NEF Renewables5 th June 03HEF Conference Solar Energy NEF Renewables A Department of The National Energy Foundation Gareth Ellis Manager

NEF Renewables5 th June 03HEF Conference 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…..

NEF Renewables5 th June 03HEF Conference NEF Renewables 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 Secretariat for STA Secretariat for PV-UK

NEF Renewables5 th June 03HEF Conference Solar Trade Association and PV-UK Handle enquiries: phone, , post, in person Mail out information, members list General admin, meeting rooms, legal advice, web site, newsletter Promotion of solar energy

NEF Renewables5 th June 03HEF Conference 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.

NEF Renewables5 th June 03HEF Conference Solar Resource Between 900 and 1300 KWh/m 2 per year Enough roof space to generate current electricity demand

NEF Renewables5 th June 03HEF Conference Solar Panels Photovoltaics (PV) or Solar Water Heating?

NEF Renewables5 th June 03HEF Conference Solar Water Heating 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

NEF Renewables5 th June 03HEF Conference Collector principles Conduction loss Radiation loss Convection loss Reflection loss Solar light Useful Energy Insulation Housing Absorber Transparent cover Heat transport liquid Solar collector Heat flow

NEF Renewables5 th June 03HEF Conference Solar Water Heating FLAT PLATE COLLECTORS

NEF Renewables5 th June 03HEF Conference Solar Water Heating EVACUATED TUBE COLLECTORS

NEF Renewables5 th June 03HEF Conference Typical solar water heating system layout for a house

NEF Renewables5 th June 03HEF Conference

NEF Renewables5 th June 03HEF Conference Sunlight in Western Europe JanFebMarAprMayJunJulAugSepOctNovDec kWh/m²/day Useful for solar collector

NEF Renewables5 th June 03HEF Conference Orientation and inclination Relative yearly performance (%) NorthWestSouthEastNorth NWSWSENE ° 30° 45° 60° 90°

NEF Renewables5 th June 03HEF Conference System Design

NEF Renewables5 th June 03HEF Conference 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

NEF Renewables5 th June 03HEF Conference 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 Desirable: Solar Water Heating Things to look for:

NEF Renewables5 th June 03HEF Conference Water heating with storage Roof or other space facing somewhere between east and west but not in shadow Solar Water Heating Things to look for: Essential:

NEF Renewables5 th June 03HEF Conference Solar Water Heating 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

NEF Renewables5 th June 03HEF Conference Cumulative Surface of Solar Heating Collectors in Europe in 1998 (in m 2 )

NEF Renewables5 th June 03HEF Conference Number of SWH Collectors installed in 1998 for 1000 inhabitants in Europe

NEF Renewables5 th June 03HEF Conference

NEF Renewables5 th June 03HEF Conference Self Build Solar Self Build Solar Water Heating Systems –Reduce costs –Stimulate solar industry –Create jobs

NEF Renewables5 th June 03HEF Conference AEE - Arbeitsgemeinschaft Erneuerbare Energie Non profit organisation working to promote renewable energy in Austria First self build groups formed Concept transferred to Switzerland, Germany, Italy and Eastern Europe Transferred to UK, Portugal and Finland AEE Headquarters, Gleisdorf

NEF Renewables5 th June 03HEF Conference

NEF Renewables5 th June 03HEF Conference

NEF Renewables5 th June 03HEF Conference

NEF Renewables 5 March, 2003 Renewable Energy Training

NEF Renewables5 th June 03HEF Conference '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 Photovoltaics

NEF Renewables5 th June 03HEF Conference Different Types of Solar Cells Monocrystalline Most efficient Polycrystalline Very efficient Amorphous Cheapest

NEF Renewables5 th June 03HEF Conference Different Types of Solar Cells

NEF Renewables5 th June 03HEF Conference Type of systems Grid Connected Off-Grid

NEF Renewables5 th June 03HEF Conference Measures between 15-30m 2 2 to 4 kWp Generates between 1,500 to 3,000 kWh per year (multiply by 750) Typical Grid Connected System

NEF Renewables5 th June 03HEF Conference Grid Connected

NEF Renewables5 th June 03HEF Conference Oxford Oxford 4 kWp of PV Costing £25,000 4 kWp of PV Costing £25,000 Produces slightly more electricity than house uses (around 3,000 to 3,500 kWh/annum) Produces slightly more electricity than house uses (around 3,000 to 3,500 kWh/annum)

NEF Renewables5 th June 03HEF Conference Laing Homes Development SunslatesTM Area covered: 10 m 2 to 24 m 2 Supply between 35% and 70% of each household's electricity needs

NEF Renewables5 th June 03HEF Conference Atterbury Village Large new-build development: 17 PV systems (36.7 kWp)

NEF Renewables5 th June 03HEF Conference PV Facades Blue PV facade, Doxford Business Park.

NEF Renewables5 th June 03HEF Conference Production Cost TechnologyCost/WpEfficiencyCost/m 2 Monocrystalline silicon Polycrystalline silicon Amorphous silicon Cadmium Telluride Copper Indium Diselenide Marble cladding material £ 3.50 £ £ £ 3.50 £ % 8-12 % 4-6 % 7% 9% £ 525 £ £ £ 250 £ 360 £

NEF Renewables5 th June 03HEF Conference Installed Cost £6-7/Watt 2kWp system: £12-14K A grant is now available:

NEF Renewables5 th June 03HEF Conference Satellites Calculator Navigation bouys Boats Buildings Lighting Car park ticket machines And so on……… Off Grid Applications

NEF Renewables5 th June 03HEF Conference Street Furniture Bus Shelter Parking meter

NEF Renewables5 th June 03HEF Conference PV can power electricity for street lights removing need for cable laying in street. Street Lighting

NEF Renewables5 th June 03HEF Conference PV equipment allows power on the move for today’s mobile electronic appliances Small Scale

NEF Renewables5 th June 03HEF Conference Security light and alarm For security

NEF Renewables5 th June 03HEF Conference Garden light Solar fountain Solar ventilator For the garden…

NEF Renewables5 th June 03HEF Conference PV-Domsys 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 Encourage the take-up of photovoltaic (solar electric) systems in the South East Region at a domestic level

NEF Renewables5 th June 03HEF Conference Grants for Solar Energy Solar PV Grants Solar Thermal Grants

NEF Renewables5 th June 03HEF Conference Level of PV Grant £20 million over 3 years Public bodies, L.A.s, housing associations 60% SMEs and homes 50% Large profit making organisations40%

NEF Renewables5 th June 03HEF Conference PV Grant Stream 1 – individual/small applications 500Wp to 5kWp Stream 2 – large scale domestic or non domestic of 5kWp to 100kWp dealt with in three-monthly tranches. Grid connected BIPV on new and refurbished buildings, both domestic and non domestic Also non integrated retrofit installations

NEF Renewables5 th June 03HEF Conference PV Targets 3,000 domestic/small installations (6 MW) –1500 Stream 1 –1500 Stream 2 clusters at 140 sites 140 medium or large scale non domestic installations (3 MW) (Stream 2) Training and accreditation for 250 installers

NEF Renewables5 th June 03HEF Conference Clear Skies – Solar Thermal Community Grants –lower of 50% of installed cost or £100k regardless of technology Feasibility studies –75% of costs (max £10k)

NEF Renewables5 th June 03HEF Conference Household –Solar thermal£500 –Wind£1000 per kWe (max £5,000, min 0.5 kWe) –Micro hydroSame as wind –GSHP£1,200 –Automated wood pellet stoves£600 –Wood fuelled boilers£50 per kWth (max £1,500) Technologies & grant levels