Journal
ENERGY ECONOMICS
Volume 67, Issue -, Pages 545-553Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.eneco.2017.09.001
Keywords
Renewable energy promotion; Feed-in tariffs; Innovation
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Over the last two decades, feed-in tariffs have pushed the massive expansion of electricity from renewable energy sources in Germany. Between 1991 and 1999, feed-in tariffs were prescribed through the Electricity Feed-in Law - the so-called Stromeinspeisungsgesetz (SEG) - at relatively moderate rates. From 2000 onwards, the SEG was replaced by the Renewable Energy Sources Act - the so-called Erneuerbare-Energien-Gesetz (EEG) - with much higher subsidy rates. The rise in subsidies to renewable power generation under the EEG came along with a substantial increase in electricity prices provoking an intense public debate on the benefits of renewable energy promotion. In our regression analysis, we assess one popular justification for feed-in tariffs: the demand side effect of induced innovation. We find that the innovation impact of the German feed-in tariff scheme over the last two decades supports the positive innovation hypothesis. However, the inducement effect of the feed-in tariff scheme under the EEG is not significantly different from that of the SEG. Given the drastic cost of the EEG, we caution against the appraisal of the EEG feed-in tariff scheme solely on the grounds of its impact on technological innovation. (C) 2017 Elsevier B.V. All rights reserved.
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