Project management · High voltage

Tim Reiz — Project management · Project controls · Supervision

High voltage.Project management.Europe-wide.

Project manager, project controller and construction supervisor for energy projects from 110 to 525 kV – substations, overhead lines and grid expansion. For grid operators, general contractors and plant builders – on site in Germany, Poland and across Europe.

Voltage levels
110 – 525 kV
In the grid since
2014
Independent since
2022
Service area
Europe-wide

01 — Services

Services

From tender to commissioning – as project manager in your team, as the owner's project controller or as independent construction supervision between client and contractors.

01Project management

Overall responsibility for energy projects in the high-voltage grid – substations, overhead lines and grid expansion – from award to commissioning.

  • Project organisation, scheduling and resource planning across all phases
  • Responsibility for cost, schedule and quality towards the client
  • Steering designers, suppliers and subcontractors
  • Reporting, decision papers and documentation of project results
02Project controls

Client-side project controls for grid operators and general contractors – acting as the owner's extended arm, with a technical understanding of what actually happens on site.

  • Schedule and cost control, review and approval of construction programmes
  • Review of works, measurements, variations and invoices
  • Coordinating interfaces between owner, design, permitting and execution
  • Status reports, risk management and preparation of decisions
03Construction supervision

Independent construction supervision for substations and overhead lines up to 525 kV DC – from foundations, steel erection and stringing to electrical installation.

  • Monitoring execution in civil works, steel erection, stringing and electrical installation
  • Checking measurements as well as material and component deliveries
  • Defect notices and tracking of their rectification
  • Quality control of electrical works
04Variation & claim management

Review and assessment of variations from the client's perspective – technically sound and contractually well documented.

  • Review and assessment of variation claims
  • Approval of works, measurements and invoices
  • Preparation of bills of quantities and final accounts
  • Risk and claim management throughout the project
05Health, safety & quality

Enforcing safety and quality on site – backed by experience from installation work, grid operations and HSE coordinator training.

  • Monitoring subcontractors' health and safety compliance
  • Joint site walks with the HSE coordinator
  • Oversight of environmental and occupational safety requirements
  • Quality control of electrical works
06Site management & short-notice support

When time is critical: external site management for substations or short-notice takeover of supervision tasks, including faults and emergency measures.

  • External site management for new-build and refurbishment of substations up to 380 kV
  • Experience with emergency tower replacement
  • Available at short notice in Germany, Poland and across Europe
  • Working languages German and English

02 — Projects

Project experience

A selection of projects in which I held project management, project controls and supervision roles.

Clients and project names on request

  1. 110kV

    Substations · New-build & refurbishment · Project management

    Power grid of a European capital

    Project management tasks for the new-build of an inner-city substation and the refurbishment of two existing plants: review and approval of schedules, assessment of variations, quality control of electrical works and subcontractor safety.

  2. 380kV

    Overhead lines · Refurbishment · Project management

    Foundation and steel refurbishment

    Project management for foundation refurbishment on 110 kV and 380 kV overhead lines and for the steel refurbishment of a 380 kV line – with budget responsibility, scheduling, subcontractor control and final accounts.

  3. 110kV

    Overhead line · Emergency · Project management

    Emergency tower replacement and fibre-optic stringing

    Project management of a short-notice emergency tower replacement – from site organisation to final account – and construction control of a fibre-optic cable stringing on a 110 kV overhead line.

  4. 380kV

    Substation · New-build · Site management & controls

    New substation in the transmission grid

    External site management over the full construction phase with project-controls duties: controlling sequences, schedule and resource planning, chairing site meetings, approving works, variations and invoices, status reports to the client.

  5. 525kV DC

    Overhead line · HVDC · Supervision

    DC corridor of a transmission system operator

    Construction supervision of a section of a 525 kV DC overhead line: monitoring civil and steel subcontractors, health and safety, measurement checks, defect notices and control of material and component deliveries.

  6. 380kV

    Substations · Site management

    Shunt reactor and 110 kV substations

    Site management for the installation of a shunt reactor in a 380 kV plant and at several 110 kV substations of a distribution system operator.

03 — Profile

Profile

From the tools to project management.

Portrait of Tim Reiz
Tim Reiz · Project manager · Supervisor · Warsaw

I know high-voltage installations first-hand – as an electrician, as a fitter in grid operations, as a site manager and as a project manager.

That path shapes how I work: I steer projects with an understanding of what actually happens on site – hands-on, safety-focused and reliable towards everyone involved, from subcontractor to owner.

  • Independent since 2022, working for grid operators, general contractors and plant builders
  • Cost and budget responsibility for multi-million-euro projects
  • Qualified electrician with switching and operating experience in 110 kV installations
  • Fluent in German and English, company based in Warsaw
  1. Independent project manager & supervisor

    Sole proprietorship, Warsaw

    Project management, project controls and construction supervision for transmission and distribution system operators, general contractors and plant builders – substations and overhead lines from 110 to 525 kV.

  2. Construction project manager

    Engineering and plant construction company

    Leading foundation and refurbishment projects on 110 kV and 380 kV towers with budget responsibility, claim management and site organisation.

  3. Fitter & construction inspector

    Distribution system operator

    Maintenance and testing of 110 kV substations and overhead lines, switching operations, on-call duty for more than 30 substations, supervision of overhead line projects.

  4. Industrial electrician

    Apprenticeship, distribution system operator

    Focus on power supply and grid technology – installation, maintenance and fault clearance on medium and high-voltage installations. Completed with the Chamber of Commerce examination.

04 — Qualification

Quali­fication

Competencies, training and certificates.

Core competencies

Project managementProject controlsConstruction supervisionSite managementSchedule controlCost controlBudget planningQuality controlVariation managementClaim managementHealth & safetyHSE coordinationMeasurement & accountsSite documentationMS ProjectMS Office

Languages & mobility

  • +German (native)
  • +English (fluent)
  • +Driving licence category BE

Training and certificates

  • 2025Occupational safety expertise for HSE coordinators on construction sites, parts 1 and 2 (TÜV)
  • 2025Site manager training of a grid operator
  • 2025Fire safety assistant (DGUV) and first-aid course
  • yearlyQualified electrician – annual safety briefing
  • 2025Diisocyanates basic training (TÜV)
  • 2020Competent person for inspection of ladders, steps and small scaffolds
  • 2020Concrete workshop
  • 2018Chainsaw basic module

05 — Contact

Let's talk about your project.

Whether project management over the full duration, client-side project controls or short-notice support in construction supervision – send me an e-mail or call. I usually reply within one working day.

kontakt@reiz.pl
Phone
+48 518 548 855
Address
Tim Reiz
ul. Ludwiki 4a/110
01-226 Warsaw, Poland
Service area
Germany, Poland and across Europe
Languages
German, English