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Gareth Ellis Manager

Gareth Ellis Manager. Solar Energy. NEF Renewables A Department of The National Energy Foundation. NEF Renewables . NEF Renewables will promote and raise awareness of renewable forms of energy; highlight their importance for a sustainable future;

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Gareth Ellis Manager

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  1. Gareth EllisManager Solar Energy NEF Renewables A Department of The National Energy Foundation

  2. NEF Renewables NEF Renewables will promote and raise awareness of renewable forms of energy; highlight their importance for a sustainable future; and encourage their development in an appropriate way, through specific education and information programmes and services. The National Energy Foundation is an Educational Charity based in Milton Keynes promoting the better use of energy. In 1995 it began to provide an information service on renewable energy…..

  3. Specialise in Domestic Renewables Community Renewables Local Policy & Planning Examples RE for the Home SELFSOL PV DomSys REST Logpile CRI East LA21 Cambs, Oxon, MK, Leics, Beds MK Energy Strategy Elstow New Settlement Community Wind Lincolnshire NEF Renewables Secretariat for STA Secretariat for PV-UK

  4. Solar Trade Associationand PV-UK • Handle enquiries: phone, email, post, in person • Mail out information, members list • General admin, meeting rooms, legal advice, web site, newsletter • Promotion of solar energy

  5. Community Renewables Initiative • The Community Renewables Initiative Countryside Agency with funding from DTI. • 10 Local Support Teams throughout England • Providing advice and support for community based renewable energy projects. • CRI-East is the partnership of organisations providing the Local Support Team for the East of England Region. • CRI-East includes The National Energy Foundation (NEF), Peterborough Environmental City Trust (PECT) and Writtle College. www.cri-east.org.uk

  6. Solar Resource Between 900 and 1300 KWh/m2 per year Enough roof space to generate current electricity demand

  7. Solar Panels Photovoltaics (PV) or Solar Water Heating?

  8. Useful in the UK for contribution towards domestic hot water (50%) Space heating technically feasible but usually uneconomic in UK Two main types of collector Flat Plate Evacuated Tube Solar Water Heating

  9. Transparent cover Absorber Heat transport liquid Insulation Housing Solar collector Convection loss Radiation loss Reflection loss Useful Energy Solar light Conduction loss Heat flow Collector principles

  10. Solar Water Heating FLAT PLATE COLLECTORS

  11. Solar Water Heating EVACUATED TUBE COLLECTORS

  12. Typical solar water heating system layout for a house

  13. 5 Useful for solar collector 4 kWh/m²/day 3 2 1 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Sunlight in Western Europe

  14. 100 0° 90 80 30° Relative yearly performance (%) 70 45° 60 60° 50 40 90° 30 North West South East North NW SW SE NE Orientation and inclination

  15. Direct system Indirect system Thermo siphon Forced circulation Integrated Collector Storage Secondary heat exchanger Primary heat exchanger Primary heat exchanger System Design

  16. Drainback level Closed Drainback System West European climate conditions - Freezing protection of the collector and piping - Overheating protection of the system - Best price performance - Durability - Requirements on tapwater pollution

  17. Solar Water HeatingThings to look for: Desirable: High hot water use - eg lots of baths Expensive water heating - LPG or electric Willingness to do a bit of DIY Stay around during summer Building house, changing roof or heating system. Done the energy efficiency bit Long term property

  18. Solar Water HeatingThings to look for: Essential: Water heating with storage Roof or other space facing somewhere between east and west but not in shadow

  19. Cost £2,500 to £5,000 Cheaper if installed in new build or where heating system or roof being replaced Typical system covers 3 m to 4 m and produces 1200 kWh of useful heat DIY option Solar Water Heating

  20. Cumulative Surface of Solar Heating Collectors in Europe in 1998 (in m2)

  21. Number of SWH Collectors installed in 1998 for 1000 inhabitants in Europe

  22. Self Build Solar Self Build Solar Water Heating Systems • Reduce costs • Stimulate solar industry • Create jobs

  23. AEE - Arbeitsgemeinschaft Erneuerbare Energie Non profit organisation working to promote renewable energy in Austria • 1983 - First self build groups formed • 1991 - 92 - Concept transferred to Switzerland, Germany, Italy and Eastern Europe • 1998 - Transferred to UK, Portugal and Finland AEE Headquarters, Gleisdorf

  24. Photovoltaics 'photo’ = light ‘voltaic’ = volt Electricity = Electrons Semi-conductors materials can release electrons if exposed to light (ex. Silicon) Today: 98% of PV cells are made of silicon

  25. Different Types of Solar Cells Monocrystalline Most efficient Polycrystalline Very efficient Amorphous Cheapest

  26. Different Types of Solar Cells

  27. Type of systems • Grid Connected • Off-Grid

  28. Typical Grid Connected System • Measures between 15-30m2 • 2 to 4 kWp • Generates between 1,500 to 3,000 kWh per year (multiply by 750)

  29. Grid Connected

  30. Oxford • 4 kWp of PV Costing £25,000 • Produces slightly more electricity than house uses (around 3,000 to 3,500 kWh/annum)

  31. Laing Homes Development • SunslatesTM • Area covered: 10 m2 to 24 m2 • Supply between 35% and 70% of each household's electricity needs

  32. Atterbury Village Large new-build development: 17 PV systems (36.7 kWp)

  33. PV Facades Blue PV facade, Doxford Business Park.

  34. Production Cost

  35. Installed Cost • £6-7/Watt • 2kWp system: £12-14K • A grant is now available: 0800 298 3978 www.solarpvgrants.co.uk

  36. Off Grid Applications • Satellites • Calculator • Navigation bouys • Boats • Buildings • Lighting • Car park ticket machines • And so on………

  37. Street Furniture Parking meter Bus Shelter

  38. Street Lighting PV can power electricity for street lights removing need for cable laying in street.

  39. Small Scale PV equipment allows power on the move for today’s mobile electronic appliances

  40. For security Security light and alarm

  41. For the garden… Solar fountain Solar ventilator Garden light

  42. PV-Domsys Encourage the take-up of photovoltaic (solar electric) systems in the South East Region at a domestic level • Marketing campaign   • Training for planners, building control officers… • Local training for electricians, roofers • Negotiations with local housing developers, electricity companies and financers • Establishing local demonstration projects • Organising exhibitions and presentation evenings • Monitoring of installations

  43. Grants for Solar Energy • Solar PV Grants • www.solarpvgrants.org.uk • 0800 298 3978 • Solar Thermal Grants -www.clear-skies.org -08702 430 930

  44. Level of PV Grant £20 million over 3 years • Public bodies, L.A.s, housing associations 60% • SMEs and homes 50% • Large profit making organisations 40%

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