Infrastructure

UK Infrastructure Asset Valuations: Regulated Asset Base Analysis

Tracking 37 regulated infrastructure assets across the UK with a combined RAB of £327.0B.

Published by GP Stakes, the private markets intelligence platform

37
Total Assets
28
Assets with RAB
£327.0B
Total RAB

RAB by Sector

SectorAssetsTotal RABAverage RAB
Transport5£130.0B£65.0B
Water13£121.6B£10.1B
Energy18£75.4B£5.4B
Telecom1N/AN/A

Individual Asset Profiles

AssetSectorSub-TypeRABRevenueOwnerRegion
Network Railtransportrail_infrastructure£65.0BN/ANetwork Rail Infrastructure Limited (public)Great Britain
Network Railtransportrail_infrastructure£65.0BN/ANetwork Rail Infrastructure Limited (public)Great Britain
Thames Waterwaterwater_and_sewerage£18.7BN/AKemble Water HoldingsLondon, Thames Valley, Surrey, parts of surrounding counties
Thames Waterwaterwater_and_sewerage£18.7BN/AKemble Water HoldingsLondon, Thames Valley, Surrey, parts of surrounding counties
National Grid Electricity Transmission (NGET)energyelectricity_transmission£15.5BN/ANational Grid plcEngland & Wales
United Utilitieswaterwater_and_sewerage£12.0BN/AUnited Utilities Group PLCNorth West England
United Utilitieswaterwater_and_sewerage£12.0BN/AUnited Utilities Group PLCNorth West England
Severn Trent Waterwaterwater_and_sewerage£10.5BN/ASevern Trent PlcMidlands, Mid Wales
Severn Trent Waterwaterwater_and_sewerage£10.5BN/ASevern Trent PlcMidlands, Mid Wales
UK Power Networks (UKPN)energyelectricity_distribution£8.9BN/ACK Infrastructure / Power Assets HoldingsSouth East England, East England, London
Anglian Waterwaterwater_and_sewerage£8.2BN/AAnglian Water GroupEast England
Anglian Waterwaterwater_and_sewerage£8.2BN/AAnglian Water GroupEast England
Cadent Gasenergygas_distribution£7.8BN/ACadent Gas LimitedNorth West, West Midlands, East England, North London
Western Power Distribution (National Grid ED)energyelectricity_distribution£7.5BN/ANational Grid plcMidlands, South West, South Wales
Yorkshire Waterwaterwater_and_sewerage£6.1BN/AKelda GroupYorkshire
Yorkshire Waterwaterwater_and_sewerage£6.1BN/AKelda GroupYorkshire
National Grid Gas Transmission (NGGT)energygas_transmission£5.8BN/ANational Grid plcGreat Britain
Southern Waterwaterwater_and_sewerage£5.3BN/AMacquarie Asset ManagementHampshire, Isle of Wight, West Sussex, Kent, parts of Surrey & Berkshire
Southern Waterwaterwater_and_sewerage£5.3BN/AMacquarie Asset ManagementHampshire, Isle of Wight, West Sussex, Kent, parts of Surrey & Berkshire
SGN (Scotia Gas Networks)energygas_distribution£4.8BN/ASGNScotland, South East England
SSEN Transmissionenergyelectricity_transmission£4.5BN/ASSE plcNorth Scotland
Scottish & Southern Electricity Networks (SSEN)energyelectricity_distribution£4.2BN/ASSE plcNorth Scotland, Southern England
Northern Powergridenergyelectricity_distribution£3.8BN/ABerkshire Hathaway EnergyNorth East England, Yorkshire
SP Energy Networksenergyelectricity_distribution£3.2BN/AIberdrola / ScottishPowerCentral & Southern Scotland, Merseyside, North Wales
SP Transmissionenergyelectricity_transmission£3.0BN/AIberdrola / ScottishPowerCentral & Southern Scotland
Electricity North West (ENWL)energyelectricity_distribution£2.4BN/AElectricity North West LimitedNorth West England
Wales & West Utilities (WWU)energygas_distribution£2.1BN/AWales & West UtilitiesWales, South West England
Northern Gas Networks (NGN)energygas_distribution£1.9BN/ANorthern Gas NetworksNorth East England, North Cumbria
Sorek B Desalination PlantwaterdesalinationN/AN/AIDE TechnologiesSorek, Israel
Hassyan Clean Coal Power PlantenergycoalN/AN/ADEWA / ACWA Power / Harbin ElectricDubai, UAE
Jio Platforms (India Telecom)telecommobileN/AN/AReliance Industries / JioIndia (nationwide)
Noor-Ouarzazate Solar ComplexenergysolarN/AN/AMASEN / ACWA PowerOuarzazate, Morocco
Bhadla Solar ParkenergysolarN/AN/AMultiple sponsors (Adani, SB Energy, etc.)Rajasthan, India
Medupi Power StationenergycoalN/AN/AEskomLimpopo, South Africa
Istanbul New AirporttransportairportN/AN/AIGA (Cengiz-Kolin-Limak-Mapa-Kalyon JV)Istanbul, Turkey
Lima Metro Line 2transportrailN/AN/ASociedad Concesionaria Metro de Lima Línea 2Lima, Peru
Ruta del Sol II (Colombia)transporttoll_roadN/AN/AYuma ConcesionariaColombia

Ownership Mapping

OwnerAssetsTotal RAB
Network Rail Infrastructure Limited (public)2£130.0B
Kemble Water Holdings2£37.4B
National Grid plc3£28.8B
United Utilities Group PLC2£24.0B
Severn Trent Plc2£21.0B
Anglian Water Group2£16.4B
Kelda Group2£12.2B
Macquarie Asset Management2£10.6B
CK Infrastructure / Power Assets Holdings1£8.9B
SSE plc2£8.7B
Cadent Gas Limited1£7.8B
Iberdrola / ScottishPower2£6.2B
SGN1£4.8B
Berkshire Hathaway Energy1£3.8B
Electricity North West Limited1£2.4B

Investment Implications

UK regulated infrastructure offers predictable, inflation-linked returns underpinned by the RAB model. Key considerations for infrastructure fund investors:

Water Sector

Dominates by RAB value, offering stable cash flows under Ofwat regulation

Energy Networks

Essential transmission/distribution infrastructure with long-dated asset lives

Transport Assets

Growth potential linked to passenger volumes and capacity expansion

Telecom Infrastructure

Growing digital infrastructure investment opportunity

Methodology

Data sourced from UK regulatory filings (Ofwat, Ofgem, ORR, Ofcom), company accounts, and public disclosures. RAB values represent the most recently published regulatory asset base figures. Revenue figures are annual as reported.

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