Design, Analysis & Consultancy

Our Approach

SPE Electrical are based in Dorset, in the South West, but serve the whole of the UK as well as many international clients! The company was created in early 2006, in recognition of the rapidly expanding infrastructure and energy sectors, and the associated need for specialist HV consultancy services. To date our power system consultants have undertaken a wide range of studies for a variety of local, national and international clients.

As a company we specialise in all aspects of design, analysis and consultancy that relate to large power system and have design experience from low voltage to 400kV! We are also well versed in international design standards and practices such as IEC, ANSI, IEEE, NEC and NFPA, and our engineers have worked on projects all around the globe.

As well as consulting for many large business, we provide support and guidance to Small and Medium Enterprises (SMEs), and help them to grow their business, by allowing them to tackle bigger and more complex projects without the need of having to recruit additional specialist staff.

We have a unique ethos and business model, which we believe gives us both a technical and commercial advantage over many of our rivals, as well as helping to improve our Clients’ satisfaction. For more details about our approach, please see our philosophy.

We are fully covered by professional indemnity insurance, which includes design activities for building services, critical services, water, data centres, oil & gas plants, refinery and other similar high risk environments.

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A Partnership Approach

We Work With You

At SPE we adopt a partnership approach where we work with you, to help your business grow – we believe that the best way to grow our business, is by helping you grow your business.  At SPE our core values are competency, professionalism, honesty and integrity.

SPE Electrical has an innovative business model, which is very different to many other consultancies. We have a small core team of full time power system consultants and a pool of semi-retired, highly experienced specialists who work for us on a flexible, part-time basis, allowing us to call-off expert resources as needed. This allows SPE to run a streamlined organisation, with low costs, which in turn allows us to put in very competitive prices for even complex technical projects.

We don’t believe in trying to overcharge our clients for unnecessary studies, and tailor all our proposals to meet our clients needs. Short term profit is never a priority for SPE and instead we believe in working together and building long lasting partnerships. We don’t believe in under-quoting to the win the project and then trying to claim lots variations to contract scope in order to increase our profits. Our prices are fair, competitive, have clearly defined scope and don’t have hidden extras. SPE prides itself in understanding our clients needs, and ensure that all reports are clear and easy to read, with practical recommendations on the most appropriate course of action.

We want our clients to feel free to pick up the phone and call us for advice on any technical issue, regardless of whether we have a live contract with them or not. In many cases we have been able to answer a clients technical question without even undertaking a study, and are happy to provide quick informal advice for free.

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The Team

Expert Power System Consultants

Our Engineers

  • Stephen Sommerville


    Stephen Sommerville is the Director of SPE Electrical. He has over 18 years of experience in HV power systems, gained from working in a number of different industries. Stephen is a specialist in power system studies and HV earthing. He has a broad range of knowledge in a wide range of packages such as DigSILENT, ETAP, SKM, EMTP, CDEGS, PSCAD & AMTECH. As well as system studies, Stephen also has expert knowledge in power system protection and control, substation automation (IEC 61850), large VSDs as well as HV and EHV transmission systems technology and is also our resident earthing specialist.

  • Mark Horrocks

    Engineering Manager

    Mark Horrocks is SPE's Engineering Manager and a specialist in power system studies. He has over thirteen years’ experience in electrical power system analysis, electrical design, power system studies (power quality), arc flash safety, marine electrical systems, fault finding and the development of practical solutions for complex issues. Mark is an expert user of DigSilent PowerFactory, and always keen to develop his skills and knowledge in the field of system studies. Mark is an active member of the engineering community and sits on a number of key committees in the UK for Distribution Code and other key standards.

  • John Portess

    Senior Consultant

    John Portess is a Senior Consultant with over 40 years' experience. He has over forty years experience in electrical generation, distribution and electrical services design, specification, procurement and installation. He is conversant with current techniques for distribution network loadflow, fault analysis and protection co-ordination and has worked across a wide range of industries and specialisms.

  • Tibor Hoffman

    Associate Senior Consultant

    Tibor Hoffman is an Associate Senior Consultant with over 15 years' experience gain in the mining, oil & gas and industrial sectors. He is a specialist in power system studies and has experience in both ETAP and SKM Powertools. Tibor has carried out a wide range of studies and has experience in numerous different study types.

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