1.3 Reason for FIT success
It is important to note that apart from the promotion system here should be other reasons for successes such as in the cases of Germany and Greece. The successes of countries using feed-in tariffs have several reasons [3]:
• FIT offers long-term security for investors through guaranteed and fixed tariffs for long periods on a relative high level (high price per kilowatt hour).
• The existence of well-built financial subsidy programs.
• Regional investments towards economic and social welfare.
• Technology-specific and location dependent differentiation.
• Stable governmental regulations