Profitability of residential battery energy storage combined with solar photovoltaics

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

31 Zitate (Scopus)

Abstract

Lithium-ion (Li-Ion) batteries are increasingly being considered as bulk energy storage in grid applications. One such application is residential energy storage combined with solar photovoltaic (PV) panels to enable higher self-consumption rates, which has become financially more attractive recently due to decreasing feed-in subsidies. Although residential energy storage solutions are commercially mature, it remains unclear which system configurations and circumstances, including aggregator-based applications such as the provision of ancillary services, lead to profitable consumer investments. Therefore, we conduct an extensive simulation study that is able to jointly capture these aspects. Our results show that, at current battery module prices, even optimal system configurations still do not lead to profitable investments into Li-Ion batteries if they are merely used as a buffer for solar energy. The first settings in which they will become profitable, as prices are further declining, will be larger households at locations with higher average levels of solar irradiance. If the batteries can be remote-controlled by an aggregator to provide overnight negative reserve, their profitability increases significantly.

OriginalspracheEnglisch
Aufsatznummer976
FachzeitschriftEnergies
Jahrgang10
Ausgabenummer7
DOIs
PublikationsstatusVeröffentlicht - Juli 2017

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