پتانسیل حراج معکوس در تخصیص یارانه برای استفاده از سیستم فتوولتائیک سقف با هزینه بالا

Photovoltaic (PV) has developed to one of the most promising technologies for renewable electricity generation. The Austrian government currently provides subsidies for roof-top PV systems through a constant, administratively determined feed-in tariff or an investment co-funding. In both subsidy schemes, applications are approved on a first-come, first-served basis. There are concerns about (i) the selection of suitable roofs for PV systems, and (ii) allocating subsidies among applicants to deploy roof-top PV systems cost-effectively. Thus we analyze the potentials of a simple discriminative first-price reverse auction application scheme. Applicants define individually the required level of subsidy and those with the lowest request for subsidies are selected. In an ex-post analysis, we evaluate the potentials of such a scheme in increasing power output and saving public spending for the federal state of Vorarlberg in Austria. Results indicate a potential increase of cumulated produced electricity between 15% and 18% in comparison to the current policy. In addition, a reverse auction-based system would lead to savings of public spending per kWh between 20% and 41%.