilient storage engineering for commercial peak shaving, demand management, frequency regulation, and seamless solar-plus-storage hybrid microgrids.

Key Engineering Deliverables

  • Capacity (MWh/MW), C-Rate & Chemistry (LFP/NMC) Selection
  • Peak-Shaving, Time-of-Use (TOU) Arbitrage & Load Duration Profiling
  • Bi-directional PCS Inverter & DC-DC Converter Interconnection
  • Battery Management System (BMS) & Energy Management (EMS) Interfaces
  • Containerized Thermal Conditioning & HVAC Heat Load Analysis
  • Islanding Protection, Synchronization & Black-Start Philosophy
Tools:
MATLAB / Simulink HOMER Pro ETAP BESS
Standards:
IEEE 2030.2.1 NFPA 855 UL 9540
Inquire About BESS

11kV / 33kV Substation & Switchgear Engineering

Complete electrical engineering from primary power intake to secondary distribution, ensuring high power quality, low losses, and robust protection coordination.

Key Engineering Deliverables

  • Substation General Layout (GA), Section Elevations & Trench Details
  • CT/PT Sizing, Instrument Transformer Burden & Accuracy Verification
  • Overcurrent (50/51), Earth Fault (50N/51N) & Differential Relay Protection
  • Power Transformer Impedance, Loss Calculations & Oil Handling Spec
  • Indoor & Outdoor HT/LT Switchgear Busbar Sizing & Temperature Rise
  • Earth Grid Soil Resistivity Modeling, Step & Touch Potential Safety
Tools:
ETAP AutoCAD Electrical DIgSILENT PowerFactory
Standards:
IEC 61936-1 IEEE 80 IEC 62271
Request Substation Scope

Industrial Automation, PLC & SCADA Integration

Robust control architectures and distributed monitoring systems for automated industrial facilities, LPG bottling plants, and smart power infrastructure.

Key Engineering Deliverables

  • Control Architecture Topology, Network Diagrams & I/O Assignment Lists
  • PLC Ladder Logic, Function Block (FBD) & Structured Text Programming
  • HMI Screen Design, Alarm Management & Real-Time Trend Dashboards
  • Field Instrumentation Specification (Transmitters, RTDs, Flowmeters)
  • SCADA Historian Integration with Modbus RTU/TCP & Industrial Ethernet
  • Factory Acceptance Testing (FAT) & Site Commissioning Protocol (SAT)
Tools:
Siemens TIA Portal Allen Bradley RSLogix Wonderware SCADA
Standards:
IEC 61131-3 ISA-88 / ISA-95 NFPA 79
Consult Automation Team

Power System Studies & Transient Analysis

Computational electrical modeling in ETAP to predict fault currents, optimize power factor, minimize voltage drops, and protect personnel from arc flash hazards.

Key Engineering Deliverables

  • Full Facility Network Digital Twin Modeling in ETAP
  • Load Flow Analysis, Bus Voltage Profiles & Real/Reactive Power Losses
  • Symmetrical & Unsymmetrical Short Circuit Analysis (IEC 60909 / IEEE 141)
  • Time-Current Characteristic (TCC) Curves & Relay Protection Coordination
  • Arc Flash Risk Assessment, Incident Energy Levels & PPE Category Labeling
  • Motor Acceleration Studies & Starting Voltage Dip Mitigations
Tools:
ETAP 20.x EasyPower DIgSILENT
Standards:
IEEE 1584-2018 NFPA 70E IEC 60909
Request System Study

Energy Auditing, Power Quality & Due Diligence

Detailed field diagnostic measurements, infrared thermography, and technical due diligence reports designed to reduce electricity costs and eliminate electrical hazards.

Key Engineering Deliverables

  • Facility Energy Balance & Specific Energy Consumption (SEC) Benchmarking
  • Comprehensive Power Quality Logging (Voltage Sag, Swell, Unbalance & THD)
  • Infrared Thermographic Inspection for High-Resistance Hotspots
  • Transformer & Induction Motor Efficiency & Loading Analysis
  • Techno-Economic Feasibility with Simple Payback, NPV & IRR Metrics
  • Prioritized Energy Conservation Measures (ECMs) & Execution Roadmap
Tools:
Fluke 435-II Power Analyzer FLIR Thermal Imager Extech Lux Meter
Standards:
ISO 50002 ASHRAE Level II SREDA Guidelines
Request Energy Audit
EXECUTION LIFECYCLE

The Engineering Delivery Pipeline

A rigorous 4-phase technical workflow designed to guarantee precision, regulatory approval, and fault-free commissioning.

PHASE // 01

Reconnaissance & Feasibility

Site geotechnical surveys, solar irradiance/load logging, existing network single-line auditing, and preliminary techno-commercial viability reports.

Deliverable: Feasibility Study & Concept Note
PHASE // 02

Simulation & Detailed Design

Full-scale PVsyst shading models, ETAP short circuit/load flow simulations, AutoCAD electrical schematics, and equipment sizing calculations.

Deliverable: Detailed Engineering Drawing Package
PHASE // 03

BOQ & Procurement Vetting

Comprehensive Bill of Quantities (BOQ), technical equipment tender specifications, vendor bid evaluation, and compliance verification against IEC/IEEE codes.

Deliverable: Bankable BOQ & Equipment Datasheets
PHASE // 04

Testing, Commissioning & Handover

On-site Factory/Site Acceptance Testing (FAT/SAT), relay secondary injection testing, energization supervision, SCADA telemetry validation, and As-Built drawings.

Deliverable: Commissioning Dossier & As-Built Pack
QUALITY GUARANTEE

Engineered to Rigorous International Codes

Every single drawing, calculation sheet, and simulation adheres strictly to recognized international engineering bodies and local statutory regulations.

IEEE 1547 / 80 / 242
IEC 62446 / 61936
NFPA 58 / 855 Clean Energy
BNBC Bangladesh National Code
ISO 50002 Energy Auditing
SREDA Renewable Guidelines
DIRECT TRANSMISSION

Initiate a Technical Consultation

Whether you need a full turnkey solar PV design, an ETAP power system study, a BESS microgrid sizing, or industrial PLC automation, discuss your project requirements directly with Engr. Didar Mia.

Official Engineering Email didarmia.dhm@gmail.com
Direct Line / WhatsApp +88 01937 092424
Operational Base Dhaka, Bangladesh
Want to review documented past commissions? Explore Engineering Repository

Technical Inquiry / RFP