Case Studies
See how network operators and asset owners use EA Technology's solutions to find faults early, reduce outages and make evidence-based investment decisions.
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Reducing Electrical Risk with Partial Discharge Insights for Water Utilities
A major Australian water utility used non-intrusive partial discharge testing across more than 40 HV assets to find early-stage insulation risk, set a condition baseline and assess the case for continuous PD monitoring.
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UltraTEV Plus² Confirms and Classifies Partial Discharge on Trinity Mirror HV Network
UltraTEV Plus² confirmed and classified partial discharge on Trinity Mirror’s 11kV print-site network, pinpointing a failing current transformer so it could be replaced at a convenient time rather than fail in production.
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Proactive PD Survey Helps Prevent Future High-Voltage Asset Failures
The project demonstrates the value of early diagnostics and expert intervention at high-profile, mission-critical locations. By identifying developing issues and environmental risks, EA Technology supported the prevention of failure, enhanced operational resilience, and laid the groundwork for long-term condition monitoring. Read our full case study in the downloads section.
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On-Line Partial Discharge Survey Prevents Potential Catastrophic Failure
EA Technology carried out a proactive on-line Partial Discharge (PD) survey for a major UK energy-from-waste operator. Our expert diagnostics identified early signs of insulation failure, helping the client avoid a costly unplanned outage and strengthen the reliability of their electrical infrastructure. Read our full case study in the downloads section.
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Project Compilation: Network Strategy & Transformation
EA Technology has won and participated in a wide range of projects in the Net Zero space. This playbook summarises and highlights our key projects across two main areas – Network Transformation and Electrification of Transport. Clients: Network Transformation Electrification of Transport Download our project playbook here: Additional resources:
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Case Study: National Guidelines for DNSP-Owned BESS with ENA
EA Technology led ENA's national guidelines for DNSP-owned battery energy storage systems, giving Australian networks one integration framework.
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Case Study: Global and NZ Energy Flexibility Projects
A scan of energy flexibility projects in New Zealand and worldwide for EEA, highlighting best practice for planners and distribution businesses.
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Black Cab Green Case Study
With UKPN, we studied how London's move to zero-emission capable black cabs from 2018 would affect charging needs and the electricity network.
Investing in Electrical Resilience at UK Airports
UK Power Networks Services worked with EA Technology's Invest service to strengthen electrical resilience at major UK airports.
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CableData Monitor safeguards critical power supplies at INEOS Grangemouth
INEOS used CableData Monitor to locate and track PD online at Grangemouth, judging its urgency and the need for shutdowns and remedial work.
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Case Study: Continuous Monitoring at G20 Summit
From detecting partial discharge to remedial action, how Astute HV continuous monitoring protected critical assets during the G20 Summit.
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Report: International Review of Open Communication/Standards or Protocols for Flexibility Management
With EEA New Zealand, we reviewed open communication standards and protocols for flexibility management across international markets.
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MV Cable Forensic Investigation Turns Up Major Systemic Concern
A forensic investigation into a university's failed MV XLPE cable revealed a systemic concern with far-reaching implications for the asset owner.
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Case Study: LV Monitoring Predicts the Distance to LV Cable Fault Caused by Car Collision
After a car crashed into an LV pillar and exposed live conductors, LV monitoring data predicted the distance to the cable fault, speeding up repair.
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Case Study: Integration of Low Carbon Technologies for TasNetworks
For TasNetworks, we developed options to connect more low carbon technologies such as solar PV and EVs to the LV network at minimum cost.
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Partial discharge survey of MV switchgear and transformers at SULB Company, Bahrain
Our first PD survey at SULB, a Bahrain steel producer, used the UltraTEV Plus² and UltraTEV Locator to assess MV switchgear and transformers.
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Project: LV Network DER Hosting Capacity Assessment – with TasNetworks
For TasNetworks, we assessed LV network hosting capacity for DER to support orchestration, capacity trading and transport decarbonisation.
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Case Study: LV Management with SA Power Networks
We investigated strategies to help SA Power Networks accommodate growing DER on its LV network while maintaining quality of supply.
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Case Study: Effective use of Online Partial Discharge Test
Since December 2021, Dak Lak PC has used an Astute HV Monitor to test 22kV assemblies across fourteen 110kV substations, improving productivity.
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Low carbon heating system Case Study
How we modernised the top floor of our HQ with a low carbon heating system, creating better spaces while cutting energy use and emissions.
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Independent Audit of Electricity Flexibility and Forecasting System (EFFS)
WPD engaged EA Technology to independently audit the deliverables of its NIC-funded EFFS project and report on its delivery for Ofgem.
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Review of GB Innovation Projects
A review of the innovation projects delivered by GB gas and electricity networks during RIIO-ED1, and the lessons they offer other operators.
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Project: Charge Project – with SP Energy Networks
SP Energy Networks' Charge project combines transport and network planning to speed up connections for EV charging infrastructure across the UK.
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Case Study: DSO Capability Model and Roadmap – with Australian DNSP
For an Australian DNSP, EA Technology and Marchment Hill Consulting built a DSO capability model and roadmap for a customer-centric, DER-enabled network.
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Case Study: DSO Transition Roadmap – with a New Zealand DSO
We helped a New Zealand distribution business rethink its model, roles and skills, and map its transition to a distribution system operator.
Project: Smart Grid Roadmap – with ENA
With ENA, we developed a smart grid roadmap with clear milestones for integrating DER while keeping the network reliable, safe and affordable.
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Project: Electric Nation – with Western Power Distribution
Electric Nation was the world's largest home smart charging trial, with 673 EV owners providing over 2 million hours of charging data for WPD.
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Project: My Electric Avenue – with Scottish and Southern Electricity Networks
My Electric Avenue trialled clusters of EVs with over 200 customers to test the impact on local networks, working with SSE and funded by Ofgem.
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Case Study: Network Transformation Roadmap – with Energy Networks Australia (ENA)
With ENA and CSIRO, we helped shape the Electricity Network Transformation Roadmap, setting out the actions to make the grid fit for the next decade.
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Case Study: Open Energy Networks Project (OpEN) – with ENA and AEMO
ENA and AEMO's Open Energy Networks project looked at how best to integrate the growing number of distributed energy resources into the grid.
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Case Study: DSO Vision and Strategy for a Distribution Network Operator in the UK
We supported a UK DNO in rethinking its business model, roles, capabilities and skills for its evolution from DNO to distribution system operator.
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Partial Discharge on Outdoor Terminations
Before and after evidence showing how contamination causes PD on outdoor cable terminations, and how inspection and cleaning prevent failure.
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LED Lighting and controls upgrade
Upgrading our own HQ to LED lighting and smart controls: a quick win on our journey to net zero, cutting both electricity use and carbon.
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Case Study: Fault Prevention With A DNO
A partial discharge service that could have saved a UK distribution network operator $300,000, and what the case shows about preventing faults.
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How CLP’s asset management was transformed by EA Technology
How EA Technology helped CLP Power, which supplies 80% of Hong Kong, take its already efficient asset management to the next level.
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A pioneering project for Asset Investment Management using CBRM in Oman
Majan Electricity in Oman used CBRM to make quantified, risk-based investment decisions for replacing major assets in its 33/11kV primary substations.
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Development and delivery of a Transformer Health Model for Mumbai Distribution Network
EA Technology developed a transformer health model for Reliance Infrastructure's Mumbai distribution network to support risk-based asset decisions.
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CBRM model predicts 20% fewer replacements than the age-based approach would give
For ENERGEX in Australia, our condition-based risk management (CBRM) model predicted 20% fewer asset replacements than an age-based approach.
TNOMS: Determining uncertainty in asset degradation and modelling for transmission network operators
Working with two of Great Britain's transmission operators, we quantified uncertainty in asset degradation and modelling for network output measures.
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Thanks to EA Technology, it’s business as usual for Britain’s six Distribution Network Operators
How EA Technology's work on Ofgem's common methodology kept reporting and investment planning business as usual for Britain's six DNOs.
EA Technology’s unified risk management methodology gets Ofgem approval
EA Technology's unified approach to asset health and risk, developed with Britain's DNOs, was approved by Ofgem for regulatory reporting.
SPEN: Realising the benefits of modelling beyond regulatory framework
SP Energy Networks used asset modelling beyond regulatory reporting, gaining wider value from its multi-billion pound investment programme.
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Croatia’s network operator brings in EA Technology expertise
Croatia's distribution operator HEP ODS brought in EA Technology's asset management expertise during a major transformation of its network.
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Partial Discharge in MV Cables
An IEEE ICC paper reviewing 100 failed cables from our forensic work, looking at both the proximate and the ultimate causes of cable failure.
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CDC Sample Report
Recorded data on PD activity is interpreted with CableData Collector analysis software. The results are output in a report showing the severity of PD activity, evidence on which to assess the risks of failure, intelligence for decisions on remedial action or replacement.
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Addressing Noise in online PD testing
Real world, online, partial discharge testing is subject to interfering noise pickup. Learn about the equipment to be tested and understand the environmental impact. Using different technologies TEV, US, UHF, can provide different results, or supporting data for your conclusions. Background measurements are valuable for determining if a measurement is real or noise.
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Advancements in Online PD Testing
Online, non-invasive PD testing now covers assets from 3kV to 500kV and beyond. A look at the latest techniques and what they reveal about asset health.
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Steel Tower Condition Assessment
How a clear line of sight was built through the asset management process for overhead line steel towers, using consistent condition assessment.
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Avoid MV Cable Termination Failures
Learn the importance of forensic investigations, quality workmanship, investing in the right tools and proper training in preventing termination failures.
Optimized Asset Health Program
How Ofgem's Network Asset Indices Methodology measures asset health, criticality and monetised risk, and how it supports an optimised asset health programme.
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Transition to Distribution System Operator
Policy, technology and customer change are reshaping power networks. What the move to a distribution system operator (DSO) means for DNSPs.
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Crater Case Study
UCE designed the contestable works to connect two 5MW solar farms to a shared Northern Powergrid 33kV connection, including two underground cable routes.
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NAM Cable Expert Witness Case Study
Acting as independent cable expert, we reviewed the jointing practices behind several 132kV XLPE cables that failed during high-voltage testing.
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Protection Scheme Assessment Belco Case Study
After an island-wide blackout, BELCO appointed EA Technology to review protection performance and grading, and to plan and deliver improvements.
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