International experiences with tender procedures for renewable energy - A comparison of current developments in Brazil, France, Italy and South Africa

In all countries except Brazil auction prices have continuously fallen by 33% (Italy, wind energy) to 76% (South Africa, photovoltaics). In Brazil, the auction price increased from auction round eight to 14 from 50% to 85% of the first auction price. However, auction prices are highly dependent on factors outside of the support scheme of tenders (e.g. interest rates), so that their evolution and level are not a suitable indicator to determine whether tenders lead to minimal support costs.