LCA, Carbon Footprint, LCI, Material Reduction, Resource Depletion, mono-Si based PV Modules
Summary / Abstract:
This conference paper deals on one hand with the monitoring of the current degrees of achievement of the targets of the European H2020-FOF-13-2015 Eco-Solar project regarding project targets in material reduction. On the other hand the environmental impacts like carbon footprint, acidification or resource depletion of the current processing status of the individual work packages are considered in relation to the environmental impacts of the manufacturing processes of state of the art PV modules (baseline). In the halftime assessment, by implementing all previous project developments into the production process chain (ingot wafer cell module) the project target reduction demand of aluminium can be achieved totally for both, mono- and multi-Si based PV modules, the project target reduction demand of argon gas can be achieved totally for mono-Si based PV modules only. Most of the other project targets benefit as well, but without achieving the target values yet. Compared to the results of state of the art PV modules (baseline) environmental advantages exist for almost all examined impact categories. The only exception is eutrophication terrestrial of the improved production process of multi-Si based PV modules. In the case of climate change, the greenhouse emissions are reduced by more than 11 % for mono-Si based PV modules and more than 15 % for multi-Si based PV modules. The improvements trace back to the ingot production as well as module production mainly and to a lower proportion to the wafer production.