National Grid Alliance, UK - 400/132 kV and 275/132 kV substations
As part of National Grid South West Alliance, LPA’s role is to provide engineering services for various 400 kV and 275 kV substation design & development, protection and design assurance.

Technical Due Diligence, West Africa
LPA was commissioned by an investment company to carry out technical due diligence of transmission and distribution assets in West Africa.

Nuclear Power Station at Hinkley Point C, UK Power Networks - 275 kV and 11 kV
LPA was commissioned to design major substations for multi-million Hinkley Point C Construction Electrical Supply Project. The detailed design covered cable layout, switchroom arrangement, HV switchgear panels, LV pillars, protection settings, battery supply and SCADA system.

PV Generation - Harmonic Studies, Scottish & Southern Energy, UK
LPA was commissioned to measure and perform harmonic penetration studies for the addition of the PV generation and to provide guidance and recommendations for any mitigation measures.

Norfolk Coast Wind Park Grid Connection, EDF Energy
System studies to plan a 132 kV grid connection for an off-shore 300 MW wind park. Studies included power flows, short circuit and harmonic analysis.

Project Management for Transmission System, Nigeria - 330/132/33 kV system
LPA holds responsibility for project management, execution and site supervision of 330 kV, 132 KV and 33 kV transmission and distribution substations and overhead lines.

EDF Energy – London Heathrow Airport Terminal 5 Project - 33/11 kV network
LPA was commissioned to perform distribution system conceptual and outline design, specifications, bid reviews and approval of contractor designs. Substations and cable systems were designed and also managed design delivery.

London Underground Ltd - Sub Surface Lines Power Upgrade Package 1A - Independent Design Authority - 22/11 kV and DC systems
LPA was engaged by Enterprise Rail to perform the role of the Independent Design Authority (IDA) for design assurance purposes for AC and DC substation plant, SCADA, protection and control systems and high voltage cabling for Package 1A.

National Grid Electricity Transmission/Scottish Power Transmission - SubSynchronous Resonance Study - 400 kV system
LPA was engaged by NGET/SPT Upgrades Ltd. to perform a SSR study following the proposed introduction of series capacitors to the GB 400/275 kV transmission system.

Technical Due Diligence, West Africa
LPA was commissioned by an investment company to carry out technical due diligence of transmission and distribution assets in West Africa.

National Grid – Power System Planning Work
LPA carried out system planning work for National Grid. Scheme teams were formed and proposed designs were vetted against the relevant security planning standards.

ESB International Ltd – Grid Connection Consultancy Service - 400/275/132 kV system
LPA was engaged to review and advice on new generation connection opportunities in the England and Wales transmission system. Following feasibility studies further detailed studies were performed.

Intervex Russia to Turkey HVDC Interconnector
Feasibility study for a proposed HVDC 1000 MW link between Russia and Turkey. The study considered available technology, use of Mass Impregnated Non-Draining cables submerged 2000 m below the sea and transmission reinforcements in both countries.

EDF Energy – 132/33 kV Electricity Infrastructure Planning  
Contribution to Infrastructure Development Plans (IDP); Developing Regional Strategies for defined sector of the network to maximise network development synergies; Post investment appraisals of selected major projects.

Solar Energy Farm Grid Connection, Renewable Energy Developer - 33/11 kV system
Commissioned by a solar energy developer to investigate the technical issues associated with the proposed connection of a 5 MW Photovoltaic (PV) farm into their local distribution network.

System Planning & Studies reinforcement, Scottish & Southern Energy - 132/33/11 kV
Commissioned to carry out system planning work for SSE to include load/generation reinforcement schemes and system investment plans.

Power System expansion for mining facility, Morocco - 66/11 kV
LPA was commissioned to expand the power system of a phosphate mining facility by creating a model of the network in IPSA to determine power flows in the system and advising the client on optimized circuit configurations and overhead line routes.

Generator Sizing and modeling for Emergency Diesel Generator, West Burton
LPA was commissioned to carry out a magnetization inrush current phenomena study during the energisation of a 400 kVA generator transformer.

Power System Study for SABIC Olefins 6 Power Plant
LPA was commissioned by SABIC to carry out the power system studies and provide recommendations to the client on the effect of addition of a new 33 MW steam turbine generator to their existing distribution network.

Manufacturing Plant Improvement and Market Survey for global manufacturer
LPA was commissioned by a global electrical equipment manufacturer to carry out market study into substation equipment and power cables ranging from 11 kV to 500 kV, and telecommunication cables in sixteen countries in the Middle East and North Africa.

EirGrid/ESB Transmission System Planning, Ireland
Commissioned by EirGrid to plan the Irish transmission system for new load and generation connections by carrying out system studies.

Cross London Rail Links Ltd – Cross London Rail Links Non Traction HV Power Supply Feasibility Study (Phase 1)
LPA reviewed CLRL non-traction power requirement and determined whether the subsurface supply and distribution system could be satisfactorily supplied.

MVV GmbH - Grid Connection Consultancy Services
Grid connection consultancy to review and advice on new generation connection opportunities in the England and Wales transmission system.

London Underground Ltd – Sub Surface Line Upgrade
System studies to plan the future power supply system and produce a conceptual design for reinforcements to the LUL HV power system in order to facilitate the increase in demand at Sub Surface Line. Assessed the harmonic levels and voltage fluctuations at DNO connection points and other relevant substations.

Owner’s Engineer role - Waste to Energy Power Generation Plant at Allington
LPA engineers were involved with the design concept, preparing specifications, and the review of turnkey contractors design for a 43 MW EfW power plant in Kent.

Waste Recycling Group – Generation Connection Feasibility Study
LPA performed feasibility studies to determine the options available for the connection of the generator to the local Distribution Network Operator’s (DNO) system for a number of locations including Calvert and Blackenham.

BT – Data Centre Power Supplies
Undertook a brief high level investigation to assess options for the grid connection of data centre at a number of proposed sites including Madley and St Albans.

Owner’s Engineer role for Puttalam Power Plant, Sri Lanka
Owner's Engineer services with the scope covering site feasibility, design review and final commissioning of the 300 MW coal fired plant. Both the auxiliary supply system and the grid connection were considered.

Conceptual Design and Specification for CCGT Power Plant, Ca Mau
Conceptual design and specification of auxiliary supplies and 220 kV grid connection for a 720 MW CCGT for Petroleum Vietnam being constructed in the Mekong Delta Region.

Owner’s Engineer role for Thanet Earth
Owner's Engineer to design and deliver the complete electrical network solution for the site, and network connection with the DNO.

Transco – Security and Planning Standards, Western Europe
Reviewed existing security planning standards and drafted new standards that were more appropriate for the restructured electricity industry and accommodated significant load growth.

EDF Energy Powerlink – London Underground - Victoria Line Upgrade
Studied, planned and designed the future power system including new grid intake, earthing system design reviews and designed harmonic filters and static var compensators.

Sultanate of Oman – Electricity Sector Regulatory Review
Review of regulatory reforms for the electricity sector in Oman prior to its privatization covering security of supply, planning methodology, demand forecasting, economic despatch of generation, loss optimisation and network constraints.

Rayleigh 132 kV Rationalisation, EDF Energy
Rationalisation of the 132 kV system around Rayleigh with system development including a new GIS substation near the NG site and reconfiguration of the existing (local) 132 kV substation and the dismantling and rerouting of existing 132 kV overhead lines.

London Underground - Delivery of Major Project Works
LPA staff were integrated within the LUL Project Delivery Team. They were responsible for the delivery of several major projects from inception to completion.

Oil Refinery in the UK- Supply System Review & Design
Design of new 33 kV feeder network enabling proposed increase in site demand of 100 MVA a new 400 kV source associated with CONOCO's nearby CHP power station.

Network Rail – Harmonic Study
Harmonic study to quantify the effect of increased power demand and rectifier load caused by the introduction of new rolling stock. The study investigated the need for harmonic mitigation measures at several 33 kV and 66 kV grid intakes.

Technical Due Diligence on privatization of distribution companies, Moldova
LPA conducted due diligence of the two northern electricity distribution companies prior to privatisation. Capex stream was devised to the horizon year to include in the financial model.

Western Power Distribution, Radstock MSC System Studies
LPA performed system studies for the reactive compensation equipment at Radstock 132/33 kV grid supply point to determine the size of MSCs and harmonic mitigation measures.

Protection grading system review at Gatwick Airport, EDF Energy
LPA reviewed the protection grading of the high voltage network. Load flow and fault level studies were conducted and revised relay settings were determined.

Protection grading review at Stanstead Airport, EDF Energy
LPA reviewed the protection grading of the Stanstead Airport’s high voltage network. Load flow and fault level studies were conducted and revised relay settings determined.

PyReco Generation Connection Feasibility
LPA completed a feasibility study highlighting the 11 kV grid connection options for the proposed 8 MW EfW power plant.

ESB Wind Generation Grid Code Review, Ireland
Review of ESB draft grid code specific to wind farm integration which addressed fault ride through, frequency and reactive power and voltage regulation.

National Grid – Evaluation of Planning Software
Comparison of DigSILENT Power Factory Software with its existing operating software to assess suitability for NG requirements.

East London Line - Harmonic Penetration and Voltage Fluctuation Study
Harmonic penetration and voltage fluctuation studies carried out to assess severity of flickers and harmonic distortion on the DNOs network.

BP Power Station Grid Connection in Wales, BP
Commissioned to review grid connection options and devise new options for connection of a 500 MW power plant at both 275 kV and 400 kV voltage levels.

Network Integration Studies for BP Nerefco Wind Project
LPA carried out integration studies for the connection of 9 x 2.5 MW wind turbines at the Nerefco Oil Refinery in Holland.

Grid Connection for wind farm in Wales, Wave Crest Capital
LPA developed grid connection options at 33 kV for a proposed 20 MW wind farm in North Wales. This study required liaison with the DNO namely Scottish Power.

Wind Farm in North Wales, Transmission Line Diversion
An offshore wind farm in North Wales required a new grid connection. LPA designed the diversions necessary for the 400 kV overhead line.

BP Isle of Grain Wind Farm
Feasibility study for the 11 kV and 33 kV grid connection of a proposed 30 MW wind farm. With environmental constraints the wind farm size was reduced by almost 50%.

ABB – Ravensthorpe Power Station Integration for a Grid Connection
LPA was commissioned to develop a 440 MW CCGT at Ravensthorpe, which required a 132 kV connection.

Hot Site Earthing Calculations
LPA performed calculations to determine if a new substation installation would be considered a hot site in accordance with BS and ENA technical specifications.

Dimlington Generation Feasibility Study
Feasibility study for the grid connection of a proposed 40 MW or 12 MW generator, using condensate as a by-product of their main operations.

Buckinghamshire Generation Feasibility Study
Feasibility study for the connection of a 40 MW waste-to-energy generator to the grid, including the investigation of 132 kV and 33 kV grid connection options.

ShipCo Power Barge Feasibility Study
Feasibility study carried out for 45 MW waste-to-energy plant investigating connection voltage level, power barge with mainland system and frequency of the power system.

Feasibility Study for Derbyshire Energy from Waste Plant
LPA performed a feasibility study to determine the options available for the connection of the 25 MW generator to the local electricity utilities’ (DNO) system.

BP– Al Rayyan Power Supplies
Review of contractor's design for the power supplies for Al Rayyan's Permanent Production Platform, currently derived from Qatar Petroleum's North Field Alpha Facility via a 33 kV, 41 km submarine cable.

BP- Caspian Power Options
LPA devised and studied the electrical supply configuration options for Caspian Sea oil operations. Options included on-board generation and offshore connections, compact HVDC equipment and DC subsea cable.

British Gas / Centrica Kings Lynn PS Fault Levels Study
Determination of the necessary parameters to satisfy the requirements of Schedule 14 of the connection agreement for Kings Lynn Power Station with National Grid.

CONOCO Immingham CHP Station Integration
Appraised National Grid proposal for Grid connection of phase one (700 MW) CHP scheme at CONOCO's Humber refinery.

Dalkia – Beverages Plant in Western Europe
Study of disruption to production due to fault events and supply interruptions at a beverages plant.

IUSFirst –Three Bridges (NWR Southern PSU)
As part of a large project team, LPA staff held the responsibility for the design verification, integration of SCADA, signaling power supplies, cable routes and crossings, management of the civil contractor and submission of initial and detailed drawings.

Master Plan Study for ADB, East Timor
Carried out a master plan study for East Timor in collaboration with Ekono-Electrowatt designing the new network complete with future expansion and added generation.

Hydroelectric – Excitation Refurbishment
Prepared technical specifications for the replacement of generator excitation systems for a client in Western Europe who owns a hydro scheme built in the 1960's.

Haliburton – Caspian Sea Development Transformer Inrush Study
Study of an off-shore oil production facility to analyse power quality by modeling the effects of inrush and reverse power flow through the transformers.

Karratha 2, Shell's Woodside LNG Plant in Australia
Performed a design review of the existing systems to accommodate increase in power demand to 60 MW and ensuring new equipment compliance.

Ghana – Appraisal of PPP Projects
LPA was part of a team that investigated the existing and future requirements for Ghana’s electricity supply system.

Nigeria – Review of Electricity Investment Plans, World Bank
Review of investment plans for the electricity sector in Nigeria.

Due Diligence of a Railway Electrical Contractor for Network Rail
Carried out due diligence of a certified and approved Network Rail Contractor with particular focus on track isolation activities.

Grid Supplies to a Pharmaceutical Company, UK
LPA devised several grid connection options and provided support during project stage with specifications, protection and equipment selection.

Plant Failure Investigations, BP
LPA provides to BP on a worldwide basis a service to carryout HV rotating plant fault investigations involving diagnostic testing of insulation, supervision of repair, specification and witness of testing including acceptance.