• Home
        • Generation
        • Aurora works across a wide range of traditional power generation systems, from small CHP units up to large industrial power generation facilities. We have extensive experience in considering synchronous generators fault contribution into the network, as well as considering issues such as dynamic response and transient stability of synchronous generators.

        • Renewables & Energy Storage
        • Aurora provides a range of services to the Renewables and Battery Energy Storage Systems industries, and can provide advice on analysis on greenfield developments or integration into existing brownfield industrial facilities. We specialise in providing grid simulation and G99 compliance studies to support renewable connections to the UK network, and other European networks.

        • Transmission & Distribution
        • Aurora has extensive experience in the transmission and distribution sector, dealing with private 11kV and 33kV networks, iDNOs and DNOs and National Grid, for a variety of different design and analysis applications.

        • Oil, Gas and Petrochemical
        • Aurora has extensive experience in the Oil & Gas industry, and has undertaken a wide range of design activities, concept studies and simulation studies to support many large international EPC companies and service companies.

        • Industrial
        • Aurora works in light and heavy industry providing a range of services to help plant owners analyse and understand their networks, identify weak spots, providing guidance on system loadings, fault levels, earthing, protection coordination and arc flash.

        • Data Centres
        • Aurora has worked on a number of large data centres, providing a range of services to support existing specialist companies in this area, such as system analysis for fault levels, harmonic analysis, protection coordination and arc flash analysis.

        • Building Services
        • Aurora works in Building Services industry to support multiple M&E contractors in development of the HV aspects of their design, or integration of renewable technologies like roof top solar.  Services include system analysis for fault levels, harmonic analysis, protection coordination and arc flash analysis.

        • Water
        • Aurora has extensive experience in the water industry and has worked fs, identify weak spots, providing guidance on system loadings, fault levels, protection coordination, motor starting earthing and arc flash. We also have extensive experience in helping water companies integrating renewalbe power and battery storge technologies into their sites.

        • Power System Analysis
        • Load flow, fault analysis, P28/2 voltage disturbance including flicker and transformer inrush, G5.5 Harmonics, G99 Grid studies, protection coordination, arc flash, dynamic and transient studies and electromagnetic transients.

        • Power System Design
        • Concept selection, contingency analysis, switchgear and transformer specification, SLD preparation, cable sizing, UPS sizing, substation layouts, protection scheme design, wiring modifications for EPC and M&E companies.

        • Power System Earthing
        • Earth potential rise (EPR) calculations and touch and step voltage calculations with either CDEGS or XGSLab, earthing layouts, soil resistivity testing, fall of potential tests, earthing inspections and resistance testing.

        • Power System Consultancy
        • Concept development and decarbonisation strategies, preparations of G99 and National Grid connection applications, review of ICP and vendor proposals, due diligence checks and client representative and failure investigations.

  • Case Studies
        • Team
        • As a consultancy our people are our greatest assets. Please follow the link above to meet the Aurora Team and find out more about us.

        • Careers
        • Are you interested in power system studies and analysis? Would you like to work for Aurora? If so click the above link to see our current vacancies.

  • News
  • Contact

News

April 1

SPE Electrical have finished a major rebranding exercise and are now called Aurora Power Consulting. This change of name has been carefully developed over the last few months, and we think better refl...

May 24

Grid Connected Battery Energy Storage Systems – Dynamic Containment Part 1: Introduction This post is a follow on to our previous post, which discussed battery energy storage in general, and its app...

May 23

Aurora Power Consulting are an ETAP Official Partner Again! Aurora are pleased to announce that once again we are an official partner company of Operations Technology Inc., who produce the industry le...

May 23

Battery Energy Storage Systems - Power Arbitrage Part 1: Introduction Battery Energy Storage Schemes are very versatile plants and can be used for a number of different services, depending on the plan...

February 19

One of of our other exciting projects that has kicked off this year is the to provide a full suite of ETAP power system studies to GSYS for the Sarsang development in Kazakhstan; this small but highly...

February 19

Its a been a busy January and February with lots of new jobs starting; but one we would particularly like to showcase is our involvement on the new RWE Cowes Power Station black starting project. The ...

December 15

The UK government has just published its 2020 Energy White Paper titled ‘Powering Our Net Zero Future’, outlining its plans for decarbonizing the UK by 2050. In this post I will try and pull out ...

December 5

We have recently finished a project to upgrade our website, to help improve the overall user experience. A thank you and hat-tip to Sam Becketts for carrying out all the design and hard work. The webs...

December 5

We are please to announce that we have finally achieved ISO 9001 accreditation. This important milestone will benefit both Aurora and out customers, as the developments in our quality management syste...

October 21

Electrical Reliability - An Introduction Electrical Reliability is something that tends to be talked about often in electrical design, but usually only in general terms like an N-1 outage or an N-2 ou...

July 5

Harmonics - ENA G5/5 Stage 3 This is a follow up to my post from the 17th June 2020, dealing with the new ENA G5/5 harmonics standard. The first post covered some general explanation of the standard a...

June 18

ENA G5/5 The New UK Standard for Harmonics So as of 17th June 2020, G5/4 is now defunct and has been officially replaced with a new standard ENA G5/5. The old G5/4 standard was rather outdated and has...

May 6

ENA G99 - Type C and D Plants and Studies Overview This is a follow up post to my earlier one on G99 system studies.  This time the post focuses on Type C and D plants (>10MW), which are a…

May 5

Aurora are usually busy working for our customers, but when we get chance we like to write useful technical articles on PowerSystems to help developers and clients. Please look at our Technical News p...

May 5

ENA G99 Type B Plant and Studies Overview ENA G99 has been with us for just over a year now and I think its fair to say it has been a bit of a rocky road so far. We are…

August 12

This article repeats one we have just posted on LinkedIn. So now that the dust has settled a bit after Friday’s UK Blackout ‘event’, what do we know and what have we learnt? I have put together ...

July 31

What is a Generator Export Limitation Scheme (ELS)? At Aurora Power Consulting we have been approach by a number of Clients looking for help on Generation constraint system, Export Limitation Scheme (...

January 7

DNO Network Reinforcement - A Rough Developers Guide Developers adding generation to the UK distribution network will be aware of the schedule problems and costs of the DNO's connections, and in many ...

January 2

Battery Storage - Aurora are please to announce that they have been appointed by RED Engineering and AVK to help develop and design an island power system to support construction of a new battery test...

January 2

Aurora are pleased to announce that they have been appointed by E & I Engineering (Ireland), to carry out an arc flash study and fault level verification for a new data centre, located in Berlin, ...

January 2

Aurora are pleased to announce that they have been appointed by Associated Technology Partners / Green Power Generators, to help roll out new embedded LV generators, running on bio-diesel to 8 existin...

December 7

The New ENA earthing standards have finally arrived after a very lengthy consultation process. The two new documents issued are ENA 41-24 and ENA S34. For those of you not too familiar with this stand...

August 23

Are Your Generation Projects Ready for G98 and G99? If you work in power generation in the UK, whether that is thermal, solar, wind, hydro or any of the other technologies. You are probably aware that...

August 8

Aurora are pleased to announce that they have now been responsible for helping to connect over 50MW of renewable energy to the UK electrical transmission network. This figure has been achieved though ...

August 8

Aurora are pleased to announce that they have been selected by Ethical Power to carry out the HV design and a series of power system studies for the new Netley North PV 3.2MW solar array extension of ...

August 8

Aurora are pleased to announce that they have been selected by Enisca to carry out an HV earthing study for a project upgrade at the Chertsey Water Treatment Plant in Chertsey, London. As part of the ...

August 8

Aurora are pleased to announce that they have been selected by PSC to carry out a series of power system studies for a new 5MW PV Solar array at the Lower Ninestones site in Cornwall, UK. As part of A...

August 8

Aurora are pleased to announce that they have been selected by Thameswey to carry out a detailed short circuit study and protection coordination study for the Woking town centre electrical HV distribu...

August 8

Aurora are pleased to announce that they have been selected by Fabri Consulting to carry out the HV design aspect of a 'Select' stage study, for an electrical upgrade project at the Shell Haven Termin...

August 8

Aurora are pleased to announce that they have been appointed by Wavehub, to carry out a safety audit on their key operational site in Cornwall. The Wavehub project is a unique in the UK, and provides ...

June 9

This is a short post about the key ideas of 132kV design practices, too finish off the last of this series. In the UK, 132kV is the standard primary transmission voltage operated by the DNOs (it is al...

May 10

This is a short post about the key ideas of 33kV design practices. In the UK, 33kV is the standard primary distribution voltage, but for the most part is owned and operated by the DNO - some larger co...

May 10

This is a short post about the key ideas of 11kV design practices. In the UK, 11kV is the standard secondary distribution voltage (a few places have 6.6kV - and this can be thought if as almost ident...

May 10

Aurora are pleased to announce that they have been appointed by Trant Engineering, to assist with the electrical design of the new Energy From Waste facility, located in the Isle of Wight. Aurora's sc...

May 9

Aurora are please to announce that they have setup and ongoing support based contract with EcoDev Group, in order to provide specialist technical advice and services on a call off basis. The aim of th...

May 9

Aurora are pleased to announce that they have been selected by UCP Choice to carry out a series of power system studies for a new 8MW STOR project at Cavendish Road, Stevenage. As part of Aurora's sco...

April 24

Aurora is pleased to announce that they have been appointed by Energy Assets to carry out a high level earthing study to support installation of a new secondary 11kV substation in Glasgow - Park Quadr...

April 24

Aurora is pleased to announce that it has been awarded two projects with Costain to carry out a variety of  HV and ETAP design and studies activities for the Wyelands WTW (Water Treatment Works) site...

April 9

Aurora is pleased to announce that we have successfully completed registration on the UVDB Achilles database. This will allow Aurora to help provide services to larger more established utility compani...

April 9

Aurora is pleased to announce that we will be attending Utility Week Live 2018 this year! For those of you who are not familiar with the utility week live expo - it is one of the main calendar events ...

March 28

Exciting news - Aurora is in the process of moving office into a dedicated new office in Poundbury, Dorchester. This office will give us some much needed space for the expansion of the business, and a...

March 26

How Can an Electrical Engineering Consultant Help? A question that is often asked by people is: “What does an electrical engineering consultant actually do?”, or " Don't you just write reports?", ...

March 23

Earthing is one of the most complex and poorly understood aspects of power system engineering, with many engineers regarding it as a ‘black art’ or ‘alchemy’. In truth it is not an easy subjec...

March 23

Power System Studies Power system studies, or power system analysis is a critical part in the design process of any HV power system. If the system has not been designed correctly, formal computer anal...

March 23

Power System Analysis Software - Overview A question that we are asked fairly regularly is  ‘What power system analysis software package should I buy / use?’ This seemingly innocuous question, ac...

March 22

Power System Design Power system design from first principles can be a daunting process. This blog has been prepared by Aurora to provide a simple, high level technical resource to describe, in simple...

March 22

Just a short post to advise that over the next few weeks and months we will be updating and reformatting a lot of our blog section. This will involve adding more technical content and diagrams to the ...

March 1

One of our engineers recently attended the Energy Storage Summit, held in Victoria Plaza Hotel, London and thought it would be interesting to give people an overview of the summit. The first, and most...

February 8

Carrying out an earthing study is usually of key importance to any new installation project and is usually a mandatory requirement. It is important to recognise that while the phrase 'earthing study' ...

February 7

Aurora is pleased to announce that it has recently purchased a Megger Det 2/2 earth tester and associated test reels and cables. Previously Aurora had subcontracted soil resistivity surveys to local c...

January 16

High Voltage Engineers, Aurora are pleased to announce that they have been appointed by Capita to carry out a series of power system studies for a large HV network upgrade, for a key strategic site in...

November 28

Aurora is pleased to announce that the company has been appointed by Rosebery and MakPower to carry out a range of detailed design activities and studies for a new 7.5MW STOR generation project. Auror...

November 28

Aurora is pleased to announce that the company has been appointed by Edward Dewhurst Ltd. to carry out a protection coordination study for a major electrical upgrade at the Barrow in Furness general h...

November 28

Aurora is pleased to announce that it has been selected by AICA / Costain to carry out a detailed CDEGS earthing design study as part of a major upgrade at the Wyelands WTW operated by Severn Trent Wa...

November 28

Aurora is pleased to announce that they have been selected by Lark Energy to carry out a range of power system studies for a new 7.5MW STOR (Short Term Operating Reserve) project at Pye Bridge, Derbys...

September 27

The Short Circuit Study IEC 60909 / ENA G74 An IEC 60909 /  G74 short circuit study refers to the process of determining the fault levels (commonly called short circuit levels) in an electrical power...

September 23

Aurora is pleased to announce that it has just invested in a new license module for the well known protection software AMTECH Protect. This industry leading protection coordination programs fits nicel...

September 23

Aurora is pleased to announce that the company has invested in additional license modules for the industry leading earthing design software CDEGS for use by its highly specialised CDEGS consultants. A...

September 23

Aurora is pleased to announce that they have been selected by Polypipe to carry out an electrical site survey of their production facility in Kent. The aim of the survey is to fully identify the confi...

September 23

Aurora is pleased to announce that the company has been selected by Rappa Fencing to carry out a design review of their existing facility to advise on the need for potential increase of power capacity...

September 23

Aurora is pleased to announce that the company has been selected by UCP Choice to carry out a range of power system studies for two new 5MW STOR (Short Term Operating Reserve) projects at Finway and E...

July 26

Aurora Power Consulting is pleased to now be able to offer insulation coordination studies to our clients! We have recently started working with an expert in this field who has a detailed understandin...

July 25

An interesting development over the last decade or so, is the rising importance of arc flash studies. There is a variety of reasons for this, but it is mainly due to the recognition that arcing faults...

July 18

Aurora is pleased to announce that they have been appointed by Storengy (Stublach), to carry out a range of power system studies to assess the impact of adding two new 9.4MW gas injection compressors,...

July 18

Aurora are please to announce that they have been appointed by Aptus Utilities Ltd., to carry out a range of earthing studies to ENA 41-24 for several different sites. Aurora will carry out the design...

July 18

Aurora is please to announce that it has been appointed by Edward Dewhurst Ltd., to carry out a range of earthing studies to ENA 41-24 and BS EN 50522 for several different sites. Aurora will carry ou...

July 18

Aurora is pleased to announce one of its new projects - Windcare.  Aurora has been appointed by Windcare to carry out some additional studies for two new wind turbine projects they are developing. Th...

April 19

A G5/4 study (also called a G5.4 study) is shorthand for the name of a standard produced by the Electrical Networks Associate (ENA) called  G5/4 ‘Planning Levels For Harmonic Voltage Distortion And...

April 19

So what is a P29 study? A P29 study is shorthand for the name of a standard produced by the Electrical Networks Associate (ENA) called  P28 ‘Planning Limits For Voltage Unbalance’. This study is ...

March 21

P28 Studies As the post title suggests, one of the common requests from DNO is for a 'P28 study', to assess the impact of disturbing loads on the network. The title 'P28 study' comes from the Electric...

March 21

EMTP consultancy, Aurora is pleased to announce that it has recently invested in the EMTP-RV software simulation package produced by Powersys in France. This highly sophisticated electromagnetic analy...

March 21

Aurora is pleased to announce that they have been appointed by Gildemeister Energy to carry out a series of power system studies for a new 3.2MW solar photovoltaic (PV) array at  Wick Lane. Aurora wi...

February 27

We have decided to start writing a new Aurora Power Consulting blog, which we hope may be of interest to our customers (new and existing). The aim of the blog will be to discuss at a high level, some ...

February 17

Aurora is pleased to announce that they have been appointed by Huntec Energy Solutions to carry out a series of power system studies for a new 4MW solar photovoltaic (PV) array at  Haigh Hall. Aurora...

February 17

Aurora is pleased to announce that it has been appointed by UCP Choice to carry out a series of power system studies (G5.4 Stage 3 harmonic assessment) for a new 4MW solar photovoltaic (PV) array at ...

December 20

Aurora is pleased to announce that it has invested in the Digsilent Power Factory software package, in response to our customers needs and the requirements for the UK DNOs. While Aurora prefers to use...

December 20

Aurora is pleased to announce that they have been appointed by ENERG to undertake an earthing study for a new 11kV RMU and 850kW generator as part of a new CHP installation project at Poole Hospital. ...

November 15

Aurora is pleased to announce that we have been awarded a series of studies for the new 4.5MW wind farm at Keith Hill in Edinburgh. This is an interesting new project to install 5x 900kW EWT wind turb...

September 6

Just a quick announcement to confirm that Aurora Power Consulting will be moving into new office at the Wincombe Business Centre in Shaftesbury. This is a large business park with good infrastructure ...

September 5

Aurora is pleased to announce that the company has been appointed by Heidra to help develop all the electrical aspects of a new small hydro power scheme in Merrivale, UK as well as other potential fut...

September 5

Aurora Power Consulting is pleased to have been appointed by Farmwind, to undertake a P28 study for a transformer energisation, as part of a new 500kW wind turbine at Scot Proteins, in Aberdeenshire. ...

July 27

Aurora is pleased to announce that we have just upgraded our ETAP license to include the renewable energy modules and increased the overall system capability to a 300 busbar version. The increase in b...

July 27

Asymmetric Switching Duty for High-Voltage Circuit-Breakers Aurora is pleased to announce that our technical paper (see the 4th of April post) on asymmetric switching duty for high-voltage circuit-bre...

June 22

Aurora is pleased to announce that they have been appointed by Power For Wales to undertake a series of earthing studies for 2 different 1.5MW solar farms in South Wales. Aurora will coordinate the si...

June 22

Aurora is pleased to announce that they have been appointed by Fortress Recycling, to coordinate the electrical DNO connection process to WPD's 11kV electrical network. Aurora's role is to take the in...

June 22

DNO approval specialists, Aurora, is pleased to announce that they have been appointed by Huntec Energy to undertake a series of studies for a new 5MW solar farm at Pollington in the UK. Aurora will u...

June 8

Aurora is pleased to announce that the company has recently purchased a license for CDEGS MultiGround from SES Technology. The MultiGround package includes the RESAP, FCDIST and MALT modules, which ar...

June 8

Aurora is pleased to announce that they have been appointed by Prescient Power to investigate a series of protection mal-operation trips on a new 500kW Solar Farm that has recently been installed. Pre...

June 8

Aurora is pleased to announce that the company has been chosen by Kinwell to help coordinate the provision of a new electrical DNO connection to an existing stone yard and industrial complex. The exis...

May 13

We have officially changed our name to Aurora Power Consulting Ltd. The company was originally formed just over 9 years ago, as Sommerville Power Engineering Ltd., to focus on providing electrical ser...

May 6

Aurora is pleased to announce that they have recently joined the Renewable Energy Association (REA). The REA is one of the major renewable organisations in the UK, and provides a strong and compelling...

April 4

Aurora is delighted to have been approached by the IET to prepare a technical paper for a new Engineering & Technology and Reference (ETR) service. Aurora have proposed to prepare a technical pape...

March 11

Windcare has just appointed Aurora to undertake two new earthing studies for a couple of new 500kWe wind turbine sites in the UK. Undertaking these kind of earthing studies is always interesting as sm...

February 5

Earthing design PV farms - Aurora has just been appointed by Cenin Renewables to undertake two earthing studies for some new solar farms that they are developing. One of the PV farms will be connected...

February 3

Aurora has been appointed by Saga Cruise Lines to undertake a Due Diligence study in relation to the possibility of using 2x 6.5MW, 6.6kV electric propulsion and azimuth drives, to replace the classic...

February 3

Aurora has just finished undertaking a safety review for EirGrid / SONI in relation to a concern raised about the risk of a potential operator error in the Control Room, in relation to a planned upgr...

January 9

Aurora's new website design is now complete, and we think it looks great!  The new layout breaks our services down more clearly and in a more intuitive way, that we think showcases our abilities and ...

January 8

Aurora Power Consulting are in the process of updating our website, as well as re-branding our look, so that we more closely align with our business goals. There will be a lot of changes over the next...

December 1

Aurora Power Consulting have got a new logo! The design was created for us by Tom Blaker over at Black Pen Press, and has a very subtle electrical theme (they dots are electrons!!), while using a colo...

November 8

As an 11kV consultancy, Aurora has just finished undertaking a series of earthing studies for one our clients, which included a particularly challenging earthing design for a rural 11kV substation loc...