# Mott MacDonald Group - Global Engineering, Management & Energy Infrastructure Technical Consultancy

> Mott MacDonald is an employee-owned global engineering, management, and development consultancy with over 16,000 engineers and specialists in 150 countries. Celebrated worldwide for its peerless engineering rigor, Mott MacDonald provides owner’s engineering, detailed multidisciplinary design, and turnkey engineering solutions for major power utilities and transmission operators.

- **Headquarters:** Croydon, London, United Kingdom
- **Founded:** 1902
- **Website:** https://www.mottmac.com
- **Canonical URL:** https://voltformer.com/epc-contractors/mott-macdonald
- **Markdown Source:** https://voltformer.com/epc-contractors/mott-macdonald.md

## How to select an EPC contractor

EPC means engineering, procurement and construction. Compare contractors by project technology, country, voltage level and contractual delivery scope.

## Directory methodology

This directory presents company profiles, not a scored ranking or certification. Company-wide experience may include engineering, EPCM, equipment supply and consortium roles. Confirm the exact role, current qualifications and project references with the official company before shortlisting.

## What should an EPC enquiry include?

Specify the project country, capacity, grid voltage, single-line diagram, site conditions, scope boundaries, target schedule and acceptance tests. Clarify who owns permitting, civil works, grid studies, commissioning and performance guarantees.

Equipment enquiries submitted here go to Voltformer. Contact the listed company directly for its EPC services.

## Engineering Specializations

- Power Generation Engineering & Owner’s Engineering
- High-Voltage Transmission Networks & HVDC Interconnectors
- Grid Stability, Protection Coordination & Dynamic Modeling
- Hydropower & Pumped Storage Systems
- Decarbonization & Clean Renewable Energy Integration

## Turnkey EPC Scope & Capabilities

- **Basic & Detailed Engineering:** Listed capability; confirm project-specific scope
- **Global Procurement & Supply Chain:** Not listed
- **Civil & Structural Construction:** Not listed
- **Testing & Plant Startup:** Listed capability; confirm project-specific scope
- **High-Voltage Substation EPC:** Not listed
- **Transmission Lines:** Listed capability; confirm project-specific scope
- **Turnkey Power Plant EPC:** Not listed
- **Grid Interconnection:** Listed capability; confirm project-specific scope

## Key Representative Projects

### Viking Link HVDC Interconnector
- **Capacity / Scope:** 1,400 MW / 765 km HVDC Interconnector
- **Country:** United Kingdom & Denmark | **Client:** National Grid / Energinet | **Year:** 2023
- **Description:** World’s longest land and subsea HVDC interconnector linking the UK and Danish transmission grids to share renewable power.
- **Technologies:** ±525 kV DC Cable, VSC Converter Stations, 400 kV AC Interconnection

### Bujagali Hydropower Project
- **Capacity / Scope:** 250 MW Run-of-River Hydro Power Facility
- **Country:** Uganda | **Client:** Bujagali Energy Ltd | **Year:** 2012
- **Description:** Comprehensive engineering, design verification, and construction monitoring for a transformative hydropower project providing 40% of Uganda’s power.
- **Technologies:** Kaplan Turbines, Gravity Dam, 132 kV Switchyard & Transmission

### East Anglia ONE Offshore Wind Substation
- **Capacity / Scope:** 714 MW Offshore Wind Grid Connection
- **Country:** United Kingdom | **Client:** ScottishPower Renewables | **Year:** 2020
- **Description:** Detailed electrical engineering for the onshore substation and 400 kV National Grid interconnector.
- **Technologies:** 400 kV AIS/GIS, Static Var Compensators, Underground EHV Cabling

## Technical Services

- **Owner’s Engineer & Turnkey EPC Supervision:** Comprehensive technical due diligence, EPC contract supervision, design review, and commissioning verification for power plants.
- **High Voltage Transmission & Substation Design:** Detailed primary and secondary engineering for 132 kV to 500 kV AIS, GIS, and HVDC converter stations.
- **Power System Studies & Transient Analysis:** Load flow, short circuit, arc flash, transient stability, harmonic analysis, and grid code compliance modeling.
- **Renewable Generation & Hybrid Storage Integration:** Engineering design for utility-scale solar PV, onshore/offshore wind, and battery energy storage systems (BESS).

## Quality Standards & Certifications

- ISO 9001
- ISO 14001
- ISO 45001
- ISO 27001 Information Security
- PAS 2080 Carbon Management

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