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Project assessment for bankability: Quality assurance from the PV module through system planning to sustainable operational management

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By Ingo Baumann, Senior Expert in Innovative Services, TÜV Rheinland; Willi Vaassen, Business Field Manager, TÜV Rheinland

Economic success in operating PV systems depends essentially on the likelihood of their long-term operation and their delivery of the expected energy yield. These requirements, for which a lifetime of 20–25 years is often assumed, are demanding and cannot be met without preparation. Preconditions are the acceptable quality and long-term stability of the products employed (particularly the PV modules, but also all other components and materials) and the absence of damage to these items during transport and handling. Moreover, PV systems must be professionally planned and properly implemented. This includes considering energy yield assessments not only in the initial estimation of the energy yield, but also in the subsequent planning for concrete implementation. In addition, professional operational management and appropriate maintenance measures will ensure operation with maximum availability. Yield insurance policies can safeguard profitability and render the risks calculable; various models exist for this purpose and these must be carefully tested. It is important that the insurances services also cover the possible insolvency of the responsible system and component suppliers.

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Photovoltaics International Archive
Our focus here at Photovoltaics International has always been on efficiency improvement and driving down the cost per watt of modules. In this issue we take a look at some of the market dynamics driving prices in the supply chain so that you can make better decisions to help reduce your overall cost per watt and increase your efficiency at the same time.

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