Eigenerzeugung und Selbstverbrauch von Strom – Stand, Potentiale und Trends

Prosumage of solar electricity: pros, cons, and the system perspective

“…In Prognos (2016), it is argued that PV energy storage systems may, from a consumer perspective, continue to be economically inferior to PV systems without storage even in case of decreasing storage costs because PV costs over-proportionally decrease further. Bardt et al (2014) further show that the economic potential of self-consumption strongly depends on the regulatory framework. In a stylized simulation for Germany, the potential for residential self-consumption is very high in case of continued implicit support, but vanishes in case of changed regulation.…”

“…By 2016, the FIT was much lower than the retail 19 PV-related prosumage is not the only and certainly not the most relevant self-consumption sector in Germany today. Bardt et al (2014) show that industry, the commercial sector, and transportation historically had (and still have) much larger shares in overall self-consumption, largely based on CHP generation, than households engaging in PV prosumage.…”

“…A substantial part of the potential distributional impacts of prosumage is related to its interaction with grid charges (see Picciariello et al 2015, andBardt et al 2014 for the specific situation in Germany).…”

“…Bardt et al 2014, Borenstein 2015 Putting the distributional challenges into perspective, net effects may actually be rather low if offsetting factors are accounted for, such as lower renewable support payments caused by prosumage PV. 17 Likewise, a study on the particular German setting argues that distributive effects of prosumage are likely to remain limited because the actual potential for PV self-consumption in Germany is fairly low (Prognos 2016).…”

“…Future growth rates of the PV prosumage segment in Germany are uncertain and strongly depend on the evolution of the regulatory environment (cf. Bardt et al 2014). A recent study (Prognos 2016) concludes that the overall electricity generation potential for prosumage in single-and two-family houses, in the agricultural sector, and in food retail buildings is rather modest, with 44 TWh achievable by the year 2035; about half of this represents additional power-to-heat applications.…”