MOHAMMAD MEHDI SHAFIZADEH
Braunschweig
Summary
Power Systems / Substation Engineer with 10+ years of experience Design and delivering MV/LV distribution systems, 110–10 kV substations, Building Services Technology and grid integration studies across Germany, Armenia, and Iran. Strong expertise in Switchgears, Distribution boards, and primary/secondary design, protection coordination, grounding, and system studies (load flow, short circuit, selectivity) using DIGSILENT , Simaris, Simulink, and AutoCAD Electrical. Proven results include 40% reliability improvement, zero design revisions across 12 substations, and optimized layouts reducing footprint by 15%. Skilled in DIN VDE/IEC-compliant engineering, tender preparation, Field Support and Site Inspection, and multidisciplinary project coordination for utilities, infrastructure, and industrial facilities.
Overview
12
12
years of professional experience
Work History
Technical Building Services Project Engineer
Emagine GmbH
03.2025 - 09.2025
- Designed MV/LV power distribution systems for commercial and Residential buildings including main distribution boards (up to 1200A), sub-distribution boards, and power supply networks in Compliance with Standards(VDE-AR-N 4100,VDE 0603-1, VDE 0100) Building Automation(KNX Solution).
- Performed power system calculations: load analysis, cable sizing per DIN VDE 0276, voltage drop calculations, short circuit analysis, and protection device selectivity using Simaris Design.
- Engineered Technical building equipment(Emergency Lights, Lights, Fire Detection, Sockets, Data Network, Ventilation, ...), PV integration, Metering Concept(VDE-AR-N 4100) , and UPS systems for critical loads
- Created comprehensive electrical documentation: single and three-line diagrams using Hagercad, and Simaris Suite., installation plans, , cable routing using Bricscad and Dscad and equipment specifications and Sizing.
- Provided tender documents and Technical reports.
- Coordinated BIM electrical models using DSCDAD for multi-discipline clash detection and construction coordination
- Coordinated with multiple stakeholders, including contractors and suppliers, to facilitate effective communication and project progress.
- Key Achievement: Delivered and coordinated power distribution designs with optimized protection schemes, and Installation plans for a 130 Apartments building, Conceptualized and Designed for Special Switch boards for Building Automations with KNX Solution.
- (Contract for Energydesign bs GmbH)
Project Manager - MEP & Facility Management
Stadt Braunschweig
03.2024 - 08.2024
- Managed electrical technologies upgrades for Educational buildings valued at +2.2 M€.
- Reviewed and approved electrical designs for compliance with VDE standards, Internal Rules and Safety measures.
- Conducted technical acceptance testing of Fire and Gas alarm Systems, Emergency light systems, Cabling and distribution boards per DIN VDE 0105-100.
- Prepared technical tender specifications for electrical contractors including equipment schedules, performance requirements, and compliance criteria.
- Key Achievement: Delivered acceptance of electrical Design for Martino Katharinenium School after three years of delay, Awarding and coordination with external Companies to complete deficiencies in school Building projects.
Electrical Planner / Designer for Substations
BetonBau Bockenem GmbH
05.2023 - 11.2023
- Engineered Design and Construction of 12 utility-grade 110-10kV substations for BS Energy, Avacon, and Deutsche Bahn totaling €2M project value, ensuring full compliance with DIN VDE 0621/0622-71 and IEC standards
- Created detailed electrical designs using AutoCAD Electrical and Revit BIM: single-line diagrams, three phase internal Circuits, control circuits, Communication Topology, terminal diagrams, cable schedules, and main and Auxiliary equipment layouts.
- Developed grounding systems per DIN VDE 0141, calculating earth electrode resistance and step/touch potentials for personnel safety.
- Optimized substation layouts reducing footprint by 15% and construction time while maintaining accessibility for operation and maintenance.
- Implemented SAP-based project management and Enaio documentation system improving design traceability and reducing coordination errors by 30%.
- Evaluated and selected equipment vendors, ensuring alignment with project specifications and cost requirements.
- Key Achievement: Zero post-commissioning design modifications across all 12 substations, demonstrating design accuracy and standards compliance.
Head of Electrical Planning & Execution
Fredex Services CJSC
05.2020 - 06.2022
- Designed complete MV-LV electrical infrastructure for +3M$ Expocore Hotel project and one Penthouse including 10kV/400V substation (630kVA transformer), main and sub-distribution boards, Earthing System, power distribution network.
- Managed and Supervised installation and commissioning of complete electrical systems in Building Technology, lead the team of 6-10 technicians, conducting performance testing and system integration.
- Coordination with external Companies, Controlling project phases, And Approving their works according to needs and contracts.
- Engineered emergency power system with 500kVA diesel generator, UPS , automatic transfer switch, and parallel operation capability ensuring.
- Integrated 100kW rooftop PV system with grid-tied inverters, designing DC/AC distribution, protection systems, and energy management for optimal self-consumption.
- Performed comprehensive load calculations and cable sizing for 2500m² mixed-use facility, optimizing conductor cross-sections for voltage drop.
- Implemented power factor correction achieving 0.95 PF and reducing reactive power charges by 5%, with capacitor bank automatic control.
- Designed motor control centers (MCC) for HVAC systems, and Water systems including VFD integration, soft starters, and thermal protection per IEC 60947.
- Assisted with day-to-day operations, working efficiently and productively with all team members.
- Developed detailed project schedules and resource allocation plans, optimizing team performance and project delivery timelines.
- Key Achievement: Delivered fully functional MV and LV Substation and Distribution and building electrical infrastructure with 10% energy savings through optimized design, leading the Project from Planing Permission till Commissioning, zero safety incidents during 24-month project.
Project Engineer - Fire & Gas Alarm Systems
Pars Tadbir Hefaze Dena
05.2018 - 02.2020
- Designed and implemented of power supply systems, and Cabling network for facility-wide fire alarm and gas detection network covering 500,000m² (Persian Gulf Complex/Shiraz)
- Engineered 230AC/24VDC power distribution with redundant power supplies, battery backup systems, and voltage drop calculations for reliable sensor operation.
- Created electrical distribution and DATA network for monitoring panels, control units, and field devices with proper cable shielding and EMC compliance.
- Coordinated of Project Phases with other specialized Department to reduce Collision in execution of the network.
- Optimized wiring diagram plans according to the project restrictions.
- Responsible engineer in acceptance procedures of the Project phases with the Client and official Authorities.
- Commissioning, Delivering of documents, and training the specialized department of the client for operation and maintenance of the system.
- Key Achievements: Designed and Implemented of the first F&G system for a Large scale Complex in Iran. engineered over 70% of the whole system. 100% system reliability on the commissioning phase.
Plant/Field Electrical Engineer
Shiraz Electrod Co. (WIEM)
04.2017 - 04.2018
- Upgraded industrial two MV/LV power distribution system including 20kV/400V substation modernization with new switchgear and protection relays caused 10% more Energy efficiency.
- Designed and installed motor control centers (MCC) for welding production machinery with VFDs, soft starters, and comprehensive protection systems based on IEC 61439 , IEC TS 60034 . resulted in 80% reduction in operation interruptions and 30% production rate enhancement.
- Renovated general electrical infrastructure, cable trays, sub-distribution boards.
- Optimized power system reliability through preventive maintenance program and protection system upgrades, and modernizing metering devices resulted in reducing downtime by 40%.
- Key Achievement: Industrial power system modernization delivering 40% downtime reduction and 30% capacity increase through improved electrical reliability, Modernization of 60% Power Supplies and Control and Protection Cabinets
Plant/Field Electrical Engineer
Ramooz Aquaculture Co.
12.2015 - 03.2017
- Improved and Designed complete MV/LV electrical system for aquaculture facility including 20kV distribution, two parallel 800 kVA transformer, main distribution board (1000A), and sub-distribution network.
- Engineered emergency power generation with 800kVA diesel generator, automatic transfer switch (ATS), and load shedding control for critical equipment prioritization.
- Installed UPS systems and Capacitor banks for critical monitoring and control equipment ensuring uninterrupted operation during power transfer.
- Designed and Implementation and commissioning of motor control systems for high-power pumps (up to 110kW) with VFD and EI & C integration for energy-efficient and Load Control operations.
- Implemented comprehensive grounding system with multiple earth electrodes ensuring
- Preventive test and Maintenance plans to avoid operation interruptions, resulting in 30% reduction in downtimes.
- Leading and teaching the team of two electricians for reliability in night shifts.
- Designed and installed engineered lights and instrumented ventilation system in production facilities.
- Developed load management strategy using automatic load control reducing peak demand by 12% and optimizing generator runtime.
- Designed and implemented General Electrical Requirements for Factory and Staff Accommodations(lights, Sockets, Data Network and AC Systems).
- Key Achievement: 80% power system reliability improvements in over 15-month commissioning and maintenance period, critical for continuous aquaculture operations.
Network Analyst
Moshiran Sanate Nirooye Pars
11.2013 - 01.2015
- Modeled 7.7MW combined-cycle power plant in Digsilent PowerFactory including generator model (synchronous machine parameters), transformer (6.3kV/132kV), and transmission line connection
- Performed comprehensive grid integration studies: load flow analysis, voltage profile assessment, reactive power requirements, and steady-state stability analysis
- Conducted fault analysis calculating three-phase and single-phase short circuit currents at all voltage levels per IEC 60909, verifying equipment ratings.
- Analyzed transient stability for various fault scenarios and generator trip conditions, verifying system remains stable per grid code requirements
- Prepared technical reports and documentation for transmission system operator (TSO) and distribution system operator (DSO) supporting grid connection approval
- Key Achievement: Successful grid integration of 7.7MW generation capacity with full compliance to national grid codes, first practical Digsilent application in real power plant project.
Education
Bachelor of Science - Electrical Engineering - Power Systems
01.2011
- Specialized Coursework:
- Power System Analysis (Load Flow, Fault Analysis, Stability)
- Electrical Protection Systems & Relay Coordination
- Power Transformers & Electrical Machines
- Substation Design & HV Switchgear Engineering
- Transmission & Distribution System Design
- Power Plant Engineering & Grid Integration
- Electrical Safety Standards & Grounding Systems
- Power System Transients & Power Quality
Skills
Power system Conception, Design, Implementation and Commissioning
SOFTWARE SKILLS
Circuit diagram design : Hagercad , Autocad
Simulation and calculation: Digsilent, Simulink, Simaris
BIM: Revit
Documentation: Ms office, SAP, Enaio
Tender: Orca
CORE POWER SYSTEMS EXPERTISE
- Power Distribution & Substation Design
- MV/LV Distribution Systems Design (110kV-400V)
- Substation Engineering: 110-10kV Switchgear, Transformers (up to 2.5MVA), Protection Systems
- Main & Sub-Distribution Board Design, Busbar Calculations
- Building Services Technology ( from General equipment to Buildings Automation)
- Grounding System Design per DIN VDE 0141
- Cable Sizing & Routing (HV/MV/LV per IEC 60364, VDE 0276)
- Power System Analysis
- Load Flow Analysis, Voltage Drop Calculations
- Short Circuit Calculations (IEC 60909, VDE 0102)
- Protection Coordination & Selectivity Studies
- Power Quality Analysis, Harmonic Studies
- Grid Connection Studies, Stability Analysis
- Energy Cost & Efficiency Optimization
- Standards & Technical Regulations
- DIN VDE 0100-101, 0105, 0621, 0622-71, 0141 (Earthing)
- IEC 61439 (Switchgear Assemblies), IEC 60364 (LV Installations)
- IEC 60909 (Short Circuit Calculations), EN 50110 (Electrical Safety)
- Grid Codes: VDE-AR-N 4100/4110 (LV/MV Grid Connection)
- Power Systems Software & Tools
- Analysis: DIGSILENT PowerFactory (Load Flow, Short Circuit, Protection), Simaris Seminars, MATLAB/Simulink
- Design: EPLAN Electric P8, AutoCAD Electrical, HagerCAD
- Calculation: Excel-based Calculations (Cable Sizing, Load Analysis, Transformer Selection)
- Modeling: Revit (BIM for Electrical), PVSyst (Solar Integration)
- MV Switchgear: ABB, Siemens, Schneider Electric (Ring Main Units, Circuit Breakers)
- Power Transformers: Oil & Dry-Type (up to 2.5MVA)
- Protection Relays: Overcurrent, Differential, Distance Protection
- Motor Control Centers (MCC), Variable Frequency Drives (VFD)
- Emergency Power: Diesel Generators, UPS Systems
- Inverter Sizing
- Renewable Integration: PV Systems, Grid-Tied or off-Grid Inverters
- Project Engineering Capabilities
- Technical Specification Development, Bill of Quantities (BoQ)
- Tender Preparation, Evaluation and Contractor Technical Coordination.
- Site Supervision, Commissioning, Performance Testing.
- As-Built Documentation, Operation & Maintenance Manuals
- Quality Assurance per DIN EN ISO 9001
LANGUAGES
English
Bilingual or Proficient (C2)
German
Upper intermediate (B2)
KEY POWER SYSTEMS PROJECTS
Regional Utility Substations Portfolio | +2M€ | 2023, 12 x 110-10kV substations for BS Energy, Avacon, Deutsche Bahn, Switchgear design, transformer integration, protection coordination, grounding systems,, ExpoHotel MV-LV Substation & Distribution | +3M€ | 2020-2022, 10kV/400V substation, emergency generator, UPS, 100kW PV integration, Complete power distribution network, motor control centers, power factor correction,, 7.7MW Power Plant Grid Integration | 2013-2015, DIGSILENT PowerFactory modeling, grid studies, protection design, Load flow, fault analysis, stability studies, commissioning support, Industrial Power System Modernization | 2017-2018, MV/LV substation upgrade, motor control centers, protection coordination, 40% reliability improvement, 10% capacity increase, Aquaculture Facility Electrical Infrastructure | 2015-2017, Complete MV/LV design, emergency power, motor control systems, 99.5% availability, 12% demand reduction through load management
Timeline
Technical Building Services Project Engineer - Emagine GmbH
03.2025 - 09.2025
Project Manager - MEP & Facility Management - Stadt Braunschweig
03.2024 - 08.2024
Electrical Planner / Designer for Substations - BetonBau Bockenem GmbH
05.2023 - 11.2023
Head of Electrical Planning & Execution - Fredex Services CJSC
05.2020 - 06.2022
Project Engineer - Fire & Gas Alarm Systems - Pars Tadbir Hefaze Dena
05.2018 - 02.2020
Plant/Field Electrical Engineer - Shiraz Electrod Co. (WIEM)
04.2017 - 04.2018
Plant/Field Electrical Engineer - Ramooz Aquaculture Co.
12.2015 - 03.2017
Network Analyst - Moshiran Sanate Nirooye Pars
11.2013 - 01.2015
Islamic Azad University of Iran - Bachelor of Science, Electrical Engineering - Power Systems