LONDON ENERGY CONSULTANTS LIMITED

What LONDON ENERGY CONSULTANTS LIMITED does

London Energy Consultants Limited (LEC) is a private, employee-owned engineering consultancy specialising in power systems from low to extra high voltage. The firm delivers technical studies, system design, planning, protection engineering, power quality analysis, due diligence, and project management services to enterprise clients across utilities, renewable generation, oil and gas, airports, data centres, and railways. Its core offering is a suite of consultancy modules — power system studies and planning, protection system design, transmission and distribution substation design, power quality studies, regulation and due diligence, and training — executed by senior Chartered Engineers using industry-standard tools (DIgSILENT, PSS/e, NEPLAN, IPSA, ETAP, EMTP/ATP).

The business model is professional services, project-based and quote-driven, with revenue derived from direct enterprise engagements. LEC positions early involvement at the concept stage and follows projects through to commissioning, often embedding consultants in client offices. It is ISO-9001, ISO-14001, and ISO-45001 certified (Cert No. 17738). Distribution is direct enterprise field sales, supported by IET and industry-event visibility; there is no consumer-facing channel or productised software offering.

The company is headquartered in Slough, UK, with a regional office in Abu Dhabi (ADGM Square, Al Sila Tower). LEC reports a project footprint across more than 40 countries, including engagements with National Grid, Scottish & Southern Energy, EirGrid, BP, Shell, Network Rail, London Underground, London Heathrow, and Dubai Airport, alongside 12 European data centre projects and 50+ renewable generation assignments. Headcount is small (1-10 employees; eight named senior experts), reflecting a senior-expert delivery model rather than a scaled pyramid structure.

Name

LONDON ENERGY CONSULTANTS LIMITED

Legal name

London Energy Consultants Limited

Website

https://lecworld.com

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

1–10 employees

Short description

London Energy Consultants is an employee-owned UK power systems engineering consultancy providing studies, design, protection, and due diligence services to utilities, oil and gas, airports, data centres, railways, and renewables across 40+ countries.

Ownership category

akta.pro rank

Product category

Power Systems Engineering Consultancy

NAICS

Management, Scientific, and Technical Consulting Services (5416), Specialized Design Services (5414), Electric Power Generation, Transmission and Distribution (2211), Other Scientific and Technical Consulting Services (541690)

SIC

Services-Engineering Services (8711), Electric Services (4911), Oil & Gas Field Services, Nec (1389)

akta.pro primary industry

Distribution Substations & Switching Stations (MV) EPC (EUAEACAC)

akta.pro secondary industries

Power Plant Electrical Systems EPC (Switchyard, Transformers, Protection & Controls) (EUAEAAAM), Transmission line EPC & construction (overhead) (EUADAKAA), Solar PV Power Plant EPC (Utility-Scale) (EUAEAAAG), Wind Power Plant EPC (Onshore/Offshore) (EUAEAAAF)

Keywords

• Power systems engineering
• Grid integration studies
• Substation design consultancy
• Protection system design
• Renewable energy consulting

Headquarters

HQ city

Slough

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Others, Infrastructure

Revenue model

1. Engineering Consultancy Services: LEC generates revenue through providing professional engineering consultancy services covering power systems from low to extra high voltage. Services include technical studies, system design, planning, analysis, and project management throughout the project lifecycle. The consultancy model involves early client involvement starting at concept stage through to construction, testing, commissioning, and acceptance.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

LEC is an employee-owned engineering consultancy that delivers power systems services spanning low to extra high voltage, including power system studies and planning, protection system design, transmission and distribution substation design, grid connection studies for renewable generation, power quality studies and measurements, and regulation/privatisation/due diligence advisory. Services are delivered by senior expert consultants from concept stage through specification, construction, testing, commissioning, and acceptance, often on-site at client locations across more than 40 countries.

Product overview

London Energy Consultants is an employee-owned engineering consultancy offering a unified suite of power systems consultancy services. The core offering encompasses transmission and distribution engineering, renewable generation (solar PV and wind), data centre power infrastructure, railway electrification, and oil and gas facilities. These services are delivered through specialist consultancy modules including power system studies and planning, protection system design, power quality analysis, regulation and due diligence advisory, and technical training. All services are supported by a team of senior engineers proficient in industry-standard software including DIgSILENT, PSS/e, NEPLAN, IPSA, ETAP, and EMTP/ATP. The company serves clients globally from offices in the UK (Slough) and Abu Dhabi.

Differentiator

Problem solved

Functional benefit

Products and services

• Transmission & Distribution Consultancy Engineering consultancy services covering low to extra high voltage power systems, including substation design, grid planning, and network reinforcement for utilities and industrial clients.
• PV Solar Generation & Storage Consultancy Specialist consultancy for photovoltaic solar generation projects and energy storage systems, with experience on 50+ projects including large-scale installations such as the 100 MW Katsina Nigeria and 75 MW PAS Nigeria projects.
• Wind Farm Consultancy Engineering consultancy services for wind farm projects, including grid connection, power system studies, and technical due diligence for onshore and offshore wind developments.
• Airport Power Systems Consultancy Specialist electrical infrastructure services for airports, including high voltage distribution systems and power quality studies for critical aviation facilities such as London Heathrow Terminal 5 (132 kV/33 kV/11 kV/LV) and Dubai Airport.
• Data Centre Power Systems Consultancy Engineering consultancy for data centre electrical infrastructure, covering medium to high voltage power systems up to 400 MVA capacity across the UK (12 projects, 24 MVA to 120 MVA), Belgium (150 kV/11 kV), Netherlands (220/22 kV and 150/22 kV), and Finland (110/11 kV 400 MVA).
• Railway Electrification Consultancy AC and DC railway power systems consultancy, including traction power supply, network connections, and system upgrades for urban transit and mainline rail clients such as Network Rail, London Underground (Victoria Line and SSR Upgrade), East London Line, HK MTRC, and KCRC.
• Oil & Gas Power Systems Consultancy Engineering consultancy for offshore platforms, refineries, and oil/gas facilities, including substation design and power distribution systems for clients such as BP (Clair Ridge Offshore, Rumaila, Grangemouth), Shell (Stanlow, Forcados, Syria), Conoco (Hutton offshore), and TNK (Orenburg).
• Conventional Generation Consultancy Consultancy services for conventional power generation facilities, including system studies, grid connection, and technical due diligence for thermal, hydro, and other conventional generation assets.
• Power System Studies & Planning Comprehensive power system analysis including load flow, fault, protection coordination, and dynamic studies using industry-standard software tools (DIgSILENT, PSS/e, NEPLAN, IPSA, ETAP, EMTP/ATP), with 100+ assignments completed for clients including National Grid, Scottish & Southern Energy, EirGrid, and Nigerian transmission.
• Protection System Design Design and specification of protection systems for transmission and distribution networks, covering voltage levels from 11 kV to 400 kV, with 50+ projects including National Grid 400 kV and 275 kV and Scottish & Southern Energy 11 kV to 132 kV.
• Power Quality Studies & Measurements Power quality analysis services including harmonic studies, voltage flicker measurements, and network compliance assessments, with 60+ studies completed for PV Solar, Wind Power, Network Rail, and London Underground projects.
• Regulation, Privatisation & Due Diligence Services Advisory services for regulatory submissions, electricity market privatisation, and technical due diligence for transactions, with engagements including Oman MEDC price control submission, Oman Regulator price control of DisCos, Moldova DisCo privatisation, Italy transmission company nationalisation, Ofgem, and Nigeria DisCos.
• Training Services Technical training programs for power system personnel covering planning, design, protection, and operational procedures, delivered to clients including Oman Mazoon DisCo, Nigeria TCN staff, National Grid, and Ethiopian power sector counterparts.

Named customers10 records

Segments6 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Scale indicators8 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• AFRY (formerly Pöyry): European-headquartered engineering and design consultancy with deep power generation, T&D, and renewable integration practices. Competes for utility advisory, due diligence, and grid code work internationally.
• Tractebel (Engie): Belgian engineering consultancy with a large power systems practice covering generation, transmission, renewables, and energy markets advisory. Overlaps directly with LEC's utility and renewable developer segments.
• Black & Veatch: US-rooted global engineering, procurement, and construction firm with significant power generation, T&D, and data centre infrastructure practices. Competes for data centre and utility mandates LEC also serves.
• AtkinsRéalis (formerly Atkins / SNC-Lavalin): Large engineering services firm with strong power, nuclear, rail, and grid integration practices across the UK and Middle East. Targets the same enterprise utility and infrastructure client base as LEC.
• WSP: Global multidisciplinary engineering consultancy with a major power systems and energy transition practice, including the legacy PB Power business where LEC's founder previously worked. WSP competes for the same utility, renewables, and rail mandates but at vastly greater scale.
• DNV (Energy Systems): Global assurance and engineering consultancy with a major power systems advisory practice covering grid integration, renewable interconnection, and energy markets. Competes for technical due diligence and grid code advisory work internationally.
• Mott MacDonald: International engineering consultancy with significant power systems, T&D, and renewables advisory capability. Competes for National Grid, SSE, and rail/aviation clients LEC serves, with broader multidisciplinary resources.
• Baringa Partners: Energy-focused consultancy with strong practices in power markets, regulation, and grid economics advisory. Competes with LEC on regulatory, privatisation, and due diligence mandates for utilities and regulators.

Direct peers

• PSC Consulting: Specialist power systems and energy markets consultancy offering grid connection studies, power quality, and protection system services across the UK, Australia, and other markets. Highly comparable niche positioning to LEC.
• TNEI (Transmission Network Engineering Consultants): UK-based specialist power systems consultancy focused on transmission network analysis, grid connection studies, and renewable integration. Closest direct competitor to LEC in scale and specialism, serving similar UK and European utility clients.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/london-energy-consultants

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about LONDON ENERGY CONSULTANTS LIMITED