Over the years EPS has provided engineering and design services to 65 UK renewable energy projects since the introduction of the Feed-in-Tariff.
The professional technical services included conceptual design, assistance to connect to the distribution network, detailed design, earthing studies and transformer energisation studies to name a few. We offer technical electrical support for your onshore and offshore wind turbines, hydro, tidal, solar and anaerobic digestion plant projects.
What services do we offer?
Working with leading global manufacturers of cable systems and T&D products (ABB, Siemens and GE), for over 9 years we have collectively built an extensive knowledge base and lessons learnt data base for equipment located in harsh offshore environments.
We offer a variety of services to support you and your team:
Power System Modelling & Investigative Analysis
HV Asset Manuals
Thermal Management Review and Optimisation
Electrical Safety Management
SCADA System Optimisation
Subsea Cable Management and Solutions
HV Asset Manuals
The HV Asset Manual is the go to document explaining how all the systems work showing parameter settings and technical data all in one document, making reference to key drawings and documents located within the document management system. Typical structure as follows:
Primary and secondary equipment
System location and nomenclature as per SLD
Brief technical description
Brief technical data sheet tables
Reference documents
Design technical specification
O&M Manual (s)
Technical Files (containing FAT and Commissioning Results)
Thermal settings (transformers and SVC Plus equipment)
HV and LV power modelling
Power System Reactive Power and Active Power Flow Studies
Reactive Power Flow Optimisation Studies
SVC (Static Var Compensation) modelling and optimisation
Protection Co-ordination Studies
Circuit Breaker and Protection Tripping Investigations
Protection Settings Checks
Failure Investigations
Cable and Termination Failure Investigations
Electrical Safety Management
We provide expert consultancy and advice services for blue chip organisations concerned with the safe management of risk associated with all electrical work activities. Typical services include:
Bespoke Electrical Safety Audits
Arc Flash Assessments
Arc Flash Awareness Training
Electrical Safety Rules
HV Switching Courses / Training
Asset Management
Protection Setting Schedules
Interpretation of SCADA system values
SCADA System monitoring
Electrical Equipment TAG Numbering
Electrical Obsolescence Studies
Critical Spares Lists
Lessons Learnt
SCADA System Review and Optimisation
Typical points considered from the review and or optimisation of the current I/O:
Obsolescence Report
SCADA system monitoring services
Alarm Management
Cyber Security – firewalls
NIS Regulations
UPS batteries – stability
Relative merits of a single combined SCADA system (multiple servers)
Review opportunities to draw any further data integration of existing equipment (e.g. SGT, Hydrans)
DGA with moisture in oil
Partial Discharge Testing
Bushing Monitoring
OLTC temperature monitoring
Load current and analogue signals from the actual gauges (WTI, LTI)
Analog outputs from the Buchholz gas accumulation
Core ground current
External tank temperature sensors
Consider the areas of concern where additional monitoring may assist with life extensions
SVC Plus IGBT container thermal monitoring of ambient temperature trending with MVAR outputs
O&M agreement with manufacturers for modifications
Thermal Management Review and Optimisation
We’ve found that some offshore wind farms have been designed without taking into account thermal issues associated with electrical equipment operating at full capacity where HVAC systems or attenuation are not adequately rated to dissipate the heat generated by static electronic equipment.
Typical Structure as follows: –
SVC Thermal Management
GT Cooling Systems
SGT Cooling Systems
Review and Optimisation as follows: –
IGBT Failure Analysis
Alarm and tripping investigations and solutions
Smart online monitoring analysis
Evaluation of transformer monitoring results
Specialist grid connection consultancy services:
Renewable energy conceptual designs to integrate the renewable energy system into the existing building / manufacturing plants electrical system.
Grid connection support for power generation systems for Low Voltage (415V), Medium Voltage (6.6kV and 11kV), High Voltage from 33kV up to 132kV grid connections.
Grid connection application forms.
Transformer energisation studies.
Subsea cable specifications.
G99 Grid Code Compliance Studies
Energy efficiency calculations.
Feed in Tariff revenue calculations.
Soil resistivity testing.
Reactive and active power flow studies (kVAr and kW).
Earthing solutions for substations and power generation equipment.
Solution provider for onshore and offshore condition monitoring equipment.
Engineering & design:
Due to the high capital expenditure costs associated with renewable generation technology EPS can provide you with a cost effective electrical design for your installation. Typical documentation EPS has provided to previous renewable energy installations include:
Design & Installation of DTS cable monitoring systems.
Substation and plant layout drawings.
Electrical protection calculations for both LV and HV equipment.
Substation lighting and small power supplies.
Earthing and lightning conductor design.
High Voltage and Low Voltage equipment specifications.
Cable routing drawings.
Cable calculations for both Low Voltage and High Voltage cable networks.
Bill of Materials.
Project capital cost estimates.
Specialist Consultancy:
Using electrical engineering software such as SKM Power Tools, ETAP, ERACs, IPSA or DigSILENT our electrical engineers can provide you with a study report for your power system.
Whether it’s a power system study for the entire wind farm, solar farm, hydro electrical distribution system or a modification / addition to the electrical system EPS can provide you with the following technical services:
Power System Modelling & Investigative Analysis
Typical studies (but not exhaustive) as follows: –
Transformer energisation studies.
Load flow analysis studies.
Short circuit studies.
Transient Motor Starting Studies.
Harmonic analysis.
Protection co-ordination.
Arc Flash Assessments and switchgear risk assessments.
Electrical thermal imaging survey reports.
Additional services:
Attend meeting with the DNO (Distributed Network Operator), SSE, Scottish Hydro, Northern Powergrid, Western Power etc.
Provide solutions to grid connection issues.
Offshore and onshore surveys.
Factory Acceptance Testing.
Mechanical and electrical thermal imaging reports for wind turbine machinery, gearboxes, braking systems, generator, electrical equipment (onshore and offshore).
Typical projects:
Whether your project is an offshore or onshore installation we have the expertise and experience to drive your project forward no matter how large or how small:
Nacelle, tower, platform lighting or warning beacon.
LV or HV grid connection (wind turbine, solar farm, hydro, anaerobic digestion plant, bio diesel).
Auxiliary supplies to retrofit equipment.
Grid connection of auxiliary loads.
Onshore outdoor / indoor plant lighting and small power.
HV and LV electrical protection co-ordination.
Modification to existing electrical installations.
Additional power generation plant to existing network.
