For more information on Redland visit July 2010 Uniclass L521 Cl/SfB (47) N. Solar PV Tile MCS BBA 0019

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1 July 2010 Uniclass L521 Cl/SfB (47) N For more information on Redland visit SOLAR PHOTOVoltaic GUIDE Solar PV Tile MCS BBA 0019

2 REDLAND SOLAR PV TILES A fully integrated PV solution in a single course of tiles that satisfies specifiers, planning authorities and installers alike with the system designed for good looks and ease of installation. Each PV Tile has been engineered to integrate perfectly with Redland s most popular tiles for the house building market Cambrian Slate, DuoPlain, Mini Stonewold and MockBond Mini Stonewold, Grovebury and Landmark Double Pantile, 50 Double Roman and Landmark Double Roman making Redland the first company in the UK to offer a fully-integrated PV solution for slate, plain tile and profile appearance roofs. Aluminium framing system provides fire resistance and greater durability than plastics used on less robust systems. Extensive testing to ensure weathertightness and resistance to winduplift; backed by superior technical services from the leading worldwide supplier of pitched roofing materials, resulting in our unique 15 year Redland Roof System Guarantee, combined with a 25 year Power Output Guarantee from our PV tile manufacturer. MCS certified eligible for use on Feed-in Tariffs (FIT) schemes. MCS BBA 0019 CONTENTS PV Systems Working Principles 4 Code for Sustainable Homes, Feed-in Tariffs & Guarantees 5 Mini Stonewold and MockBond Mini Stonewold / Grovebury and Landmark Double Pantile / 50 Double Roman and Landmark Double Roman 6 7 Cambrian / DuoPlain 8 9 System Design / Components 10 Pack Sizes and Examples 11 Data Tables 12 PV Technical Services 13 FAQs 14 2 SOLAR Photovoltaic GUIDE

3 Redland is a brand of the worldwide Monier Group. With operations in 46 countries and over 200 production sites, Monier is the leading worldwide supplier of pitched roofing materials. Operating in the UK, our goal is to deliver high-quality roofing solutions that perfectly meet our customers expectations. Harnessing solar energy is one of the most attractive and sustainable means of generating zero carbon, renewable energy for use in buildings. A pitched roof is the ideal surface for solar energy collection for heat and electricity generation. Why Redland? Redland s renewables pre-eminence within the UK roofing industry, draws on the expertise and experience gathered from more than 90 years as an industry leader. In this time, we have developed many innovative solutions, including the first UK roof-integrated photovoltaic (PV) systems launched in In 2008, we added Solar Thermal (ST) to our renewables portfolio. Our range of tiles, slates, renewable energy systems, fittings and accessories, combined with market-leading technical support services, enable us to deliver total pitched roofing solutions you can rely on. Solar PV Tile for slate, plain and profile appearance roofs Our second generation of PV Tiles encompasses five new roof tile specific PV Tiles each developed to match one of our most popular tile ranges used by house builders. Each PV Tile has been designed for performance, ease of installation and good looks and offers significant benefits in all three areas over above the roof panel systems, where poor installation can compromise the roof structure. With a 25 year Power Output Guarantee from our PV tile manufacturer, Redland Solar PV Tile is MCS certified and eligible for use on Feed-in Tariffs Schemes. It is also covered by Redland s 15 year roof system guarantee which assures the durability and weathertightness of the whole roof. SOLAR Photovoltaic GUIDE 3

4 PV SYSTEMS WORKING PRINCIPLES Photovoltaic panels convert daylight into DC (direct current). An inverter turns this DC into the domestically usable 230V 50Hz AC. The installation is connected to the National Grid. As soon as the system starts supplying power, this power will be used in the home first. Any surplus electricity is exported to the National Grid and any shortages are made up from the grid network. Optimum Performance A pitched roof with a slope of between 20º and 50º is the optimum site for a Solar PV system. Installing PV tiles on a south-facing roof will give the best result, but it is also possible to use a roof orientated between east and west. The PV Tiles should not be shaded by high buildings or trees, as this will reduce their efficiency. Solar PV Tiles National Grid DC circuit Consumer Consumer Inverter for supply to the grid Load circuit AC circuit Circuit distributor and meter Branch box to the grid Angle of inclination of solar panel Solar panel is horizontal Solar panel is vertical (facade) 90º West 90º 80º 70º 60º 50º 40º 30º 20º 10º 0º 10º 20º 30º 40º 50º 60º 70º 80º 90º 90º East 65% 80º 70% 80º 75% 70º 100% 85% 80% 70º 60º 95% 90% 60º 50º 40º 30º 20º 10º 0º South 10º 20º 30º 40º 50º The percentages show the solar yield as a function of the PV tiles orientation and its inclination in relation to the horizontal. 4 SOLAR Photovoltaic GUIDE

5 CODE FOR SUSTAINABLE HOMES, FEED-IN TARIFFS & GUARANTEES In late 2008 the UK Government passed the Climate Change Act which, for the first time, has placed a legal obligation on the UK Government to cut its carbon dioxide emissions by 80% by The UK Government has also signed up to the EU Renewable Energy Directive, which includes a UK target of 15% of energy from renewables by To meet these targets the UK Government has introduced a range of new standards and financial incentives targeted at the buildings sector, currently responsible for 50% of all UK carbon emissions. Whether you are a homeowner or a national housebuilder you can be part of the transformation of the UK national grid from one dependent on fossil fuels to one based on cleaner, renewable alternatives such as solar power. Code for Sustainable Homes The Code is the national standard for the sustainable design and construction of new homes. Its aim is to reduce our carbon emissions and create homes that are more sustainable. The Code uses a one to six Code Level rating system to communicate the overall sustainability performance of a new home, and sets minimum standards for energy use at each level. Renewable energy systems, such as Redland Solar PV, significantly count towards the Sustainable Homes point score. From Code Level 3 upwards their use is increasingly important and Code Level 6 can only be achieved using an on-site means of generating renewable electricity for the home. Redland Solar PV can meet these demands. Feed-in Tariffs (FIT) Introduced in April 2010, the GB Feed-in Tariffs reward those who generate their own low carbon electricity. PV microgenerators benefit from a fixed rate payment for each unit of electricity generated (kwh), called FIT Generation Tariff. In addition, PV microgenerators can use the energy they generate for free and sell the energy they don t use to their electricity supplier, for a minimum guaranteed rate called FIT Export Tariff. The Generation and Export Tariffs are both guaranteed for 25 years from the date the system is first registered. Generation and export tariffs are linked to the Retail Price Index (RPI) and FITs income for domestic properties generating electricity mainly for their own use are not liable for income tax. From April 2012, FITs will be subject to an annual degression rate of 7%. See the FAQ section on page 14 for more details on FITs. Microgeneration Certification Scheme (MCS) To qualify for a Feed-in Tariff, both the PV system used and the installer must be MCS certified. Redland Solar PV Tiles are MCS MCS BBA 0019 certified. Anticipating future requirements in industry certification, Redland Solar PV Tiles have also successfully undergone rigorous performance testing for dynamic wind loading, deluge and driving rain exposure, and resistance to external fire. Guarantees Redland Solar PV Tiles are covered by the Redland 15 Year Roof System Guarantee and a Power Output Guarantee from the PV tile manufacturer guaranteeing at least 90% performance for the first 10 years from date of commissioning and at least 80% performance for the following 15 years. These guarantees combine to give the most comprehensive Solar PV guarantee you will find on the market. Like all products from the Redland range, our Solar PV Tiles have been tested under storm and driving rain conditions at our unique wind tunnel facility and are designed to meet the same wind uplift performance as the surrounding roof when correctly fixed. SOLAR Photovoltaic GUIDE 5

6 MINI STONEWOLD & MOCKBOND MINI STONEWOLD GROVEBURY & LANDMARK D Redland Solar PV Tiles will blend seamlessly into your Redland roof. The roof-integrated systems for Mini Stonewold and MockBond Mini Stonewold, Grovebury and Landmark Double Pantile, 50 Double Roman and Landmark Double Roman are designed for long term performance, ease of installation and good looks. Each PV Tile replaces concrete tiles in a single course to give a neat appearance, while their interlocking, profile specific design gives a superior fit with the surrounding roof tiles. 25 year Power Output Guarantee 15 year Redland Roof System Guarantee MCS certified Clean, green energy generation protects against electricity price rises Designed specifically to interlock with Redland tiles Superior appearance of roof-integrated system Flexible and modular Power output range to suit a wide range of developments Single course PV module gives greater flexibility of installation Aluminium framing enhances durability and fire resistance Suitable for new build or renovation projects Easily installed and expanded Typical Annual Expected Output* 4,000 3,845 3,500 3,194 3,000 2,500 2,530 2,000 1,500 1, ,229 1,548 1, Pack size (kwp) Number of PV Tiles * Based on a 30º pitch, southerly orientation in London Double Roman PV Tiles laid with Brown Brindle Landmark Double Roman tiles 6 SOLAR Photovoltaic GUIDE

7 OUBLE PANTILE 50 DOUBLE ROMAN & LANDMARK DOUBLE ROMAN Grovebury PV Tiles laid with Terracotta Brindle Landmark Double Pantile tiles Redland Concrete Tile Mini Stonewold * Grovebury / Double Roman ** Cover (one PV Tile) 1,911 x 335mm 1,800 x 335mm Fixed batten gauge (tolerance +0mm / -5mm) 343mm 343mm Power Output per square metre 137Wp 146Wp Each PV Tile replaces 6.5 concrete slates 6 concrete tiles Pitch Range degrees degrees Photovoltaic cell technology Mono-crystalline Mono-crystalline Power Output per PV Tile 90Wp 90Wp Open Circuit Voltage 13.86V 13.86V Short Circuit Current 8.46A 8.46A Mini Stonewold PV Tiles laid with Mini Stonewold Slate Grey slates * Applicable also for Mockbond Mini Stonewold ** Applicable also for Landmark Double Pantile and Landmark Double Roman Measured under Standard Test Conditions of 1,000 W/m 2 irradiance, AM 1.5 spectrum, 25 C cell temperature Values of current, voltage and power +/- 10% SOLAR Photovoltaic GUIDE 7

8 CAMbrian / Duoplain Cambrian Slate PV Tiles laid with Cambrian Slate Grey slates Typical Annual Expected Output* 3,500 3,000 2,500 2,000 1,823 2,133 2,446 2,778 3,087 3,400 1,500 1,188 1,495 1, Pack size (kwp) Number of PV Tiles * Based on a 30º pitch, southerly orientation in London DuoPlain DuoPlain PV Tiles laid with Rustic Red DuoPlain tiles 8 SOLAR Photovoltaic GUIDE

9 Redland Solar PV has been optimised for use with two popular, small-format tiles Cambrian Slate and DuoPlain, the latter offering a unique roofintegrated solution for plain effect tiles. Designed for long term performance, ease of installation and good looks, each PV Tile replaces either 6.5 concrete tiles or 6.5 Cambrian Slates in a single course to give a neat appearance, while their interlocking, profile specific design gives a superior fit with the surrounding roof tiles. 25 year Power Output Guarantee 15 year Redland Roof System Guarantee MCS certified Clean, green energy generation protects against electricity price rises Designed specifically to interlock with Redland tiles Superior appearance of roof-integrated system Flexible and modular Power output range to suit a wide range of developments Single course PV module gives greater flexibility of installation Aluminium framing enhances durability and fire resistance Suitable for new build or renovation projects Easily installed and expanded Redland Tile cambrian Slate DuoPlain Cover (one PV Tile) 1,950 x 210mm 1,950 x 188mm Fixed batten gauge (tolerance +0mm / -5mm)* 250mm 188mm Power Output per square metre 90Wp 120Wp Each PV Tile replaces 6.5 slates 6.5 tiles Pitch Range degrees degrees Photovoltaic cell technology Mono-crystalline Mono-crystalline Power Output per PV Tile 44Wp 44Wp Open Circuit Voltage 6.82V 6.82V Short Circuit Current 8.38A 8.38A * Cambrian Slate PV Tile tolerance: +0mm / -20 mm Measured under Standard Test Conditions of 1,000 W/m 2 irradiance, AM 1.5 spectrum, 25 C cell temperature Values of current, voltage and power +/- 10% SOLAR Photovoltaic GUIDE 9

10 system design / components Redland Solar PV Tiles are available in standard packs for each of the 5 Redland PV Tile Types (see tables on Page 11). Redland PV packs are defined by the pack output (kwp), number of PV Tiles and PV area (m 2 ) when laid. Standard pack content PV Tiles Profile specific (Redland Cambrian Slate has is own Redland Cambrian Slate PV Tile, Redland DuoPlain has its own Redland DuoPlain PV tile, same principle applies across the entire Redland PV Tile range). This to ensure the perfect match between the PV Tiles and the surrounding tiles for optimal roof appearance, weather performance and system durability. PV Tiles are made of an IEC certified laminate and an aluminum frame for greater durability and fire resistance. Inverter A range of market leading inverters available to match the PV system design. Fixings All the fixings (ie. screws, clips and allen key) are supplied within the PV Pack. There are no flashings, or additional components to use to make the system weathertight, making the system easy and quick to install. Voltmeter and screw drivers are the only tools required. Display for system monitoring at a glance (optional) Enhance the use of your Redland Solar PV system by adding a wireless monitor. This smart device displays all the essential data by linking directly to the PV system. Simple installation User-friendly Cables PV Tiles have two pre-integrated cables. When installing PV Tiles in a column no additional cables are required. When connecting PV Tiles in different columns, additional cables are required and supplied within the Redland PV standard packs, as are the cables for connecting to the inverter. 2 Mini Stonewold PV Tiles and their tile clips (clips only required for bottom course) PV Tiles ready for roof integration. Junction box Inverter 10 SOLAR Photovoltaic GUIDE

11 PACK SIZES & EXAMPLES The two tables below describe the available PV packs for each of the 5 Redland PV Tile Types with the number of PV Tiles per pack, PV area (m 2 ) and the system output (kwp). They show expected annual financial savings, based on the 1/4/ /3/2011 FIT value for retrofit PV systems and DEFRA recommended value on CO 2 savings. These calculations are based on 50% of the electricity generated being used on-site, the remaining 50% being sold to the grid, for a 30 degree pitch London roof, southerly oriented, without shade. For comparison purposes, the average annual electricity requirement of a four person household is 3,300 kwh a year. This value excludes the energy required for hot water and space heating. Table One PV Pack description for the three following Redland Solar PV Tile Types: Mini Stonewold Solar PV Tiles, compatible with Redland Mini Stonewold and Redland MockBond Mini Stonewold tiles Grovebury Solar PV Tiles, compatible with Redland Grovebury and Redland Landmark Double Pantile tiles Double Roman Solar PV Tiles, compatible with Redland 50 Double Roman and Redland Landmark Double Roman tiles PV area (m 2 ) Typical Annual Financial Savings Number of PV Tiles Mini Stonewold Grovebury / Double Roman Pack size (kwp) Typical Annual Power Output (kwh) FIT Generation Tariff FIT Export Tariff Saving on Imported electricity Total Financial Savings Typical Annual CO 2 saving 8 5.2m m kwp 613 kwh kg m m kwp 915 kwh kg m m kwp 1,229 kwh kg m m kwp 1,548 kwh kg m m kwp 1,863 kwh kg m m kwp 2,530 kwh 1, ,247 1,088 kg m m kwp 3,194 kwh 1, ,575 1,373 kg m m kwp 3,845 kwh 1, ,896 1,653 kg Table Two PV Pack description for the two following Redland Solar PV Tile Types: Cambrian Solar PV Tiles, compatible with Redland Cambrian Slate DuoPlain Solar PV Tiles, compatible with Redland DuoPlain PV area (m 2 ) Typical Annual Financial Savings Number of PV Tiles Cambrian DuoPlain Pack size (kwp) Typical Annual Power Output (kwh) FIT Generation Tariff FIT Export Tariff Saving on Imported electricity Total Financial Savings Typical Annual CO 2 saving m m kwp 593 kwh kg m m kwp 884 kwh kg m m kwp 1,188 kwh kg m m kwp 1,495 kwh kg m m kwp 1,823 kwh kg m m kwp 2,133 kwh , kg m m kwp 2,446 kwh 1, ,206 1,052 kg m m kwp 2,778 kwh 1, ,370 1,195 kg m m kwp 3,087 kwh 1, ,522 1,327 kg m m kwp 3,400 kwh 1, ,676 1,462 kg FIT Retrofit Generation Tariff based on 41.3 p/kwh FIT Export Tariff based on 3 p/kwh Ratio Export / Generated of 50% Saving on Imported electricity at 13 p/kwh CO 2 savings are based on DEFRA recommendation of 0.43 kg/kwh Typical annual power output calculated using PVsyst version 5.06 issued on SOLAR Photovoltaic GUIDE 11

12 data tables PV Tile Dimensions PV Tile Type / Name Mini Stonewold Grovebury Double Roman Cambrian DuoPlain Compatible Redland slate / tile Mini Stonewold MockBond Mini Stonewold Grovebury Landmark Double Pantile 50 Double Roman Landmark Double Roman Cambrian Slate DuoPlain Gross width 1,940 1,827 1,827 1,985 1,973 mm Gross length mm Profile depth mm Exposed length mm Covering width 1,911 (6.5) 1,800 (6) 1,800 (6) 1,950 (6.5) 1,950 (6.5) mm (slate/ tile) Hanging length mm Minimum roof pitch degrees Maximum roof pitch degrees Fixed batten gauge (tolerance: +0mm / -5mm)* mm Covering capacity PV tile/m 2 Covering capacity (one PV tile) m 2 PV Tile weight kg Weight kg/m 2 Tiling batten size 50 x x x x x 25 mm * Cambrian Slate PV Tile tolerance: +0mm / -20 mm Electrical Specification PV Tile Type / Name Mini Stonewold Grovebury Double Roman Cambrian DuoPlain Compatible Redland slate / tile Mini Stonewold MockBond Mini Stonewold Grovebury Landmark Double Pantile 50 Double Roman Landmark Double Roman Cambrian Slate DuoPlain Photovoltaic cell technology Mono-crystalline Mono-crystalline Mono-crystalline Mono-crystalline Mono-crystalline Cell dimensions 156 x x x x x 156 mm Power Wp Wp/m Wp/m 2 Laminate size (active area) 1,778 x 355 1,778 x 355 1,778 x 355 1,778 x 220 1,778 x 220 mm Number of cells Cell efficiency % Module efficiency % Maximum power voltage V Maximum power current A Open circuit voltage V Short curcuit current A Maximum system voltage V DC Temperature coefficient of the open-circuit voltage Temperature coefficient of the open-circuit voltage Temperature coefficient of the short-circuit current Temperature coefficient of the short-circuit current Temperature coefficient of the power Cables V/degree C %/degree C A/degree C %/degree C %/degree C Class II double insulated 4mm 2 cable Class II double insulated 4mm 2 cable Class II double insulated 4mm 2 cable Class II double insulated 4mm 2 cable Class II double insulated 4mm 2 cable Connectors MC3 IP65 MC3 IP65 MC3 IP65 MC3 IP65 MC3 IP65 Measured under Standard Test Conditions of 1,000 W/m 2 irradiance, AM 1.5 spectrum, 25 C cell temperature Values of current, voltage and power +/- 10% 12 SOLAR Photovoltaic GUIDE

13 PV TECHNICAL services Redland has developed a comprehensive range of technical services that will save you time and give you peace of mind that your project is in safe hands. EcoMaster A complete design and specification service for roofing projects involving Redland renewable energy systems Specification of the most suitable Redland Solar PV system for your project based upon your needs Calculation of the estimated energy generated and carbon savings along with estimated revenue and payback as required Full PV array layout plan drawings as required To obtain an EcoMaster: complete an on-line datasheet at or contact the Technical Solutions Hotline specmaster A complete guaranteed roof specification service for your solar project including the tiling. Relieves the burden for the specification writing process for your solar project Tailored specification clauses in NBS-based format Fully compliant with all relevant British Standards 15 year design liability guaranteed for all roofs designed and built in accordance with SpecMaster To obtain a SpecMaster: complete an online data sheet at or contact the Technical Solutions Hotline designmaster A comprehensive CAD library of over 5,000 quality roofing drawings Saves time preparing working drawings for your solar project Prevents risk of incorrect application Drawings available in both DWG and DXF formats Each drawing includes a complementary NBS-based specification clause Available for download at or DesignMaster CD-ROM available Workmanship Warranty Independently insured cover for the workmanship element of your SpecMaster project is now available via Redland s partnership with Auditing Workmanship & Materials Ltd. Contact Redland Technical Solutions for more information. For further information on Technical Solutions: Technical Solutions Hotline technical.redland@monier.com Redland Technical Solutions, Monier Ltd, Broadway Lane, South Cerney, Cirencester, Gloucestershire GL7 5UH SOLAR Photovoltaic GUIDE 13

14 FAQs Is Redland Solar PV limited to flat tiles? No, Redland PV Tiles are available to match three Redland slates: Cambrian Slate, Mini Stonewold, MockBond Mini Stonewold, one Redland plain tile appearance tile, DuoPlain and four Redland profile tiles: Landmark Double Pantile, Landmark Double Roman, Grovebury and 50 Double Roman. Do we require planning permission? Planning permission is not normally required. However, exceptions may apply for systems on listed buildings or in areas of outstanding natural beauty. In all cases it is best to check with your local council Planning Department. What are Feed-in Tariffs (FIT)? Introduced in April 2010, the Feed-in Tariff is a governmentbacked scheme to encourage the uptake of small scale lowcarbon energy generation. Linked to RPI, FIT levels have been set to provide an expected nominal rate of return of 8-10%. How will I get paid under FIT? You will get paid by your energy provider for every kwh of energy produced, whether it is used in your house or exported to the National Grid. PV systems are recognised as one of the prime means of generation and there is a commitment to maintain the initial FIT levels until March 2012, with ongoing tariff payments payable for 25 years. The rate is set at the time the installation is first registered and linked to RPI. From April 2012, FIT rates for new installations will be degressed by approximately 7% each year. Are FIT payments taxable? FITs income for domestic properties generating electricity mainly for their own use will not be taxed as taxable income. Owners of FITs installations will also be able to assign their rights to FITs payments to others, for example when they sell their property. Are there any guarantees? Unlike many rival systems Redland Solar PV tiles are supplied with the roof tiles which surround them and because the whole roof system has been tested its integrity is covered by the Redland 15 year Roof System Guarantee. This combined with the Solar PV Power Output Guarantee from the PV tile manufacturer for 25 years from the date of commissioning (at least 90% performance for the first 10 years and at least 80% performance for the next 15 years) offers the most comprehensive Solar PV guarantee you will find on the market. Who do I contact for more information? If you would like further details on Redland PV Tile, please contact Redland Customer Service Hotline on who will put you through to one of our dedicated Renewable Energy experts. Typical FIT rates for PV (p/kwh) PV System Size Year 1: Apr 10 Mar 11 Year 2: Apr 11 Mar 12 Year 3: Apr 12 Mar 13 4 kw new build 4 kw retrofit >4-10 kw > kw >100kW-5MW In addition to the fixed rate for each unit of electricity generated, you will receive an export tariff of 3p/kWh for electricity exported back to your energy supplier. You will also benefit from reducing the amount of electricity purchased from the grid, leading to lower energy bills and partial shielding from future price rises. 14 SOLAR PHOTOVOLTAIC GUIDE

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16 Customer Service Hotline For all sales enquiries/orders call or fax our dedicated Customer Service Hotline and you will be connected to the customer service representative dealing with your area. Telephone * Facsimile sales.redland@monier.com Technical Solutions Hotline For technical enquiries please contact Technical Solutions directly: Redland Technical Solutions, Monier Ltd, Broadway Lane, South Cerney, Cirencester, Gloucestershire GL7 5UH Telephone Facsimile technical.redland@monier.com * When calling the Customer Service Hotline your telephone conversations may be recorded for training purposes. Monier Promise We offer more than just the means of covering a roof. Our trusted expertise, breadth of product range and continuous innovation enable us to help everyone to harness the power of their roof in order to create value and to make changes for the better for families, businesses and communities, both now and in the future. MONIER: More power to your roof. Redland Head Office Monier Ltd, Sussex Manor Business Park, Gatwick Road, Crawley, West Sussex RH10 9NZ MORE POWER TO YOUR ROOF Designed by TGV, LIT057JUL10