摘要：Purpose – The world is undergoing a dramatic shift in climate conditions. A heated
debate is on-going over what measures to take in order to overcome the global-warmingrelated
temperature increase, now more than 2 degrees centrigrade. The article tries to
evaluate the contribution of the feed-in tariff (FIT) and the price of components for solar
plants to the accumulation of new solar capacities in Germany, with the aim of
determining the reasons for a drastic decline in the new capacities, observed since 2012.
Methodology – An autoregressive integrated moving average (ARIMA) is used with the
new PV Capacities as a dependent variable and component prices and feed-in-tariffs as
independent variables. Data from German Federal Network Agency is used.
Findings – The statistical analysis shows a significant effect of component prices (in EUR
per watt) and the value of the FIT (in EUR) on the New PV Capacities. As Germany has
not reached the postulated yearly increase rate of New PV Capacities of 2500 MW since
2014 (EEG, 2017), new approaches are necessary to overcome this situation.
关键词：renewable energy; solar plants; energy tariffs
