Sustainable photovoltaic technology development: step-by-step guidance for countries facing PV proliferation turmoil under the feed-in tariff scheme

This article seeks to overview the historical development of FIT scheme in major FIT countries including Germany, Italy, France, Spain, UK over the past decades, their implementation, and identify the specific reformed design elements during different round of FIT reform. Surprisingly, after such a deep investigation, it is possible to predict the next move of FIT reform in each country and to evaluate if the reform extent is too over or too less. Such a delicate step-by-step Guidance may also be helpful for late and prospective FIT comers to fine-tune their scheme and to promote the sustainable development of PV.