http://danfoss.ipapercms.dk/Drives/DSI/Casestories/UK/FieradiRoma/RSS.ashxDanfoss Solar Inverters PagesMon, 28 Mar 2011 11:09:14 +0200http://danfoss.ipapercms.dk/Drives/DSI/Casestories/UK/FieradiRoma/http://danfoss.ipapercms.dk/Drives/DSI/Casestories/UK/FieradiRoma/?Page=1http://danfoss.ipapercms.dk/Drives/DSI/Casestories/UK/FieradiRoma/?Page=1MAKING MODERN LIVING POSSIBLE Solar solutions TripleLynx and Thin-film modules show true value and versatility The world’s largest PV thin-film installation was completed at the Fiera di Roma exhibition halls in Italy, 2008. The thin-film solar system, which covers approximately 3,500m2 of this innovative building, uses high-efficiency Danfoss TripleLynx transformerless inverters. The project brought together a number of partners in the solar industry to create a system that combines aesthetics with practicality and high output. The €12m investment was a joint venture between Fiera Di Roma and Green Utility. Using transformerless inverters with the highly cost-effective thin-film panels creates a lightweight and versatile solar panel solution with high output efficiency. But there were challenging technical hurdles to overcome. New PV laminate design Previously, an inverter with a separate low-efficiency transformer was needed for thin-film panels; this was then earth grounded to combat Transparent Conductive Oxide (TCO) corrosion. TCO occurs when water reacts with the sodium contained within the thin-film modules and results in reduced yields and the potential destruction of the entire system. Thanks to a new design in the Uni-Solar panels used in the Fiera Di Roma installation, there is no risk of water ingress, allowing the high-efficiency Danfoss TripleLynx transformerless inverters to be safely used. High efficiency inverters deliver high yield, improving system performance The results of using Danfoss TripleLynx inverters have been dramatic. The new thin-film covered roof produces approximately 1.7 million Kwh of electricity per year, equivalent to the total power consumption of around 600 households. Generating this power using solar panels will prevent the creation of around 1,200 tonnes of CO2 each year. This means that Fiera Di Roma meets the renewable energy sourcing requirements set down by the EU, 12 years ahead of schedule. 150 TripleLynx 10k inverters produce 1.7 million Kwh of electricity per year www.danfoss.com/solar2011-03-28T11:09:14+02:00http://danfoss.ipapercms.dk/Drives/DSI/Casestories/UK/FieradiRoma/?Page=2http://danfoss.ipapercms.dk/Drives/DSI/Casestories/UK/FieradiRoma/?Page=2Snap-fit solution combines good looks with powerful performance The Fiera Di Roma halls are architecturally striking and the use of thin-film technology in the solar panels has meant that the design integrity of the building is preserved. To give a sense of the scale of the installation, it involves 120,000 m2 of metal roofing across 14 pavilions. Roofing supplier ISCOM devised a PV solution using UniSolar flexible laminates in an aluminium support, which could then simply be snap-fitted into the existing metal roofing. Powerful Performance 150 TripleLynx 10k inverters ensure optimum output performance. The TripleLynx 10k has two inputs and two independent MPP trackers, meaning very narrow tracking of PV modules. To be precise every 5kW has its own MPP tracker. On a curved roof this makes a big difference. The TripleLynx inverter series has 98 % efficiency and an equally impressive MPP efficiency of 99.9 % in static and 99.8 % in dynamic conditions. This means that the energy the panels can produce is the energy the inverter receives and only a fraction is lost in the conversion. The result is excellent output performance. Moreover, the low weight also makes the inverters very easy to handle. Due to its compact dimensions and 35 kg it is easy to carry and move about. The inverters are shipped in pallets of 12 inverters, hence 120 kW per pallet in this case. Driving technical advances in solar energy production Danfoss is excited to be involved in the dynamic growth of largescale rooftop solar energy projects. Roof-mounted solar installation is the fastest-growing solar option and is expected to account for 85% of installations by 2015. The partnerships being formed now in the solar power industry between manufacturers, suppliers, designers, installers and commercial operators are leading to exciting new developments and real cost/performance benefits. And as the technology keeps advancing, solar panel design becomes more versatile and the investment potential of PV solutions increases. Utilising the advantages of the TripleLynx inverter The high efficiency of the TripleLynx inverter is not the only characteristic to be utilised in the Fiera Di Roma installation. The 1000Vdc input, allows for 60% longer strings than traditional string inverters, reducing cabling requirements. The efficiency curve is very flat across the wide voltage range, ensuring high output under all conditions. Danfoss Solar Inverters A/S • Ulsnaes 1 • DK-6300 Graasten • Denmark • Tel: +45 7488 1300 • Fax: +45 7488 1301 • E-mail: solar-inverters@danfoss.com www.danfoss.com/solar DKSI.PA.01.B1.02 Copyright Danfoss A/S ©2011-03-28T11:09:14+02:00