In July 2016, the second FFU Report appeared. It is authored by Dr. Kerstin Tews and treats the issue of residential photovoltaics. The title is "Mapping the Regulatory Features Underpinning Prosumer Activities in Germany. The case of residential photovoltaics".

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Abstract:

This report maps the regulatory features underpinning prosumer activities in Germany. It is structured according to a case study design which was developed to compare different countries and to draw respective lessons on policies which enable the prosumer uptake. With a total installed capacity of 38 GW (2015) PV power has reached a stage of systemic importance for the whole power system. Although residential PV (<10 kWp) accounts for only 13 percent of total installed PV capacity, it is an important segment for several reasons. “Prosuming” — although never defined as an official term in Germany — is both a subject and a driver of the adaptive legislation on the RES support scheme and on system integration of RES. It is the result of a dynamic incentive structure set by both regulatory provisions as well as by market developments and the permanent interplay between these factors, rather than as a result of a targeted prosumer policy. Thus, the challenge this case study is confronted with is to map these factors and their respective interplay over a rather long period of time.