Giuliano digilio the prosperous future and business opportunities for electrical contractors
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Transcript of Giuliano digilio the prosperous future and business opportunities for electrical contractors
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The Prosperous Future and Business Opportunities for Electrical Contractors
Giuliano Digilio
ECA Head of Technical Services
London – 22 June 2010
UK Solar PV Conference
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About the ECA
• The UK’s leading trade association representing the interests of electrotechnical contractors
• Formed in 1901, the ECA has over 3,000 member companies
• Collectively, ECA member companies: • Generate an annual turnover of £5.5 billion • Employ some 30,000 people and support 8,000 apprentices
in training • Undertake the greater part of all the recorded electrical
installation work in the UK.
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Scope of Presentation
• Electrical contractors’ perspective, challenges and opportunities • Promotion of new PV technology • Planning issues • Design issues • Installation issues • Inspection, testing and commissioning • Training and up-skilling • Technical support and guidance
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Photovoltaics create many Challenges & Opportunities
The electrical contractor has been blessed with a flood of new technology which introduces challenges and
opportunities. One of these new technologies is photovoltaic systems.
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What is a Solar PV System?
• Solar PV systems convert light energy into renewable electricity.
• The electricity generated is fed straight into the electrical installation of the building and is used to power electrical services and appliances.
• Solar PV systems should not be confused with solar hot water (or solar thermal) systems which provide hot water.
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Benefits to Clients
• Climate change / sustainable agendas • Renewable energy • Legislation • Planning pressures • Available grants • Feed-in tariffs • Energy cost savings • Pay-back is improving
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There are many good reasons why electrical contractors should promote
the use of solar PV systems:
• Easily fitted to most buildings – retrofit or new build • Reliable and practically maintenance-free • PV modules typically offer a 25-year performance
warranty (life expectancy is 50 years) • Clients benefit from generous capital grants • Clients benefit from cheaper energy costs • Meets climate change and sustainability agendas
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Promotion of PV Technology
• Electrical contractors must better promote their skills and services
• Understand the technology • Core skills for electrical installations • Training and up-skilling • Guidance and technical support • Marketing skills and support
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Design Team Member
Early involvement of the electrical contractor and better coordination of
sub-contractors is essential to ensure good compliant installations.
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Planning Issues
• Planning application • National Building Regulations • EU legislation/directives • Liaise with Building Control and Fire Officer • Health and safety risk assessment (CDM & FSO in UK) • Utility requirements • Available grant / funding • Type of system connection
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Design Issues
• Competent designer (electrical engineer) • Interface with architect and structural engineer • Orientation, pitch, shading and space planning • Designer’s risk assessment • System sizing • Grid connected / off-grid system • Feed-in tariff • Structural support / fixing system • National standards and legislation • Switchgear • Lightning protection
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Installation Issues
• Competent operatives/management • Installation programme • Interface with main contractor • Early builder’s work information • Sub-contract package interface • Site-based risk assessment • Damage, protection and theft • Lightning protection and earthing • Grid connection and interface with utility company • National standards and legislation • Inspection, testing and commissioning
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Commissioning • All electrical installations including
PV systems should be inspected, tested and commissioned by a competent person and the relative certification/documentation should be issued in accordance with national standards and legislation.
• Operation and maintenance documentation must be provided by the installer for the person that ordered the work.
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National Standards and Legislation
BS 7671 Wiring Regulations Building Regulations Industry Guide
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Conclusion
• Electrical contractors do have the core skills, but they will need to up-skill and include PV system solutions within their scope in the future.
• Electrical contractors will need technical support and guidance from the PV equipment manufacturers, suppliers and their association.
• If electrical contractors do not embrace the opportunities offered to them by PV systems and other new technologies in the future, others will.
• Early involvement and good coordination is essential.
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Thank you for your attention
Giuliano Digilio
ECA Head of Technical Services
www.eca.co.uk